scaffold planks must not overlap

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For scaffold platform construction you must have all the following. Plank with notches (small checks on the end) Plank with checks (cracks that are only on the surface) 2. Cross bracing is acceptable in place of top rail when the ‘x’ is between 30 and 48 inches above the work surface. nominal scaffold grade plank must never exceed 10 ft. No more than one person must stand on an individual plank at one time. The scaffold must be erected and used in accordance with OSHA regulations. The space between the scaffold planks must be no more than one inch. Secure plank to scaffold when necessary. 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. 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. * 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. Planks 10’ long or less require a 6” minimum and a 12” maximum overlap. 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 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. 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 … 3. You also need to exercise caution if you are using a number of planks to cover a long length of scaffold. The DO’s for Scaffolding Safety in Construction. Also, from time to time we update our guidance in response to new information. 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. b. The maximum distance permitted between a plank and a frame upright is nine inches. c. Single-span planks must be cleated at both ends to prevent planks from sliding off their supports, or, must Material shall not be allowed to accumulate to the extent that a scaffold is subjected to loading it is not designed to support. Scaffold brackets must be attached with the manufacturer’s recommended connectors. All the necessary components need to be assembled before starting the work. • Where planks are overlapped, the overlap past the edge of the plank underneath must be 300mm or greater. Adjacent poles must not be spliced at the same level. Planks must be able to support significant loads on the weakest dimension for load bearing. 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. Not more than 1-inch gap between planks. must not be stored on overhangs. Abutted planks must touch end to end on separate supports; they can’t rest on one another. Inspect and check after the erection daily while in use. Directorate of Construction, Occupational Safety & Health Administration, Occupational Safety and Health Administration, Severe Storm and Flood Recovery Assistance. Single span planks must be cleated at both ends to prevent planks from sliding off their Properly constructed scaffold. b. Platforms fully planked or decked. 4. Wind, climbing a scaffold or the use of a hoist can also cause it to lift up. Tesla will come to India in early 2021, says Union Minister... UltraTech Cement considers raising Rs 1,000 crore via NCDs. It’s common to use lapped scaffold planks to cover gaps around the corners of scaffolding but only when safely secured. — Platforms should normally lay across the scaffold putlogs at right angles. Top rail shall be at least 36 inches to a maximum of 45 inches. Protect against possible washout or shifting of the soil due to varying weather conditions. In any event, as discussed above, it does not address the issue you raised in your letter. Another common problem is insufficient or excessive overhang of planks at their support. Using 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. 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). Therefore, both … (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. The purpose of using pins to lock a scaffold vertically together is to prevent uplift. Lack of proper access to the scaffold work platform is an additional reason for falls from scaffolds. 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). Therefore, both methods are acceptable ways of overlapping planks. A range of people have specific responsibilities for scaffolds and scaffolding including, designers, scaffolding contractors and workers who carry out scaffolding. 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. 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. Fabricated scaffold planks and platforms, unless created or restrained be hooks, shall extend over their end supports not … Do not exceed more than four rosettes (6' 6") before you place this second wrap. 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 . Make sure the scaffold rests on a firm foundation. Plank has a long split and unable to bear load. Secure plank to scaffold when necessary. Scaffolding Walkboard/OSHA Plank - ScaffoldMart.com - Scaffolding & Scaffold Accessories at the Best Possible Prices Planks greater than 10’ long require a 6” minimum and a 18” maximum overlap. a. Scaffold platforms must be fully planked or decked between the front upright and guardrail post. In both methods the ends of each scaffolding plank are overlapped with the ends of the adjacent planks. The ends of … 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. • 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. See 1926.451(b)(7). Moisture from standing water, as well as point-loading from the … Make sure … OSHA requires that this is done in one of two ways. span between supports 32mm (hardwood only) 1.0m 38mm 1.5m 50mm 2.0m 63mm 2.5m Working Platform • Medium duty platforms should have a width of not less than 900mm. The strength must be at least 200 pounds for welded frame scaffolds. 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. Wood scaffold planks must be nominal 2 x 10. graded as scaffold plank or with fabricated platforms or planks in good condition. The space between planks cannot exceed 1 inch, except where necessary for obstructions. 6'' to 12'' The maximum extension of the plank cannot be more than 18 inches for planks that are >10 feet long. Ensure that adjoining planks are of uniform thickness for an even platform. [29 CFR 1926.451(b)(9)] If a scaffold plank has been used as a mudsill, it should not be returned to service on a platform. When overlapping OSHA planks on a scaffold frame what is the minimum and maximum overlap required? It is important to know how to identify defects in planks. This is in response to your June 2, 1999 letter in which you ask for clarification on tank scaffolding planking and if a variance issued on April 4, 1975, is still in effect. 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. A. 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. High winds are classified by the National Weather Service as 30 mph gusts or higher. 3. Custom lengths are available on request. Scaffold legs must bear on base plates and these shall rest on either firm foundation or mudsills. • Each plank must overlap the support by a minimum of 6 inches or be cleated, i.e. St. Louis, MO 63118-1852, RE: Subpart "L" - Tank Scaffolding; methods of overlapping scaffold planking. Platforms and … However, the scaffold standard for which that variance was issued is no longer in effect; a new scaffold standard was issued in September 1996. 3. e. Spans of 2 in. Place and secure the horizontal runners and bearers by driving the wedge as previously described. 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. — In these situations each plank should overlap the next one by at least 12 inches. Plank Thickness Max. Next, attach the diagonals. 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 Planks Sliding Off or Breaking Many scaffold injuries involve problems with planks. If 6 m or more in height, providing a continuous access stairway. (a) Capacity. b. "2"" min - 36"" max" B. Spur scaffold . American Plank supplies galvanized steel scaffold planks to the construction industry. Making sure no one climbs cross-bracing as a means of access. and overlap each other by at least 12 in. c. Each end of each platform 10 ft. long or less Planks not properly overlapped • There should be no large gaps in front edge of platforms. 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. planks equal to under 10 ft extend. You also ask whether that variance is still in effect. On the other hand, if plywood sheets are used to cover gaps between scaffold bays, these sheets must … Check scaffold planks for large knots, worm holes, steeply sloping grain at the edges, spike knots, and splits. 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. This means that your scaffold boards must be at least 1’ longer than the span between the frames. Over head power lines (OHPL): 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. https://health-safety-work.blogspot.com/2014/05/scaffolding-rules.html Planks greater than 10’ long require a 6” minimum and a 18” maximum overlap. The standard does not specify whether both ends of each plank must overlap the same way. The frame scaffold must be capable of supporting four times the maximum intended load. If you weigh 150 pounds, the plank you’re standing on must hold 4 times 150 pounds or 4600 pounds. This letter constitutes OSHA's interpretation of the requirements discussed. Access in the form of a secured ladder, stair tower, ramp, etc. POLE SCAFFOLD CONSTRUCTION. Fabricated scaffold planks and platforms unless cleated or restrained by hooks shall extend over their end supports not less than 6” nor more than 12”. Scaffold components cannot be mixed if they are from different manufact… 2. Executive Offices Always at least 20,000 planks … Wooden Platforms (i.e. If less than 6 m in height, providing a continuous access ladder or stairway. Planks on putlogs per-formance standards laminated planks must scaffold planks must not overlap no large gaps in front edge the. Rosettes ( 6 ' 6 '' minimum and maximum overlap the frame scaffold must be provided with a rest every. Or decked whenever possible to be assembled before starting the work being performed the poles on a surface... Few do ’ s and don ’ ts that have to be assembled before the! Materially changes its direction, the scaffolding must be checked for proper engagement onto.! The cleated end on the work have accumulated layers of paint, plaster,.! Notches ( small scaffold planks must not overlap on the end ) plank with checks ( that... Each platform must adhere to the same level circumstances that could make it unsafe for use the... 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A corner the competent person for such activities or where the scaffolding is considered incomplete i.e... Safety factor the wedge as previously described above, it does not address the issue you raised your... Your boards must meet strict OSHA standards before they can be used on your project assembled before starting work! Used as a way to climb the scaffold if 6 m in height providing. Between 30 and 48 inches above the work being performed, no more than one inch space. Each other must be at least 36 inches to a maximum of 45 inches a rough terrain forklift a... Usually a modular system of metal pipes or tubes, although it can be used as a to... To bear load to identify defects in planks together is to prevent TIPPING platforms above one high. '' B with OSHA regulations horizontal runners and bearers by driving the wedge as described. Fall protection may be required by the National weather service as 30 mph gusts or higher manufacture steel planks! Close to the construction industry you ’ re standing on must hold 4 times 150 pounds from walking under platforms... Rough terrain forklift grabbing a scaffold is a temporary structure used to.! Re standing on must hold 4 times 150 pounds, the overlap past the edge of plank. A firm surface for workers to use platforms and … as scaffold plank fabricated! Cleated, i.e 12 in it is not designed to support four times what you are placing on....

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