— In these situations each plank should overlap the next one by at least 12 inches. These contractors are increasing safety margins by exceeding the minimum requirements of the OSHA standards. The standard does not specify whether both ends of each plank must overlap the same way. The amount of weight the scaffold will be required to hold including the weight of the scaffold itself, materials, and workers must be considered. K. Doyle Taylor Plank has a long split and unable to bear load. Cross Braces should not be used as a way to climb the scaffold. Therefore, both … Planks and platforms consistently rank in the top 10 list of most frequently cited violations of standards. stairs for workers to use. Overlapped planks When you overlap planks to make a long platform, they must overlap at least 12 inches over the supports unless they are nailed together or restrained so they won’t move. Cross Braces should not be used as a way to climb the scaffold. all scaffold pins must be in place prior to using a scaffold. A scaffold that is erected but not immediately put into service, or not used for more than 21 consecutive calendar days, must be tagged with a red tag until inspected by a competent worker. Always at least 20,000 planks … (1) Except as provided in paragraphs (a)(2), (a)(3), (a)(4), (a)(5) and (g) of this section, each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or transmitted to it. See 1926.451(b)(7). Properly constructed scaffold. Top rail shall be at least 36 inches to a maximum of 45 inches. Power lines: Keep scaffolds 10 feet or more from power lines (or 3 feet, if lines are less than 300volts), unless you are sure the power lines are de-energized. B. The OSHA Construction Industry standards require that all scaffold components, including plank, have at least a 4 to 1 safety factor. The maximum distance permitted between a plank and a frame upright is nine inches. are not permitted to remain in service, because it is impossible to determine their condition. 132 An employer shall ensure that a wood plank in a scaffold (a) is at least 50 mm thick by 250 mm wide, (b) has a span not longer than 3 m, (c) extends at least 150 mm and not more than 300 mm beyond a supporting member, and (d) is laid flat with an overlap of 300 mm with another plank, with the centre of the overlap directly over a bearer. When overlapping OSHA planks on a scaffold frame what is the minimum and maximum overlap required? as scaffold plank. POLE SCAFFOLD CONSTRUCTION. Scaffolds must be erected with: Fully planked platforms (no holes or gaps) Specially designed, scaffold-grade planks; Base plates or sills under each leg; Feet (minimum of 4” x 4”) or adjustable jacks; Proper access, e.g., ladders; Guardrails, midrails, and toe boards as needed. Failure to install all the required components such as baseplates, fittings, and fasteners. Your boards must meet strict OSHA standards before they can be used on your project. Like the current standard, the 1975 standard did not address this issue (section 1926.451(a)(12), stated simply that "all planking of platforms shall be overlapped (minimum 12 inches), or secured from movement"). Scaffold components cannot be mixed if they are from different manufact… Platforms and walkways, in general, must be at least 18 inches wide. Each end of each plank must overlap its support by a minimum of 6 in. — Platforms should normally lay across the scaffold putlogs at right angles. Secure plank to scaffold when necessary. The progressively proper sequence of installation like pins, bracings, anchorings etc. OSHA requires that this is done in one of two ways. 4. STI CP Manual Section 04 Page 5. graded as scaffold plank or with fabricated platforms or planks in good condition. c. Single-span planks must be cleated at both ends to prevent planks from sliding off their supports, or, must 5. • Scaffold planks must be positioned so that no single gap between planks exceeds 25 mm and the total gap between all planks does not exceed 50 mm. Ensure the scaffold has not been compromised by snow or ice conditions. platform requirements. Tesla will come to India in early 2021, says Union Minister... UltraTech Cement considers raising Rs 1,000 crore via NCDs. Each end of each plank must overlap its … The OSHA approved laminated planks must have a 6" minimum and 12" maximum overlap. The other option is to erect barricades that physically prevent individuals from walking under work platforms. Construction grade lumber is only 2/3 the strength of OSHA grade scaffolding … If scaffold planks are uncleated or otherwise unsecured, they can easily slide off. Moving restrictions. Scaffold Platform Construction . 6'' to 12'' To be used for scaffold plank, solid-sawn lumber must be scaf-fold grade, nominal 2x10 inches ( 1 1⁄ 2 x 9 1⁄4 or 11⁄2 x 9 1⁄ 2 inches) or larg e r. Among the wood species used for solid-sawn scaffold plank, South-e r n yellow pine and Douglas fir are a p p r oved for the longest spans and heaviest loads. Custom lengths are available on request. • Scaffold planks must be positioned so that no single gap between planks … Planks used for each platform must adhere to the same weight capacity as the scaffolding itself. a. Scaffold plank must have at least 12” of overlap and shall extend not less than 6” nor more than 12” beyond the centers of their end supports (bearers). Planks are at least 1.2 metres in length Timber is lapped over metal planks Standards are in place that stops planks from moving sideways The plank overlap, past the edge of the plank underneath, is at least 300mm. Beyond having a qualified person overseeing the design, it’s important to closely exam the worksite to ensure that workers will be able to do their jobs safely during all phases of scaffolding assembly, use and disassembly. Your question is whether both ways are acceptable. The space between planks cannot exceed 1 inch, except where necessary for obstructions. be individual scaffold grade wood planks, fabricated scaffold platforms. Note: This does not refer to overlap of planks on putlogs. The maximum extension of the plank cannot be more than 18 inches for planks that are >10 feet long. Planks must be scaffold grade and free of cracks which could affect their load capacity. In the diagram that you sent to our office, you show two ways of installing end-to-end rows of scaffolding planks. Must be Scaffold Grade Planks or equivalent. A ledger must be long enough to extend over two pole spaces, and it must overlap the poles at the ends by at least 4 inches. The lower ends of poles must not bear directly on a natural earth surface. On scaffolds where planks are laid end to end (or abutted) without overlapping, each end must rest on its own support, known as a "putlog." During a telephone conversation, you indicated that you believed that a variance issued on April 4, 1975, for tank scaffolds discussed how scaffold planks should be overlapped, as per your first question. Safety Coordinator Therefore, both methods are acceptable ways of overlapping planks. Loads on planks must be evenly distributed and not exceed the allowable loads for type of plank being used. 3. St. Louis, MO 63118-1852, RE: Subpart "L" - Tank Scaffolding; methods of overlapping scaffold planking. C. and overlap each other by at least 12 in. Place and secure the horizontal runners and bearers by driving the wedge as previously described. A. 8 foot planks on 7 foot spans must be cleated. 13.50 Scaffold planks or decking used as a work platform on a tower or rolling scaffold must have means to keep the planks on the bearers. This section does not apply to aerial lifts, the criteria for which are set out exclusively in § 1926.453. Platforms and … is required whenever there is 24” vertical change to an upper or lower level. Additionally, each platform must measure at least 18 inches wide. — Sometimes this is hard to do, especially when the scaffold changes direction or turns a corner. OSHA’s standards represent the minimum level of protection; many general contractors require 100% fall protection at 6’ or greater when working on scaffolds. Inspect and check after the erection daily while in use. The scaffold distance between an insulated 220-volt line must be at least three feet. Spur scaffold . Primarily, it “must be able to support, without failure, its own weight and at least four times the intended load.” Secondly, when fully loaded, the plank cannot deflect more than 1⁄ 60 of the span. (a) Capacity. If you weigh 150 pounds, the plank you’re standing on must hold 4 times 150 pounds or 4600 pounds. Platforms fully planked or decked. If 6 m or more in height, providing a continuous access stairway. Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. d. Each plank on a continuous run scaffold must extend over its supports by at least 6 in. True. Despite this, these planks do not need to be secured when the following conditions are met: Timber is lapped over metal planks; The plank overlap (past the edge of the plank below) is greater than 300mm Note that our enforcement guidance may be affected by changes to OSHA rules. c. Each end of each platform 10 ft. long or less Material shall not be allowed to accumulate to the extent that a scaffold is subjected to loading it is not designed to support. It is usually a modular system of metal pipes or tubes, although it can be from other materials too. Do NOT use objects (ladders, boxes, barrels, etc.) An uncleated scaffold planks must extend over the end to support a minimum of six inches. No scaffold shall be erected, moved, dismantled, or altered except under the supervision of competent persons. Section 1926.451(b)(7) states, "on scaffolds where platforms are overlapped to create a long platform, the overlap shall occur only over supports, and shall not be less than 12 inches (30 cm) unless the platforms are nailed together or otherwise restrained to prevent movement." False. In one drawing, the planks are laid so that one end of each plank is on the bottom of an overlap and the other end is on the top of an overlap (using this method the planks are slightly tilted). The space between the last plank and the uprights cannot exceed 9 ½ inches. Planks must be able to support significant loads on the weakest dimension for load bearing. A range of people have specific responsibilities for scaffolds and scaffolding including, designers, scaffolding contractors and workers who carry out scaffolding. Work platforms and walkways must be at least 18 in. Make sure the scaffold rests on a firm foundation. Each end of each plank must overlap its support by a minimum of 6 in. decking, planks) must not be painted to hide defects . On a 10-section wide frame scaffold, the overlap for each plank on top of each other must be 12 inches. All poles must be setup perfectly plumb. The standard does not specify whether both ends of each plank must overlap the same way. Scaffolding must meet Australian Standards ... scaffolders can be exposed to fall hazards during the placement or removal of scaffold planks, from ... Is there a minimum 50mm overlap . Protect against possible washout or shifting of the soil due to varying weather conditions. a. Scaffold platforms must be fully planked or decked between the front upright and guardrail post. So what’s the big deal? Lack of proper access to the scaffold work platform is an additional reason for falls from scaffolds. by 10 in. A. Plank should not extend beyond the support by more than 18 inches. The space between the scaffold planks must be no more than one inch. • Each plank must overlap the support by a minimum of 6 inches or be cleated, i.e. A. Scaffold planks can also break if they are in poor condition or overloaded. 14. Platforms should reach as close to the uprights as possible, no more than one inch of space without barriers. DON’Ts for Scaffolding Safety in Construction. Ensure that adjoining planks are of uniform thickness for an even platform. Unsupported ends of scaffold planks must not project more than 12 inches past their support ledger. Scaffolds shall not be overloaded. Set two planks on the first wrap to make it easier to reach the fourth rosette up. The purpose of using pins to lock a scaffold vertically together is to prevent uplift. If using a metal scaffold, access must be provided from ground level. The maximum intended load of a 10-inch wide, two-inch nominal thickness wood scaffold plank platform with the scaffold frames seven feet apart horizontally is approximately 175 pounds. When hook on ladders is used, they must be provided with a rest platform every 35 feet. Work platforms and walkways must be at least 18 in. On a 10-section wide frame scaffold, the overlap for each plank on top of each other must be 12 inches. c. Single-span planks must be cleated at both ends to prevent planks from sliding off their supports, or, must be of a prefabricated type having end hooks to seat over bearers and Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. The second drawing shows the planks laid so that both ends of each plank are either on the bottom or the top of their respective overlaps (using this second methods each plank lays flat). Unless planks are nailed or otherwise restrained from movement, the overlap must be at least... 12 inches. wide. Mid rail strength on a welded frame scaffold must be at least 150 pounds. or be cleated. – Scaffold frame is covered from front to back – No more than 1” spacing between planks – No more than 10” space from backside of frame – Must bear on supports at least 6” •Cleat if planks move or cannot make minimum – For continuous runs, planks must overlap 12” Scaffold legs must bear on base plates and these shall rest on either firm foundation or mudsills. Safe usage of non-mobile welded frame scaffolding. If less than 6 m in height, providing a continuous access ladder or stairway. Falls are a major concern in scaffolding construction, these are attributed to the lack of guardrails, improper installation of guardrails and failure to use personal fall arrest systems when required. The poles on a job-built pole scaffold should not exceed 60 feet in height. * Using a horizontal frame separation distance of seven feet, the maximum plank extension over the end support shall be no more than 12 inches if guardrails are not used to block access to the area. Scaffold Safety: 4 Common Hazards and How to Reduce Exposure. Adjacent poles must not be spliced at the same level. be individual scaffold grade wood planks, fabricated scaffold platforms. For scaffold platform construction you must have all the following: A. Next, attach the diagonals. B. b. Secure plank to scaffold when necessary. Do not exceed more than four rosettes (6' 6") before you place this second wrap. All four sides should have diagonal bracing attached. by 10 in. Not more than 1-inch gaps. 13.51 (1) If the platform height exceeds 1 1/2 times the minimum base dimension of a rolling scaffold, a worker on the work platform must not move the scaffold. However, the scaffold standard for which that variance was issued is no longer in effect; a new scaffold standard was issued in September 1996. b. no more than 1 inch gap in between planks platforms solely used as a walkway do not need to be fully planked ... overlap 12'' unless nailed or restrained. The OSHA standard requires fall protection must be used when work heights reach 10’ or more. Section 1926.451(b)(7) states, "on scaffolds where platforms are overlapped to create a long platform, the overlap shall occur only over supports, and shall not be less than 12 inches (30 cm) unless the platforms are nailed together or otherwise restrained to prevent movement." 2. OSHA requirements are set by statute, standards and regulations. Sales Office 1705 South Evans St. Greenville, NC 27834 252-756-3862; Warehouse Address 1002 North Pitt St. Greenville, NC 27834 252-756-3862; Monday - Friday One Busch Place 3. It is important to know how to identify defects in planks. two (2) planks laid side by side, and must overlap their support ledger by not less than 6 inches. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov. Make sure the scaffold rests on a firm foundation. Make sure … Everyone in the workplace has work health and safety duties. After reviewing the variance and the scaffolding standard that was in effect in 1975, we have determined that the variance did not address this issue. Protect against possible washout or shifting of the soil due to varying weather conditions. Cross bracing is acceptable for mid rail if cross point is between 20” and 30” above the work platform. Since OSHA has never modified or revoked it, under section 6(d) of the Occupational Safety and Health Act, it is technically still in effect. a.Scaffold platforms and walkways must be at least 18 in. Cross bracing is acceptable in place of top rail when the ‘x’ is between 30 and 48 inches above the work surface. 3. e. Spans of 2 in. Platforms fully planked or decked. Wood scaffold planks must be nominal 2 x 10. Planks may overlap planks on straight runs on hanging bracket scaffolds—where butting of planks at a pair of brackets cannot be achieved—provided the overlap is at least 300 mm. Planks must be scaffold grade and free of cracks which could affect their load capacity. 3d view of road widener machine – Hydrog, supplied by Neha... 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A competent person is defined as one who is capable of identifying, existing, and predictable hazards in the surroundings or working conditions and who has the authorization to take prompt corrective action to eliminate them. The platform shall not deflect more that 1/60 of the span when loaded. Wood scaffold planks are typically 2x10 or 2x12 and vary in length depending on the work being performed. Scaffold grade with … It is therefore important to use proper grades of lumber and to inspect planks before erection to ensure that there are no weak areas, deterioration, or cracks. A scaffold five feet wide, 35 feet in length, and 30 feet high with frame spacing of seven feet must have horizontal securement … Foundation stability, placement of scaffold planks, distance from the scaffold to the work surface, and tie-in requirements are just a few of the other items that must be considered prior to build a scaffold. Fabricated scaffold planks and platforms unless cleated or restrained by hooks shall eXtend over their end supports not less than 6 inches nor more than 12 inches. Collapse is another major concern. • Planks must overhang their support by at least 150mm but no more than 250mm otherwise uplift might occur. iLevel Trus Joist ® Heavy Commercial Microllam LVL Scaffold Plank Speciﬁer's Guide COM-6630 August 2006 3 DESIGN PROPERTIES General Notes Design properties are determined in accordance with ANSI A10.8-2001, Appendix C. These properties apply only to Microllam® laminated veneer lumber (LVL) scaffold planks used in conditions where the moisture content of the plank is not expected to exceed … and overlap each other by at least 12 in. It merely noted that, "all planks shall be secured from movement or overlapped in accordance with §1926.451(a)(12)." Do not stand on platform overhangs. of scaffold planks. – Scaffold frame is covered from front to back – No more than 1” spacing between planks – No more than 10” space from backside of frame – Must bear on supports at least 6” •Cleat if planks move or cannot make minimum – For continuous runs, planks must overlap 12” The ends of … wide. In a Bureau of Labor and Statistics (BLS) study, 72% of workers injured in scaffold accidents attributed the accident either to the planking or support giving way, or to the employee slipping or being struck by a falling object. Planks not properly overlapped • There should be no large gaps in front edge of platforms. Never hang brackets from wall ties after removal of forms. Platform units may be individual scaffold grade wood planks, fabricated plank, fabricated scaffold decks or fabricated scaffold platforms. a. Scaffold plank must have at least 12” of overlap and shall extend not less than 6” nor more than 12” beyond the centers of their end supports (bearers). This letter constitutes OSHA's interpretation of the requirements discussed. Moisture from standing water, as well as point-loading from the … b. B. The planks that meet the corner ledger at an angle shall be laid first, extending over the diagonally placed ledger far enough to have a good safe bearing, but not far enough to involve any danger from tipping. The space between planks cannot exceed 1 inch, except where necessary for obstructions. as scaffold plank or fabricated metal plank. In both methods the ends of each scaffolding plank are overlapped with the ends of the adjacent planks. Russell B. Swanson, Director Cross bracing is acceptable in place of mid-rails when the ‘x’ is between 20 and 30 inches above the work surface. • Where planks are overlapped, the overlap past the edge of the plank underneath must be 300mm or greater. If power lines cannot be deenergized (ideal), the worker and scaffold must be separated by at least: 3’ if lines are insulated and < 300 volts ; ... planks must overlap 12” - Wood Planks. 12.Work platforms must be fully planked either with lumber that has been properly inspected and graded as scaffold plank or with fabricated platforms or planks in good condition. Planks greater than 10’ long require a 6” minimum and a 18” maximum overlap. All braces must be checked for proper engagement onto locks. — This will create a firm surface for workers and their Plank Thickness Max. Ensure the scaffold has not … When a scaffold materially changes its direction, the platform planks shall be laid to prevent tipping. Scaffold platforms above one section high must be provided with safe access. Moving restrictions. 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. On the other hand, if plywood sheets are used to cover gaps between scaffold bays, these sheets must … 13.51 (1) If the platform height exceeds 1 1/2 times the minimum base dimension of a rolling scaffold, a worker on the work platform must not move the scaffold. All walkway platforms must utilize at least two (2) planks laid side by side, and must overlap their support ledger by not less than 6 inches. Scaffolds must be fully planked or decked whenever possible. When creating a long platform connecting multiple spans of frames, the board overlap must not be less than 12 inches unless the boards or platforms are nailed together or otherwise secured to prevent movement. Planking shall have at least 12 inches of overlap and extend 6 inches beyond center of support, or, be cleated at both ends to prevent sliding off supports. Scaffold planks that have accumulated layers of paint, plaster, etc. The DO’s for Scaffolding Safety in Construction. Scaffolding Walkboard/OSHA Plank - ScaffoldMart.com - Scaffolding & Scaffold Accessories at the Best Possible Prices Plank with notches (small checks on the end) Plank with checks (cracks that are only on the surface) 2. We manufacture steel scaffold planks in 6 inch and 9 inch widths, lengths from 24 inches to 120 inches. Scaffold boards (also called scaffold planks, walkboards, and OSHA boards) are an extremely important component to your scaffolding system as they carry your workers and the weight of your materials. A scaffold five feet wide, 35 feet in length, and 30 feet high with frame spacing of seven feet must have horizontal securement every 20 feet and vertically-in every 20 feet. Directorate of Construction, Occupational Safety & Health Administration, Occupational Safety and Health Administration, Severe Storm and Flood Recovery Assistance. Planking shall have at least 12" of overlap and extend 6" beyond center of support, or be cleated at both ends to prevent sliding of supports. A spur scaffold is a scaffold supported by inclined load-bearing members. Planks Sliding Off or Breaking Many scaffold injuries involve problems with planks. Not just any board will do. Ledgers must be spliced by overlapping and nailing at poles-never between poles. High winds are classified by the National Weather Service as 30 mph gusts or higher. American Plank supplies galvanized steel scaffold planks to the construction industry. Planks 10’ long or less require a 6” minimum and a 12” maximum overlap. The best solution for a particular job will depend on factors such as the loads that will be present on work platforms, providing workers with safe access and fall protection, and the number of work levels. Over head power lines (OHPL): Platform without railings is a grave concern in the construction industry. Access in the form of a secured ladder, stair tower, ramp, etc. • Work platforms must be fully planked either with scaffold graded solid sawn or laminated plank or with fabricated platforms in good condition. Scaffold planks can also break if they are in poor condition or overloaded. Dangerous splits may be hidden underneath these coatings. Anheuser-Busch Companies, Inc. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person. The first is to install toe boards or netting on work platforms to prevent these items from falling to the ground or lower-level work areas. 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