WOOD I BEAM™ JOISTS
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Catalog excerpts

WOOD I BEAM™ JOISTS - 1

WOOD I BEAM™ JOISTS GEORGIA-PACIFIC WOOD PRODUCTS ENGINEERED LUMBER RESIDENTIAL GUI

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WOOD I BEAM™ JOISTS - 2

Wood I Beam™ Joist features and benefits ■ ■ ■ ■ ■ Engineered to deliver consistent stiffness and strength characteristics Dimensional stability helps minimize floor squeaks and helps reduce callbacks Resists shrinking and twisting for less waste and more consistent performance Available with solid sawn lumber or laminated veneer lumber (LVL) flanges Available in value lengths from 208 to 488 (lengths up to 608 by special order) WI Series (Lumber Flanges) All Wood I Beam joists have an enhanced OSB web. Referenced dimensions are nominal and used for design purposes. Not all products are...

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WOOD I BEAM™ JOISTS - 3

Floor Joist Maximum Spans Span Illustrations Simple Span 1 . These span tables are based on uniform loads, as noted above; live load deflection is limited to L/480 for better performance. Floor performance is greatly influenced by the stiffness of the floor joists . Experience has shown that joists designed to the code minimum live load deflection (L/360) will result in a floor which may not meet the expectations of some end users . Floor systems stiffer than L/480 may be desired . 2 . Spans are clear distances between supports, and are based on composite action with glued-nailed APA Rated...

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WOOD I BEAM™ JOISTS - 4

Bonus Room Floor Joist Selection Guide L (Span) 208 WI Joists (Series –Depth)1 SpacinG GPI Joists (Series – Depth)1 Spacing 1 . Double joist (2-ply) is denoted by “Dbl” . Both joists must be glued and nailed as required for floor sheathing . No filler blocking required when top-loaded only . 2 . A 21⁄ 29 minimum bearing length must be provided by support wall or hanger seat . 3 . A 39 minimum bearing length must be provided by support wall or hanger seat . 4 . To be used in this application, the joist requires bearing stiffeners at both ends per detail F18 . Design Parameters: 2X roof and...

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WOOD I BEAM™ JOISTS - 5

Roof Joist Maximum Spans NOTES: 1 . Roof joists to be sloped min . 1⁄49 in 129 . No camber provided . 2 . Maximum deflection is limited to L/180 at total load, L/240 at live load . 3 . Maximum slope is limited to 129 in 129 for use of these tables . 4 . Tables are based on the more restrictive of simple or multiple spans . 5 . End spans of multiple-span joists must be at least 40% of the adjacent span . 6 . For other loading conditions or on-center spacings, refer to Uniform Load Tables or use FASTBeam ® selection software . 7 . Minimum end bearing length is 13 ⁄49 . Minimum intermediate...

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WOOD I BEAM™ JOISTS - 6

Roof Joist Maximum Spans – 115% (Snow) continued Refer to Notes on page 8 . Load (PSF) Joist Series Joist Depth SNOW 115% Live 40 Dead 15 SNOW 115% Live 50 Dead 15 ENGINEERED LUMBER RESIDENTIAL GUIDE GEORGIA-PACIFIC WOOD PRODUCTS

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WOOD I BEAM™ JOISTS - 7

Roof Joist Maximum Spans – 125% (Non-Snow) Refer to Notes on page 8 . Load (PSF) Non-SNOW 125% Live 20 Dead 10 Non-SNOW 125% Live 20 Dead 15 Non-SNOW 125% Live 20 Dead 20 GEORGIA-PACIFIC WOOD PRODUCTS

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WOOD I BEAM™ JOISTS - 8

Dead Load Material Weights Pounds per square foot (PSF) Material PSF Sheathing and Decking 11 ⁄329 Plytanium® Plywood . . . . . . . . . . . . . . . 1.1 15 ⁄329 Plytanium Plywood . . . . . . . . . . . . . . . . 1.5 19 ⁄329 Plytanium Plywood . . . . . . . . . . . . . . . . 1.8 23 ⁄329 Plytanium Plywood . . . . . . . . . . . . . . . . 2.2 7 ⁄89 Plytanium Plywood . . . . . . . . . . . . . . . . 2.6 11⁄89 Plytanium Plywood. . . . . . . . . . . . . . . . . 3.4 3 ⁄89 OSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 7 ⁄169 OSB . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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WOOD I BEAM™ JOISTS - 9

Allowable Uniform Floor Loads (PLF) Joist Series Depth Joist Span: Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total Live Total 1 . Refer to General Notes on page 11 . 2 . L/480 live load deflection is recommended (See System Performance on page 5 .) For L/360 (minimum code deflection) multiply L/480 value times 1 .33 . GEORGIA-PACIFIC WOOD PRODUCTS 3 . Total load deflection is limited to L/240 . ENGINEERED LUMBER...

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WOOD I BEAM™ JOISTS - 10

Allowable Uniform Roof Loads (PLF) Joist Series Depth Joist Span: 1 . Refer to General Notes on page 11 . 2 . All roof joists to be sloped 1⁄49 in 129 minimum . 3 . Use of this table for horizontal spans should be limited to roof slopes of 29 per foot or less . For greater slopes, convert horizontal span to up-the-slope span using the table on page 14 . 4 . Total load deflection is limited to L/180 . For less deflection use the L/240 row . 5 . Table applies to gravity loads only . ENGINEERED LUMBER RESIDENTIAL GUIDE GEORGIA-PACIFIC WOOD PRODUCTS

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WOOD I BEAM™ JOISTS - 11

Up-the-Slope Spans & Cutting Lengths for Sloped Roofs Joist Depth 91⁄29 Slope Factor When using the uniform load table for roofs with slopes greater than 2( per foot, substitute the up-the-slope-span in the table on page 13 . Horizontal Span Lh EXAMPLE: 7/12 slope and 208-09 horizontal span, 28-0 9 overhang (horizontal) one end, 2x4 walls Up-the-slope span: 208 x 1 .158 = 23 .168 — use 248 joist span column to check load capacity . Overall length: Lh = 28 + 3 .5 9/12 + 208 + 3 .59/12 = 22 .5838 If a 149 joist will be used, Lp = 0 .681 feet L = (22 .5838x 1 .158) + 0 .6818 = 26 .8328 =...

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WOOD I BEAM™ JOISTS - 12

Installation Notes A. Engineered lumber must not be installed in direct contact with concrete or masonry construction per code and shall be used in covered, dry-use conditions only (moisture content less than 16%). B. Except for cutting to length and birdsmouth cuts, top and bottom flanges of Wood I Beam™ joists shall not be cut, drilled or notched. C. Concentrated loads shall only be applied to the upper surface of the top flange, not suspended from the bottom flange. Contact Georgia-Pacific for exceptions. D. When nailing to the wide face of the flange surface, maintain spacing in the...

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WOOD I BEAM™ JOISTS - 13

Typical Framing GEORGIA-PACIFIC WOOD PRODUCTS ENGINEERED LUMBER RESIDENTIAL GUIDE

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