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Stair Treads Standard Sizes

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  • STAIR TREAD TOLERANCES AND DETAILS STANDARD SIZES Typical Tread Dimensions * *and all aluminum Grating Depth (See tables on pages 47-52) Bearing Bars: 1” x 3 /16”, 1¼” x 3 16”, 1½” x 3/16” Widths: 9 ¾”, 1015/16”, 121/8” Lengths: 30” and 36” All standard sizes available in painted and galvanized finishes. Stair details refer to the standard requirements for each of the various components of a flight of stairs. Regulated by building codes, stair details specify the sizes of risers and treads, stair widths, the placement of handrails and guardrails, and construction methods for fabricating stairs. Iroko Stair Tread. Starting at $102.06. arrow-left. 1 2 3. arrow-right. The Hardwood Lumber Company specialized in quality Wooden Stair Treads. Our Stair Treads come in standard sizes or can be crafted to your custom specifications by the woodworkers at our manufacturing facility in Middlefield, Ohio. We can offer a large selection of standard sizes available directly from our stock, in galvanized steel and stainless steel. The majority of our galvanized stair treads can also be combined with our staircase stringers. Guaranteed r eliability . The mesh size and bearing bar height are adjusted to the width of the stair tread. Steel Grating Standard Sizes. We stock and supply standard sizes in galvanized back and F.R.P. but can also custom-make to suit your specific requirements. Our stock sizes are as follows: 450 × 50 × 20. 580 × 50 × 20. 730 × 50 × 20. 880 × 50 × 20. 1030 × 50 × 20. 1180 × 50 × 20. STAIR TREAD TOLERANCES AND DETAILS STANDARD SIZES Typical Tread Dimensions * *and all aluminum Grating Depth (See tables on pages 47-52) Bearing Bars: 1” x 3 /16”, 1¼” x 3 16”, 1½” x 3/16” Widths: 9 ¾”, 1015/16”, 121/8” Lengths: 30” and 36” All standard sizes available in painted and galvanized finishes.

  • The Average Stair Tread Size | Hunker

    Harvard University lists typical tread sizes between 8 and 11 1/2 inches. However, the Americans with Disabilities Act (ADA) lists the minimum tread size as 11 inches, which would be the effective minimum and likely the average size of the tread for any stairs built for public use.;A nosing is the edge portion of the tread that exceeds the dimension of the riser. According to standard dimensions, nosing should be less than 1 ½ inches. The angle that the staircase makes with the surface of the ground is called the slope. This angle should be at least 30 degrees and no more than 50 degrees. We can offer a large selection of standard sizes available directly from our stock, in galvanized steel and stainless steel. The majority of our galvanized stair treads can also be combined with our staircase stringers. Guaranteed r eliability . The mesh size and bearing bar height are adjusted to the width of the stair tread. McNICHOLS stocks numerous Stair Tread types and sizes available for immediate shipment. Most Bar, Fiberglass, and Plank Grating items can be cut-to-size and fabricated into Stair Treads from our on-hand inventory Some Expanded Metal Grating and Catwalk items may be fabricated into Stair Treads. OSHA 1910.25(c)(3) requires standard stairs to h ave a minimum tread depth of 9.5 inches (24 cm). IBC 1011.5.2 requires that stair treads be 11 inches (279mm) minimum measured horizontally between the vertical planes of the foremost projection of adjacent treads and at a right angle to the treads leading edge. The standard acceptable range of dimensions for exterior Treads is 11 to 18 inches. In order to provide the most ergonomic flow, Tread length should be determined based on the following formula whenever possible: (2x Riser Height) + Tread Length = 24 to 26” LANDINGS STAIR TREAD TOLERANCES AND DETAILS STANDARD SIZES Typical Tread Dimensions * *and all aluminum Grating Depth (See tables on pages 47-52) Bearing Bars: 1” x 3 /16”, 1¼” x 3 16”, 1½” x 3/16” Widths: 9 ¾”, 1015/16”, 121/8” Lengths: 30” and 36” All standard sizes available in painted and galvanized finishes.

  • Standard stair treads

    We can offer a large selection of standard sizes available directly from our stock, in galvanized steel and stainless steel. The majority of our galvanized stair treads can also be combined with our staircase stringers. Guaranteed r eliability . The mesh size and bearing bar height are adjusted to the width of the stair tread.;A nosing is the edge portion of the tread that exceeds the dimension of the riser. According to standard dimensions, nosing should be less than 1 ½ inches. The angle that the staircase makes with the surface of the ground is called the slope. This angle should be at least 30 degrees and no more than 50 degrees. Standard Stair Treads – all wood species excluding the following: Bamboo, Acacia, Kempas, and Strand Eucalyptus (only available in 48” and no custom dimensions) Standard treads provide a perfect solution for boxed staircases that are contained by walls on both sides. The optimum riser was 7.2 in (183 mm), and the optimum tread (run) was 11 or 12 in (279 or 300 mm). These dimensions were acceptable to both males and females, young and old, and subjects of greater or lesser stature. Larger dimensions were not as acceptable to shorter subjects, and smaller dimensions were not as acceptable to taller subjects. The standard acceptable range of dimensions for exterior Treads is 11 to 18 inches. In order to provide the most ergonomic flow, Tread length should be determined based on the following formula whenever possible: (2x Riser Height) + Tread Length = 24 to 26” LANDINGS Standard Stair Treads – all wood species excluding the following: Bamboo, Acacia, Kempas, and Strand Eucalyptus (only available in 48” and no custom dimensions) Standard treads provide a perfect solution for boxed staircases that are contained by walls on both sides. Bamboo, Acacia, Kempas, and Strand Eucalyptus (only available in 48” and no custom dimensions) □ Standard treads provide a perfect solution for boxed staircases that are contained by walls on both sides. □ The ¾” thick tread face is complete with a full 1 1/16” bull nose for strong visual appeal at the stair front.

  • Stairway risers and treads: acceptable and preferred dimensions

    The optimum riser was 7.2 in (183 mm), and the optimum tread (run) was 11 or 12 in (279 or 300 mm). These dimensions were acceptable to both males and females, young and old, and subjects of greater or lesser stature. Larger dimensions were not as acceptable to shorter subjects, and smaller dimensions were not as acceptable to taller subjects.