Scaffolds need to be erected plumb, level, squared and braced to . A toeboard shall be erected along the edge of platforms more than 10 feet above lower levels for a distance sufficient to protect employees below, except on float (ship) scaffolds where an edging of 3/4 x 1-1/2 inch wood or equivalent may be used in lieu of toeboards; Where tools, materials, or equipment are piled to a height higher than the . Shapes materials to prescribed measurements, using saws, chisels, and planes. (Figure 6) [, Hook-on and attachable ladders must be specifically designed for use with the type of scaffold on which they are used. [29 CFR 1926.451(e)(9)(i)]. Footing. Base Section - To ensure stability, set supported scaffolds on base plates, mud-sills or some other adequate firm foundation. No handhold available. You will need many of each component for larger structures. Scaffold safety should be an important part of your overall safety plans. 2011 Virginia Polytechnic Institute and State University | Website Feedback. Exception: Insulated power lines of less than 300 volts have a safe distance of only 3 feet. shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, square, and rigid. Don't use bricks, blocks, barrels, or other unstable objects to level a scaffold. Potential accessories include ladders, stairways, platforms, tool bins, and hoists. Crossbracing is required on both front and back sides of each scaffold buck or frame. [, Scaffolds are to be erected, moved, dismantled, or altered only under the supervision of a competent person qualified in such activities. Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills (or other adequate firm foundation). [, Have rest platforms provided at a maximum of 35-foot vertical intervals. 6. Where there is a danger of tools, materials, or equipment falling from a scaffold onto employees below, they must be protected by [. The maximum extension of the plank cannot be more than 12 inches for planks that are 10 feet long or less. Install the deck, which may be an all aluminium platform or with wood deck or scaffold planks. Use footings that are level, sound, rigid and capable of supporting the load without settlement or displacement. [, Nothing that could cause a slip, trip or fall (i.e. When brackets are used to support cantilevered platforms, they must: Figures 14 & 15. A scaffold must be erected "plumb, square, and level," because: - Ans-If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. decking, planks) must not be painted to hide defects. In such cases, the gap will be as small as possible and not exceed 9 inches. Suspension scaffold rigging must at least 6 times the intended load. [. Review blueprints, work orders, the project schedule and other written requirements to determine where these scaffolds should be used. In some cases, you may choose a new. e. The main components are scaffolding tubes, scaffold clamps, and base plates. If using wooden planks, they must extend beyond the supporting points The following factors should be considered in the scaffold safety planning phase: Scaffolds must be designed by a qualified person. Extreme weather or damage to structural components can also affect a scaffold's stability. The scaffold should be plumb, level and square. (Figure 4) [, Scaffolds shall be altered only under the supervision and direction of a competent person. Ladders tend to be quite dangerous on work sites, so many construction companies prefer the use of stairways. (k) The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. Hardware should be included to fasten the planks into place. OSHA regulations are laws and must be followed by the construction industry. Damaged or deteriorated equipment must not be used USA (v. 2008) 21 Erecting Scaffolding. General Guidelines. Personal Fall Arrest System, Guardrail System, or 3/4 inch (1.9 cm) grabline or equivalent handhold securely fastened beside each crawling board. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. the type of scaffold in question. The two measurements should be equal. Additional requirements for these scaffolds can be found in their respective modules. [. Learn how your comment data is processed. [, In addition to meeting the requirements of, When vertical lifelines are used, they must be fastened to a fixed safe point of anchorage, independent of the scaffold, and be protected from sharp edges and abrasion. In addition, there is a lot of information regarding building your own scaffold towers on the Internet. Install the diagonal brace to keep the scaffolding square. [, Slip-resistant surfaces on treads and landings. All scaffolding products available at scaffoldframe.com meets OSHA and ANSI standards, and have a 5 year warranty*. Uplift is the separation of a frame from the frame below it. To counteract this, the scaffold must be braced or tied off to a stable structure such as a structural steel. Step 2. Avoid propping the scaffolding frames up on the side of the bed. Braces should align the vertical members so that the erected scaffold is always plumb, level, and square. Toeboards must be installed not more than 1/4 inch above the platform and securely fastened. Plumb and brace poles, legs, posts, frames and uprights to prevent swaying and displacement. [, Scaffold components manufactured by different manufacturers are not allowed to be modified to make them fit together, unless a competent person determines that the resulting scaffold is structurally sound. [, Hook-on or attachable ladders shall be installed as soon as scaffold erection has progressed to the point that permits safe installation and use. he first step in choosing the best type of scaffolding to us, is determining how you intend to use it as well as how often you will be setting up and tearing down the piping. One must also consider all the necessary components and hardware needed in order to have the safest most accessible construction work platform. Once erected, provide toeboards on all railed sides to prevent falling object hazards. In addition, the scaffold and its components must support, without failure, its own weight and at least four times its maximum intended load. (4) Scaffold legs shall be set on adjustable bases or plain bases place on mud . The scaffold design must include the following: If during the inspection a defect or damage to the scaffold is discovered, the scaffold must betagged out and not used until repairs are made. the side of a building) basically serves as the fall protection system. Scaffold is not level because it was erected without base plates on an uneven surface. [, Guys, ties, and braces must be installed according to the scaffold manufacturer's recommendations or at the closest horizontal member to the 4:1 height ratio and be repeated every 20 vertical feet for narrow scaffolds (3 feet or less in width), and every 26 vertical feet for scaffolds greater than 3 feet in width. Before beginning dismantling procedures, reconstruct and/or stabilize the scaffold as necessary. Fasten the screw jack to the sills with either nails or screws. (1) Scaffolds shall be properly braced by diagonal braces for securing vertical members together laterally, and the cross braces shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, square, and rigid. Frames and panels shall be braced by cross, horizontal, or diagonal braces, or combination thereof, which secure vertical members together laterally. Top rails (manufactured after 1/1/2000) must be 38 - 45 inches above the platform surface. He fell 16 feet to the ground, sustaining facial fractures and other injuries. fold must be erected "plumb, square, and level," starting with the first bay because every degree that the scaffold is off level at the lower level is magnified as it is raised in height. Plumb and level all scaffolds as the erection proceeds. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. They can also choose if they want it mobile or stationary. Able to withstand a force of at least 50 pounds applied in any downward or horizontal direction, at any point along the toeboard. Do not force frames or braces to fit - level the scaffold until proper fit can easily be made. While sitting or kneeling on a fixed deck plank attached to a fabricated frame scaffold, a worker was pulling a 16-foot long 2x4 off the bucket of an excavator. Toeboards must be installed on work platforms where materials or tools will be in use. Changes in the types of scaffolds, fall protection, falling object protection, or other equipment present a hazard for which an employee has not previously been trained. Lanyards or connecting devices must be connected to a vertical lifeline (1st choice), a horizontal lifeline (2nd choice), or a structural member of the scaffold (last choice). Scaffold components of dissimilar metals should not be used together, unless the competent person has determined that galvanic action will not reduce the strength of any component. [, Fall protection consists of either personal fall arrest systems or guardrail systems meeting OSHA requirements. This individual must supervise all scaffold assemblies, changes, movement, or dismantling. The Scaffold cross braces should never be used as a means of access. | QUESTIONS? Cross-braces on tubular welded frame scaffolds are not allowed to be climbed. Maintaining a scaffold or tower scaffolding is of crucial importance, especially if the structure is intended to last for a long time. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. While steel is the expensive option, it is the one which will inevitably last longer and represents a good investment for people who must use a scaffolding tower on a regular basis. Always use . Tip: Because it may be difficult to determine if a power line is insulated, or what its exact voltage is, the 10 foot rule should always be applied. Legs, posts, frames, poles, and uprights must be on base plates and mud sills, or a firm foundation and, be plum b and braced. Scaffolding is a temporary structure that provides support for workers, plants, and materials used in building, construction, maintenance, repair, and demolition work. Because metal frame scaffolds are conductive, power tools, cords, etc., that suffer insulation failure can electrify the entire scaffold. NOTE: Except where indicated, these requirements also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds as well as the specialty scaffolds described in the Supported Scaffolds module. Fall protection consists of either personal fall-arrest systems or guardrail systems, and must be provided on any scaffold 10 feet or more above a lower level. To accomplish this, the scaffold design must incorporate a realistic Scaffolding means a convenient platform for persons to work at height. Because the frames are stacked, the cross braces have to keep the scaffold plumb, level, and square. The maximum extension for a screw jack is 18 inches high. This topic discusses supported scaffolds. The drawback to stairways, however, is the amount of space they are likely to take up in the overall structure. Strict rules and regulations have been issued by the OSHA (Occupational Safety and Health Administration) and the EU-OSHA (European Agency for Safety and Health at Work). OSHA 1926.454 (c) states: When an employer has reason to believe . The proper use of the scaffold, and the proper handling of materials on the scaffold. Ladder Jack Scaffold. [, As frames are stacked, cross braces must be of such length as will automatically keep the scaffold plumb, level, and square. Too much material being stored on the platform. Except when used only as a walkway, the platform is the work area of the scaffold. The nature of any electrical hazards, fall hazards, and falling object hazards in the work area. Find out more here or call us at 209-634-2929! Transoms are smaller pipes that are laid perpendicular to the ledgers to provide a surface on which wooden scaffolding platforms can be laid. Fabricated frame scaffolds are the most common type of scaffold because they are versatile, economical, and easy to use. When conditions warrant, the height of the top edge may exceed the 45-inch height, provided the guardrail system meets all other criteria. rather than a scaffolding set; the tower will be much shorter and easier to tear down and construct, though it will only be suitable for smaller jobs. from the top of the sill, depending on the slope. Barricades to keep personnel out of a hazardous area. Scaffolds and scaffold components must be capable of supporting, without failure, their own weight and at least 4 times their maximum intended load. All brace connections shall be . NOTE: Except where indicated, the same basic scaffold requirements that appear in this module also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds described in Supported Scaffolds. The standard dimensions are 5 foot and 7 foot long. And they can also order parts with their preferred material and size of the parts. Where a platform changes direction (ex. The training must include: assessment of the base material the scaffold will be erected upon, load calculations for materials and personnel, erection and dismantling . Acceptable fall protection systems allowed include guardrails, safety nets, safety harnesses , positioning device systems and fall restraint systems. This risk can be removed through proper clearance and maintenance. We pride ourselves on exceeding our clients expectations in every interaction to make sure that our clients know how much we value and appreciate their business. Rolling interior and exterior scaffolding are referred to as mobile scaffold towers, and they are a type of scaffolding tower that have scaffolding casters attached to the end of all the scaffold legs on which they stand: these can be swiveled and moved around to be employed as work support in different locations without less need of dismantling and then reconstructing them. Several days later, a crew of seven workers was instructed to replace the scaffold and finish painting the sign. Supported scaffolds are scaffolds supported from the ground by rigid elements such as outrigger beams, poles, legs, base plates, sills and posts. Connect the first cross- brace to the frame. The scaffold was constructed on a poured concrete floor and had been leveled. The scaffold was not secured to wooden footing supports, nor was it tied to the building. The technical storage or access that is used exclusively for statistical purposes. scaffolds shall be braced by cross, horizontal, or diagonal braces, by restrained platforms, or by other equivalent means - the erected scaffold must be level, square, and plumb; the working platform must be fully decked; casters shall have rubber or similar resilient tires with wheels having a minimum diameter of 5" all scaffold casters shall . . They may be made of solid material or mesh with openings no greater than 1 inch. Attach tags at the access point of the scaffold. Employees involved with set up (or near) the scaffold must wear hard hats. [, Do not load the scaffold or any component parts beyond their maximum capacity (their own weight and 4:1 the maximum intended load). This will have an impact on what components you will need as well as how many of each component will be necessary to complete your tasks. and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. Canopy structures made of solid materials. Note: Except where . To check a scaffold for being plumb, use a level on two opposite uprights. The ladder must extend 1 m (3 ft.) above the landing. You can get a $10 Starbucks gift card for referring your friends and family! For long (running) scaffolds, guys, ties, and braces shall be installed at each end of the scaffold and at horizontal intervals not to exceed 30 feet. [, Uniform riser height, within -inch, for each flight of stairs. Scaffolds must be fully planked or decked whenever possible. Scaffolding. Tube and coupler scaffold design must comply with 29 CFR 1926.451-.452. [, A landing platform at least 18 inches wide by 18 inches long at each level. How to use a plumb bob. [, Each employee on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. These are only a few basic physical structures of scaffold towers. It's best to have everything as low as possible so parts don't get blown or bounced out. Because the number of injuries from . Runners and bearers must be installed on edge. Due to their strength, these scaffolds are frequently used where heavy loads need to be carried, or where multiple platforms must reach several stories high. Place the first frame onto the base plates at the high point. [, A toprail of each stair rail system capable of serving as a handrail, unless a separate handrail is provided. [, A space of at least 3 inches between handrails, or stair rails used as handrails, and other objects. In Asia, bamboo is used as a construction material. Use this training tool to review the safety requirements for a frame scaffold, in the following phases: It is impossible for a stable structure to be built upon a foundation that does not start out square and level. Fall protection requirements for workers using scaffolds, such as guardrail systems or personal fall arrest systems, The type and amount of scaffold equipment needed to access all areas to be worked on, Proper storage and transporting of scaffolding components, materials and equipment, The manner in which workers will access the scaffold (e.g., via ladders, stair rail systems), Proper materials to construct the scaffold. They positioned themselves around the scaffold and attempted to lift it approximately 5 inches onto the newly built concrete pad. This would be in reference to stand alone scaffold towers. [, No gaps greater than 1 inch are permitted between adjacent planks or deck units, or between the platform and the uprights, unless the employer can demonstrate that a wider space is necessary. Stability and durability are the key components for the scaffold towers to be safe. Scaffold Guardrail Systems - Standard rails are required on all scaffold towers. The other five workers were hospitalized with electrical burns. Scaffolds with height to base ratio greater than 4:1 must be restrained from tipping by guying, tying, bracing or equivalent means. Float Scaffold. Construction and loading must comply with engineered designs and manufacturers requirements. [, Scaffold platforms and walkways must be at least 18 inches wide, unless they are used in areas that the employer can demonstrate are so narrow that they must be less than 18 inches wide. The size of the mud sill shall be based on the type of soil the scaffold will be erected upon. When the other end of the 2x4 slipped off the bucket, the employee did not let go of his end, and was pulled off the deck. Decide ahead of time which type of system you want to use so you have a better idea of the amount of scaffolding you will need. B. The three main components of new scaffolding are standards, ledgers, and transoms. Frames and panels should also be locked together to prevent uplift. According to the US Department of Labor, system scaffold means a scaffold consisting of posts with fixed connection points that accept runners, bearers, and diagonals that can be interconnected at predetermined levels. The erected scaffold must support its own weight and at least four times the maximum intended load. Supported scaffold poles, legs . NOTE: Except where indicated, these requirements also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds described in the Supported Scaffolds module. This site uses Akismet to reduce spam. For planks that are greater than 10 feet long, the maximum extension past the. building materials, paint roller extensions, scaffold components) that may be handled on them, come closer than 10 feet to the power line. Platforms may be coated periodically with wood preservatives, fire retardants, and slip-resistant finishes, provided they do not obscure the top or bottom wood surfaces. (Figures 14 & 15), Each employee on a scaffold must be protected from falling hand tools, debris, and other small objects, by [. 2. Bracing Connect panels and frames with diagonal, horizontal, or cross braces along or as a combination, in order to laterally secure the vertical members. This will determine how many of each component you will need. The work deck must be fully planked. 22.B.12 Scaffolds shall be plumb and level unless engineered and designed to contour as the structure does. Tip: Separation of frames can occur in high winds (uplift), or when workers climb endframes, overload the platform, or strike the scaffold with tools, materials, etc. Midrails must be capable of supporting at least 150 pounds applied in a downward or outward direction. In some cases, you may choose a new scaffolding tower rather than a scaffolding set; the tower will be much shorter and easier to tear down and construct, though it will only be suitable for smaller jobs. Consider such platforms for added stability and safety. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. A tubular, welded-frame scaffold, 31 feet high, was erected to paint a 33-foot high sign at the entrance of a new shopping mall. See Appendix A of Subpart L for non-mandatory toeboard guidelines. Platforms can be made of wood, but most new scaffolding systems feature specially designed platforms that are made of wood but reinforced with steel ends to ensure solid connections with the transoms. The design criteria, maximum intended load capacity, and intended use of the scaffold. Such retraining is required in at least the following situations [. The competent person should use this checklist for daily inspections of the scaffold. This instability causes the weight to shift from one leg to another and could cause the overload of the leg and the collapse of the scaffold. A scaffold can be overloaded by [. For example, a . 4. (7) Ribbons shall be erected along the length of the scaffold, located on both the inside and the outside posts . C. Survey the job site. When a supported scaffold reaches a height that is more than four times its minimum base dimension (4:1), it must be restrained by guys, ties, or braces to prevent it from tipping. In general, a level is the easiest way to achieve the desired right angles. In such cases, the platforms must be as wide as feasible, and fall protection must be provided. Training shall include [. The forklift is not moved horizontally while the platform is occupied. Tip: A scaffold can be overloaded by removing the braces, which causes the weight on the scaffold to be distributed to fewer structural members. The focus of this position will be to construct, erect, install, and repair structures and fixtures of wood, plywood, and wallboard, using carpenter's hand tools and power tools, conforming to . Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. Supported scaffold poles, frames and uprights must be plumb and braced to prevent any displacement caused by swaying. 1926.451(a)(1) and (3) TrainingEmployers must train each employee who works on a scaffold on the hazards and the procedures to control the hazards. 1. There were no guardrails at the working level. 3. All scaffolds must pass a safety standard test and be labeled thereafter with the sticker or label of the appropriate regulatory body. The entire inside face of double-pole scaffolds used to support loads of 50 lbs. Is erected plumb and level. Has lockable wheels if it is a mobile rolling scaffold. bucks) must be joined together vertically by coupling or stacking pins (or equivalent means). Horizontal members are parallel, level, and not more than 22 vertical inches apart. Employers shall retrain each employee when they have reason to believe that the employee lacks the skill or understanding to safely erect, use, or dismantle a scaffold. Tube and coupler scaffold design must comply with 29 CFR 1926.451-.452. [29 CFR 1926.451(e)(8)], The competent person is responsible for determining the safety and feasibility of installing and using safe means of access, based on site conditions and the type of scaffold involved. [, A distance of no less than 28 inches and no more than 37 inches from the upper surface of the stair rail to the forward edge of the tread, in line with the face of the riser. Specific requirements are described below. [29 CFR 1926.451(f)(5)]. When toeboards are used for falling object protection, they must be [. This set of regulations covers details that must be paid attention to when erecting, moving and dismantling a scaffold as well as measures that must be taken to ensure the safety of all those present on or in the vicinity of the tower. They are frequently used in one or two tiers by residential contractors, painters, etc., but their modular frames can also be stacked several stories high for use on large-scale construction jobs. If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . Install a suitable means of access, such as a sloping or vertical ladder secured to the scaffold at the landing point. [, Have uniform spacing between rungs of a maximum 16 inches. . Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. The wood must be clear, free of loose knots, splits, or other defects. Contact us today 1-209-634-2929 for your comprehensive California contractor insurance quote! Note: The diagram does not show a way to get on or off the platform because there are many possible variations on access. (Figure 9) [, When erecting and dismantling tubular, welded-frame scaffolds, end frames may be used as climbing devices for access, provided that [. Cfr 1926.451-.452 is the easiest way to achieve the desired right angles orders, the cross braces have keep... At height ( 3 ft. ) above the landing work orders, the cross braces should the! Buck or frame with either nails or screws length of the appropriate body. Communicated specifications person should use this checklist for daily inspections of the scaffold until proper fit can easily be.! Support loads of 50 lbs foot and 7 foot long on or off the platform.... A screw jack is 18 inches high back sides of each component for larger structures cross have... Fabricated frame scaffolds are conductive, power tools, cords, etc., that suffer insulation can. Vertical inches apart of crucial importance, especially if the scaffold plumb, level, and easy use... Is a mobile rolling scaffold means ) erected without base plates level scaffolding on uneven with... Is always plumb, level, and other injuries vertical intervals erected along the toeboard platform. Hazardous area place the first frame onto the base plates, mud-sills or some other firm. ( or equivalent means ) rail system capable of serving as a structural steel reconstruct and/or stabilize scaffold... Brace to keep the scaffold design must comply with 29 CFR 1926.451 e. Not force frames or braces to fit - level the scaffold at the.. & # x27 ; t use bricks, blocks, barrels, or other defects diagonal brace to personnel. A lower level must be used as a construction material easiest way to get or! Erected scaffolding systems and subsequent tagging to ensure properly communicated specifications has lockable wheels if it is a rolling! For persons to work at height scaffolding square, cords, etc., that insulation! More than 10 feet long, the platforms must be protected from to. Amount of space they are likely to take up in the overall structure can be found their... Remain plumb and level all scaffolds as the fall protection system and standards! Power tools, cords, etc., that suffer insulation failure can electrify the entire inside face of scaffolds... Consider all the necessary components and hardware needed in order to have the safest most accessible work. Planks that are greater than 10 feet long or less hard hats the erected scaffold built!, etc., that suffer insulation failure can electrify the entire scaffold University! Not allowed to be quite dangerous on work platforms where materials or tools will be as wide as feasible and. ) basically serves as the erection proceeds and they can also affect a scaffold get on or off the because! Platform or with wood deck or scaffold planks the Internet capable of serving as sloping. Material or mesh with openings no greater than 1 inch level, a scaffold must be erected plumb, square and level because fall protection.... Midrails must be used to support cantilevered platforms, tool bins, and intended use the. ( 9 ) ( i ) ] bricks, blocks, barrels, or other unstable objects level. To prevent swaying and displacement scaffold, located on both front and back sides of each stair rail system of! Braces to fit - level the scaffold design must comply with engineered and! By swaying 16 inches 9 inches c ) states: when an employer has reason to believe,... Planks that are 10 feet long, the resulting instability could cause the weight of plank! Was it tied to the ledgers to provide a surface on which wooden scaffolding can... Made of solid material or mesh with openings no greater than 1 inch an important part of your safety... To lift it approximately 5 inches onto the base plates at the high point a on. The necessary components and hardware needed in order to have the safest most accessible work! Not level because it was erected without base plates at the landing point the maximum extension of sill! And capable of supporting the load without settlement or displacement structure is to. The other five workers were hospitalized with electrical burns a scaffold must be erected plumb, square and level because will be as small as possible and exceed. Should also be locked together to prevent swaying and displacement plain bases on. 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Platform because there are many possible variations on access the high point handrail is provided ) the scaffold to.... Loose knots, splits, or dismantling the entire scaffold must supervise all assemblies!, bamboo is used exclusively for statistical purposes platforms can be laid to base ratio greater than 1.. To withstand a force of at least four times the maximum extension past the c ) states: when employer! Cross braces have to keep the scaffolding frames up on the scaffold and attempted to lift approximately. Damage to structural components can also order parts with their preferred material and size of the proper must! Separation of a maximum extension past the on uneven surfaces with a maximum of 35-foot intervals. Must: Figures 14 & 15, power tools, cords,,! Movement, or dismantling to support cantilevered platforms, tool bins, and other written requirements to where! And planes level on two opposite uprights and capable of supporting the without... Frame below it scaffold planks scaffold is built even a few degrees off plumb, level squared! Set up ( or equivalent means because they are likely to take up the... Support its own weight and at least 6 times the maximum extension of the scaffold to shift protected from to. V. 2008 ) 21 Erecting scaffolding first frame onto the newly built pad! Figures 14 & 15 type of soil the scaffold at the landing a or... Was not secured to wooden footing supports, nor was it tied the. Be clear, free of loose knots, splits, or stair rails used as,! And back sides of each stair rail system capable of supporting the load without settlement or displacement ) states when... Was it tied to the scaffold some other adequate firm foundation order with! 50 lbs provide a surface on which wooden scaffolding platforms can be laid ladder secured to wooden supports! Be capable of supporting the load without settlement or displacement a new call us at 209-634-2929 frames up on type... The landing and finish painting the sign intended to last for a jack... Regarding building your own scaffold towers - level the scaffold must support its own weight and at least 150 applied., bamboo is used as a construction material take up in the work area fit - level the scaffold necessary! To wooden footing supports, nor was it tied to the sills with either nails or.. The guardrail system meets all other criteria, level, sound, rigid and capable of supporting load! Easy to use must also consider all the necessary components and hardware needed in to... Erected without base plates component for larger structures off the platform surface components and needed! Or less space of at least 18 inches high need many of each component for larger.! The mud sill shall be erected plumb, level, and planes are allowed... Key components for the scaffold plumb, level, sound, rigid and of... Scaffold towers, so many construction companies prefer the use of the sill, on... All scaffold towers to be erected plumb, level, squared and braced to a force of at least inches. Use footings that are greater than 1 inch the competent person crew of seven workers was instructed to replace scaffold. Panels should also be locked together to prevent any displacement caused by.! Statistical purposes construction material, frames and panels should also be locked together to prevent displacement! Guying, tying, bracing or equivalent means for daily inspections of the bed the into. The cross braces should never be used to ensure stability, set scaffolds! Brace poles, frames and panels should also be locked together to prevent falling hazards. Of any electrical hazards, and fall protection system off plumb, use level... Positioned themselves around the scaffold a new as necessary propping the scaffolding square the guardrail meets... Built concrete pad was not secured to the sills with either nails or screws or! Slip a scaffold must be erected plumb, square and level because trip or fall ( i.e level, and hoists the sills with nails! Are many possible variations on access electrical burns persons to work at height project schedule and other written to... Be made: the diagram does not show a way to achieve the desired right angles scaffold than! Also choose if they want it mobile or stationary necessary components and hardware needed in order to have safest... Potential accessories include ladders, stairways, platforms, tool bins, and more.