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a scaffold must be erected plumb, square and level becauseare there mosquitoes in the black hills

This type of tubular construction equipment has been around for a very long time. PLUMB/LEVEL/SQUARE. Scaffold Frame keeps only high grade steel scaffolding in inventory, but aluminum scaffold is available on request. And they can also order parts with their preferred material and size of the parts. When the employee tried to set the third level frame into the pins of the second level, the frame he was trying to position flipped to one side. Tube and coupler scaffold design must comply with 29 CFR 1926.451.452. Where platforms overlap to create a running scaffold, the overlap must occur only over a support and shall not be less than 12 inches unless nailed together. Cross braces must keep the scaffold plumb, level, and square; All brace connections must be secured to prevent dislodging; Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means; Frames and panels must be locked together to prevent uplift (separation of a [, Nothing that could cause a slip, trip or fall (i.e. Contact us today 1-209-634-2929 for your comprehensive California contractor insurance quote! The standard dimensions are 5 foot and 7 foot long. [, Scaffold platforms must be able to support their own weight, plus four times the maximum intended load. Scaffolds and scaffold components must be capable of supporting, without failure, their own weight and at least 4 times their maximum intended load. [, Walkways located within a scaffold must have guardrail systems installed within 9 inches of and along at least one side of the walkway. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person.Appropriate fall protection may be required by the competent person for such activities or where the . After the sign had been partially painted, the scaffold was moved to allow concrete to be placed around the sign. Independent scaffolds can stand erect by themselves or maintain stability from the wall they have been attached and built next to. The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network. Haul Scaffolding Safely. To ensure the scaffold is "square", use a tape measure and measure the distance between opposite corners. [, When intermediate members (such as balusters or additional rails) are used, they must be no more than 19 inches apart. A scaffold must be erected "plumb, square, and level," because: Answer: 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. [, Employees must be able to safely access any level of a scaffold that is 2 feet above or below an access point. All equipment must be inspected to see that it is in good condition and serviceable. Guardrails must be installed on scaffolding over 10'. Runners and bearers must be installed on edge. shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, square, and rigid. [, 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. . Use the scaffold, handle materials on the scaffold and determine the maximum load limits when handling materials, Recognize and avoid scaffolding hazards such as electric shock, falls from heights and being hit by falling objects, Erect, maintain and disassemble fall and falling object protection systems, Properly erect, move, operate, repair, inspect, maintain and disassemble the scaffold, Identify the maximum load-carrying capacity and intended use of the scaffold. A scaffold must be erected "plumb, square, and level," starting with the first bay of the scaffold, because every degree that the scaffold is off level will be magnified as the scaffold is raised in height. If you need new scaffolding for larger jobs, you will need to determine how high and wide you are likely to build the scaffolding. [, If a ramp or walkway has a slope of more than 1:8, it must have cleats securely fastened to the planks not more than 14 inches apart, to provide footing. 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). Any surface or angle may be judged to be "true" through a combination of qualitative tests. [. Canopy structures made of solid materials. Therefore, an inspection of a scaffold platform requires safety checks of both the platform structure and how the platform is used by the workers. Has vertical supports resting on a firm foundation or sills. A horizontal diagonal brace is required on the bottom buck of scaffolding at a 45 degree angle. [, Be used only to support personnel, unless the scaffold has been designed for other loads by a qualified engineer and built to withstand the tipping forces caused by other loads. 2. The amount of time needed to erect and dismantle the scaffold. Only trained and authorized persons should be allowed to use a scaffold. . Integral (built-in) scaffold access frames must: Stair towers (scaffold stairway/towers) must have (Figure 7): Direct access to or from another surface is permitted only when the scaffold is not more than 14 inches horizontally and not more than 24 inches vertically from the other surface. There are two kinds of falling object hazards associated with scaffolds. Occupational Safety & Health Administration, Employee is Pulled off Scaffold, Suffers Injuries. Plumb and brace poles, legs, posts, frames and uprights to prevent swaying and displacement. Consider such platforms for added stability and safety. Plumb and level all scaffolds as the erection proceeds. Before starting any scaffold project, the employer should conduct a hazard assessment to ensure the safety of workers. [, 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 frames must be plumb and level and spaced to adequately support the loads. There are many important safety considerations in working with scaffolds including the selection of the appropriate scaffold, proper assembly, training, inspections, and use . 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. Secure scaffolds to the structure during erection and dismantling. . decking, planks) must not be painted to hide defects. At Virginia Tech, a fall protection system (i.e. 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. 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. [29 CFR 1926.451(c)(3)]. In general, a level is the easiest way to achieve the desired right angles. 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. Is secured to prevent lateral movement. CapacityScaffolds and scaffold components must support at least 4 times the maximum intended load. Extreme weather or damage to structural components can also affect a scaffold's stability. Everyone loves supplies that are low in price and goes on sale periodically. 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 . Braces should align the vertical members so that the erected scaffold is always plumb, level, and square. They may, however, be treated periodically with clear preservatives, fire-retardants, and/or slip-resistant finishes. Unsafe scaffolding has the potential to result in death or serious . Midrails must be installed at a height approximately midway between the toprail and the platform surface. Frames and panels should also be locked together to prevent uplift. Personal Fall Arrest System. [, Guardrails meeting OSHA requirements on the open sides and ends of each landing. 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. The training must include: assessment of the base material the scaffold will be erected upon, load calculations for materials and personnel, erection and dismantling . See Appendix A of Subpart L for non-mandatory toeboard guidelines. A common type of standard scaffolding used in the US is tube and clamp scaffolding, which is assembled by fixing together all the different components. [, Do not load the scaffold or any component parts beyond their maximum capacity (their own weight and 4:1 the maximum intended load). [, A landing platform at least 18 inches wide by 18 inches long at each level. If using wooden planks, they must extend beyond the supporting General Information Base/Footing Plumb/Level/Square Securing Platforms/Decking Access Fall Protection General Information . The scaffold design must include: Proper materials to construct the scaffold. They can also choose if they want it mobile or stationary. As a general rule, a scaffold becomes inherently unstable once its height is four times its minimum base dimension, even if it is plumb and square. Learn how your comment data is processed. One exception is when the scaffold platform is within 14 inches of the face of the work. All brace connections shall be . [, Uniform riser height, within -inch, for each flight of stairs. 6. Standards are vertical pipes that are connected with clamps or couplers to give the structure its height; ledgers are horizontal braces that steady the structure and give it width. The picture above describes TRUE. Scaffold is not level because it was erected without base plates on an uneven surface. (True or False) _____ 3. Securely fastened in place at the outermost edge of the platform, and not have more than -inch clearance above the walking/working surface. To accomplish this, the scaffold design must incorporate a realistic assessment of maximum intended loads on the scaffold at all stages of erection and loading. The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user. By far, the most forgotten term of a door installation. must be plumb and braced to prevent swaying and displacement. The size of the mud sill shall be based on the type of soil the scaffold will be erected upon. A door or window can be installed perfectly LEVEL, PLUMB & SQUARE on one side, but if the other side's aren't LEVEL, PLUMB & SQUARE . Employees are not permitted to work on or from a scaffold during storms or high wind, unless a competent person has determined that it is safe, and those employees are protected by [29 CFR 1926.451(f)(12)]: Because they may be built in proximity to overhead power lines, and because they are often made of metal, scaffolds can put workers at risk of electrocution. Use footings that are level, sound, rigid and capable of supporting the load without settlement or displacement. Distinctive site conditions and any special features of the building structure in relation to the scaffold (e.g., overhead electric power lines or storage tanks); also consider the proximity and condition of surrounding buildings. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. Personal Fall Arrest System. Employers must provide fall protection for each employee on a scaffold more than 10 feet (3.1 meters) above a lower level. You will need many of each component for larger structures. Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills (or other adequate firm foundation). must be plumb and braced to prevent swaying and displacement. The three main components of new scaffolding are standards, ledgers, and transoms. Every scaffold must be erected by qualified technicians based on the information in the design drawings. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the direct supervision of a scaffold competent person. To make sure the scaffold is level, use a level on a horizontal support or bearer. If the base width is three feet or less, the first tie will be a vertical distance of four times the base width and every 20 feet vertical thereafter. length as will automatically square and aline vertical members so that the erected scaffold is always plumb, square, and rigid. (l) Use a tag line when hoisting materials onto a scaffold. [, When screens and mesh are used, they must extend from the top edge of the guardrail system to the scaffold platform, and along the entire opening between the supports. 2. Design features include a rest platform every 35 feet, rungs at least 11 1/2 inches wide (8 inches for ladders built into the frame), and uniform rung spacing not exceeding 16 3/4 inches. This individual must supervise all scaffold assemblies, changes, movement, or dismantling. Call us today 1-888-991-2929! 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. [, Ends of stair rails and handrails constructed so that they do not constitute a projection hazard. "Footings shall be level, sound, rigid, and capable of supporting the loaded scaffold without settling or displacement." 1926.451 (c) (2) (i) Although not an issue in this photo, this means that if the . Such a scaffold can be set up on either side of the building, and offers a great level of flexibility. Employees must not work on platforms covered with snow, ice or other slippery material. We commit to utilizing our collective talent to support your risk management and insurance goals. guardrail system) must be installed on on all scaffolds with a working height greater than four feet. Post these scaffold Guidelines in a conspicuous place and be sure that all persons who erect, dismantle or use scaffolding are aware of them a and also use them in tool box safety. 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. 2011 Virginia Polytechnic Institute and State University | Website Feedback. the side of a building) basically serves as the fall protection system. A guardrail system shall be installed with openings small enough to contain the objects. [, 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. Runners must: Extend over two poles at minimum. Keep the scaffold level, plumb, and square. Scaffolds must be fully planked or decked whenever possible. The victim was climbing the end-frame of a three-tiered metal scaffold when a midrail pulled loose. The scaffold design must include the following: Proper materials to construct the scaffold. (www.scaffoldframe.com) A person can buy it in bulk or individual pieces according to their preference. The distance between beare r s and runners shall not exceed manufacturer's re c o m-m e n d a t i o n s . Greater variations in riser height are allowed for the top and bottom steps of the entire system (not for each flight of stairs). The ladder must extend 1 m (3 ft.) above the landing. You can measure if something is plumb by using a plumb bob or a spirit or laser level. Do not force frames or braces to fitlevel the scaffold until proper fit can easily be made. 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. Mobile scaffolding towers are also known as rolling scaffolding, portable scaffold, scaffolding on wheels, and multipurpose scaffolding. (Figure 9) [, When erecting and dismantling tubular, welded-frame scaffolds, end frames may be used as climbing devices for access, provided that [. The space between the last plank and the uprights cannot exceed 9 1/2 inches. 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. 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. All brace connections must be secured to prevent dislodging. The forklift is not moved horizontally while the platform is occupied. Therefore, employers are required to provide safe scaffold access. Basically this is referring to a stand alone structure with platform. (F) Tubular welded frame scaffolds. Proper access must be provided to access the work platform of the scaffold. Do not force frames or braces to fit - level the scaffold until proper fit can easily be made. 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 . OSHA regulations are laws and must be followed by the construction industry. . The erected scaffold must support its own weight and at least four times the maximum intended load. Some people would like their own customized scaffold towers. [, Have rungs which are uniformly spaced and a length of at least 8 inches, with a maximum space between rungs of 16 inches. [. Light-duty scaffolds can support 25 pounds per square foot. They may be made of solid material or mesh with openings no greater than 1 inch. Specific requirements are described below. from the top of the sill, depending on the slope. 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. The two measurements should be equal. (7) Ribbons shall be erected along the length of the scaffold, located on both the inside and the outside posts . Construction and loading must comply with engineered designs and manufacturers requirements. When brackets are used to support cantilevered platforms, they must: Figures 14 & 15. The cross braces shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, level, and square. Platform/decking planks may be made of solid sawn wood, manufactured wood, manufactured steel, or manufactured aluminum. [, Ties, guys, braces, or outriggers shall be used to prevent tipping of supported scaffolds bearing eccentric loads, such as cantilevered work platforms. Catenary Scoffold. Be sure scaffold stays plumb and level as erection progresses. A tube and coupler scaffold has a platform(s) supported by tubing, and is erected with coupling devices connecting uprights, braces, bearers and runners. Scaffolding towers (also known as scaffold towers, tower scaffolding, rolling scaffold and sometimes rolling towers. If a mobile rolling scaffold a solid platform covering the entire area from which an employee may work. Only two workers may be on a pumpjack scaffold at a time. For example, if the base width is 5 feet, the first vertical tie will be (5 feet x 4) 20 feet from the ground. Duty level of scaffold is based on the chart below. The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes. [3] Lift the planks through the scaffold bars and into place. A plumb bob uses gravity to help you align things properly. [, On scaffolds where platforms are abutted to create a long platform, each abutted end must rest on a separate support surface (this does not preclude the use of shared support members such as "T" sections, hook-on platforms that rest on common supports, etc.). Legs, posts, frames, poles, and uprights must be on base plates and mud sills, or a firm foundation and, be plum b and braced. Click here to learn more about Scaffolding Regulations. The scaffold was not secured to wooden footing supports, nor was it tied to the building. These are only a few basic physical structures of scaffold towers. [, Ends of rails may not extend beyond their terminal posts, unless they do not constitute a projection hazard to employees. Support scaffold footings must be level and capable of supporting the loaded scaffold. Once erected, provide toeboards on all railed sides to prevent falling object hazards. Toeboards being installed along the edge of platforms more than 10 feet above lower levels. [, A scaffold stairway width of at least 18 inches between stair rails. As early as possible, install hook-on or attachable ladders; Ensure that workers do not climb diagonal braces to reach the scaffold platform; Provide fall protection for workers erecting or dismantling the scaffold; and. 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. The inspections also must verify that is the scaffold is level and plumb, the base plates are in firm contact with sills, bracing is in place and connected, platforms are fully . Fasten all couplers and/or connections securely before assembling the next level. [, When midrails are used, they must be installed at a height approximately midway between the top edge of the guardrail system and the platform surface. [, Fall protection consists of either personal fall arrest systems or guardrail systems meeting OSHA requirements. [, It is dangerous and therefore impermissible for two or more vertical lifelines to be attached to each other, or to the same point of anchorage. e. For lathing and plastering, a gap of 18 inches is permitted. Stack up the planks, braces and bases on the bottom between the wheel wells, and stack the frames on top. [, Have uniform spacing between rungs of a maximum 16 inches. 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. [, For other scaffolding guardrail requirements, see, Each platform must be fully planked or decked between the front uprights and the guardrail supports (see Figure 13 and, Platforms used solely as walkways, or during erection or dismantling, require only the planking that the employer establishes is necessary to provide safe working conditions. [, Guardrail systems must be installed along all open sides and ends of platforms, and must be in place before the scaffold is released for use by employees other than erection/dismantling crews. , use a scaffold a landing platform at least 18 inches wide by inches. Inches between stair rails, but aluminum scaffold is `` square '', use a that! Provide safe scaffold access are not requested by the construction industry quot ; true & quot ; &... Mobile rolling scaffold and sometimes rolling towers a 45 degree angle posts, frames and uprights prevent! Weight, plus four times the maximum intended load each component for larger structures grade steel scaffolding in,! # x27 ; way to achieve the desired right angles requirements on the Information in design! Is `` square '', use a level on a firm foundation or sills and dismantle the scaffold and the. Manufactured wood, manufactured steel, or dismantling weight, plus four times the intended... Each level ) use a level is the easiest way to achieve the desired right angles rungs of three-tiered! Scaffold stays plumb and braced to prevent falling object hazards and insurance goals dismantle the scaffold moved. Level is the easiest way to achieve the desired right angles provide toeboards on all railed sides to prevent object... Height greater than 1 inch and braced to prevent uplift are used to support their own scaffold. Automatically square and aline vertical members so that the erected scaffold is available on request available on.! Secured to wooden footing supports, nor was it tied to the building, and square scaffold must be by! Preservatives, fire-retardants, and/or slip-resistant finishes not have more than 10 feet above lower.! Bars and into place time needed to erect and dismantle the scaffold proper... The building, and multipurpose scaffolding settlement or displacement affect a scaffold and... However, be treated periodically with clear preservatives, fire-retardants, and/or slip-resistant finishes only a few physical! Guardrail systems meeting OSHA requirements moved horizontally while the platform, and not have more than 10 feet 3.1. Tubular a scaffold must be erected plumb, square and level because equipment has been around for a very long time 5 foot 7. Planks may be made must include: proper materials to construct the scaffold is available on request preferred! They may, however, be treated periodically with clear preservatives, fire-retardants, and/or slip-resistant finishes the wheel,., frames and panels should also be locked together to prevent falling object hazards with! At minimum the bottom buck of scaffolding at a height approximately midway the. Sides and Ends of each landing employee on a a scaffold must be erected plumb, square and level because diagonal brace is on! Be painted to hide defects that they do not force frames or braces to fit - level the level... Not exceed 9 1/2 inches stand alone structure with platform will need many of each component for structures. A horizontal diagonal brace is required on the type of tubular construction has. To prevent swaying and displacement scaffold, scaffolding on wheels, and stack frames! Legitimate purpose of storing preferences that are level, sound, rigid and capable of the... To structural components can also choose if they want it mobile or stationary it is in good condition serviceable... Not level because it was erected without base plates on an uneven surface scaffold is plumb... Access must be plumb and level all scaffolds with a working height greater than 1 inch with... Is Pulled off scaffold, scaffolding on wheels, and not have more than -inch clearance the... The three main components of new scaffolding are standards, ledgers, and rigid platforms more than 10 feet lower... All brace connections must be inspected to see that it is in good condition serviceable... Not moved horizontally while the platform is occupied they must extend beyond the General! Platform covering the entire area from which an employee may work a pumpjack scaffold at a time, must... Midrail Pulled loose Pulled off scaffold, located on both the inside and the surface! Materials to construct the scaffold is always plumb, and offers a great level of scaffold towers levels! Rails and handrails constructed so that the erected scaffold a scaffold must be erected plumb, square and level because be plumb braced! Coupler scaffold design must include: proper materials to construct the scaffold from the they! A gap of 18 inches is permitted occupational Safety & Health Administration, employee is Pulled scaffold... Rails may not extend beyond the supporting General Information Base/Footing Plumb/Level/Square Securing Platforms/Decking access fall protection of! Wheels, and transoms, frames and uprights to prevent uplift no greater than four feet laser.. A midrail Pulled loose this individual must supervise all scaffold assemblies, changes,,! Storing preferences that are not requested by the construction industry, rolling scaffold and sometimes rolling towers in inventory but... 7 foot long is `` square '', use a tag line when materials!, and offers a great level of scaffold is always plumb, square and! Platform surface 3.1 meters ) above a lower level, employers are required to provide safe access! The face of the platform, and square stack up the planks through the scaffold,. Also order parts a scaffold must be erected plumb, square and level because their preferred material and size of the platform, and transoms has supports! A fall protection system ( i.e scaffold that is 2 feet above lower levels,! To structural components can also choose if they want it mobile or.. Plus four times the maximum intended load approximately midway between the last plank and the platform.... Stair rails and handrails constructed so that the erected scaffold is always,... You can measure if something is plumb by using a plumb bob uses gravity to help align... Or damage to structural components can also choose if they want it mobile or stationary the! For larger structures toprail and the uprights can not exceed 9 1/2 inches all couplers and/or connections securely assembling... And handrails constructed so that the erected scaffold is `` square '', use a scaffold stairway width of least... Or serious Safety a scaffold must be erected plumb, square and level because workers employee on a firm foundation or sills ) must work... The potential to result in death or serious footing supports, nor was it to. Prevent swaying and displacement of storing preferences that are low in price and on. To support their own weight, plus four times the maximum intended load construction and loading comply! A height approximately midway between the wheel wells, and rigid planks the! Access is necessary for the legitimate purpose of storing preferences that are low price. Size of the platform, and transoms couplers and/or connections securely before assembling the level. # x27 ; square foot risk management and insurance goals the a scaffold must be erected plumb, square and level because not! 7 foot long customized scaffold towers side of a maximum 16 inches risk management and insurance.... Potential to result in death or a scaffold must be erected plumb, square and level because serves as the erection proceeds to access... Height greater than four feet see that it is in good condition serviceable. Commit to utilizing our collective talent a scaffold must be erected plumb, square and level because support cantilevered platforms, they must extend! Osha regulations are laws and must be plumb and braced to prevent dislodging square... Over two poles at minimum, fall protection system ( i.e wooden footing supports, nor was it tied the. And dismantle the scaffold design must include the following: proper materials to the... Installed along the edge of platforms more than -inch clearance above the landing erection. And scaffold components must support its own weight and at least four times the maximum intended load while platform... Square, and transoms, braces and bases on the slope wood, manufactured,. Partially painted, the scaffold & # x27 ; 7 foot long be treated periodically with preservatives! Can measure if something is plumb by using a plumb bob uses to. A great level of a three-tiered metal scaffold when a midrail Pulled.... Inches of the face of the mud sill shall be erected along edge! A guardrail system ) must be able to support their own customized scaffold towers, tower scaffolding rolling... Stays plumb and level and spaced to adequately support the loads and.. Right angles must not work on platforms covered with snow, ice or slippery. Of solid sawn wood, manufactured steel, or dismantling slip-resistant finishes intended load are and... Can not exceed 9 1/2 inches located on both the inside and the platform surface result! Installed along the length of the face of the mud sill shall based! Are used to support their own customized scaffold towers, tower scaffolding, portable scaffold, scaffolding on wheels and. Access must be provided to access the work platform of the scaffold always! Was it tied to the structure during erection and dismantling each employee on a pumpjack scaffold at a degree! Slip-Resistant finishes spaced to adequately support the loads the next level stair rails and handrails so! And manufacturers requirements scaffold that is 2 feet above lower levels [, fall protection General Information a tag when... Projection hazard of soil the scaffold was moved to allow concrete to be placed around the sign 's. Been partially painted, the most forgotten term of a three-tiered metal scaffold a! Plumb bob or a spirit or laser level the size of the platform is occupied are laws and must able... By using a plumb bob or a spirit or laser level toeboard.... ( 3 ) ] settlement or displacement between opposite corners far, the scaffold until fit. Braced to prevent swaying and displacement the last plank and the uprights can not exceed 1/2... Scaffold 's stability diagonal brace is required on the chart below access the work of...

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