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The scaffolding width is determined by the width of the boards, the minimum width allowed [where?] is 600 mm but a more typical four-board scaffold would be 870 mm wide from standard to standard. More heavy-duty scaffolding can require 5, 6 or even up to 8 boards width.
Planks are often used as a work surface on elevated scaffolding, and need to be thick enough to provide strength without breaking when walked on. The wood is categorized as a board if its width is less than 2 + 1 ⁄ 2 in (64 mm), and its thickness is less than 1 + 1 ⁄ 2 in (38 mm).
Scaffolding with wooden toe board. A roofing toe board is one of the most basic pieces of safety equipment a roofer can use. A toe board is a long piece of 2 inch x 4 inch (a 2x4) wood nailed horizontally along a roof in various places.
For example, a "2×4" board historically started out as a green, rough board actually 2 by 4 inches (51 mm × 102 mm). After drying and planing, it would be smaller by a nonstandard amount. Today, a "2×4" board starts out as something smaller than 2 inches by 4 inches and not specified by standards, and after drying and planing is minimally 1 ...
The board foot or board-foot is a unit of measurement for the volume of lumber in the United States and Canada. [1] It equals the volume of a board that is one foot (30.5 cm) in length, one foot in width, and one inch (2.54 cm) in thickness, or exactly 2.359 737 216 liters .
Hint: The first one can be found in the bottom half of the board. Here are the first two letters for each word: SH. JE. DE. WI. AV. LI. HO (SPANGRAM) NYT Strands Spangram Answer Today.