Table Number Grade Live or Ground Snow Load(psf) Dead Load(psf) Load Duration Factor, C D; 14: All: 40: 10: 1.00: Download a PDF, Tables 13 – 14
LOAD TABLE FOR SPANS OF WESTERN CEDARS BEAMS AND HEADERS RAFTER SPANS IN FOOT-INCH 30# SNOW LOAD 10# DEAD LOAD L/240 DESIGN CRITERIA: Strength - 30 lbs. per sq. ft. snow load, plus 10 lbs. per sq. ft. dead load Deflection- Limited in span in inches divided by 240 for live load only. Document created courtesy of the Western Wood Products ...
Refer to the Deck Beam Span Table below to assist in determining the maximum span of a given beam between posts. Obviously, the larger the beam, the greater the distance it can span between posts. A Redwood 4x6 beam should span no more than 6' between supporting posts.
Span Tables. Use the span tables in the links below to determine the maximum allowable lengths of joists and rafters. These tables provide maximum spans for the #2 grades of four common species of lumber (Southern Pine, Douglas Fir, Hem-fir, and Spruce-pine-fir (SPF). Determine Maximum Joist and Rafter Spans
Span charts for deck joists and beams in a variety of framing materials, including wood and steel. Skip to main content. Shop Email Us 1-877-232-3915. Products. Back; Decking; Siding & Cladding; ... TABLE R507.5(2) MAXIMUM DECK BEAM SPAN—50 PSF GROUND SNOW LOAD c. BEAM SPECIES d: BEAM SIZE e:
Table 9.1 in Span Tables for Joists and Rafters (Figure 5) gives a required compression value of 237 psi for a span of 16 feet and bearing length of 1.5 inches. (the tables permit a bearing length of up to 3.5 inches, but since 1.5 is probably the worst case that you’ll encounter for joist or rafter bearing, it’s a safe value.)
Beam Span Calculator For help, simply click on the beside the section you need help with, watch this Tutorial Video. Lumber Species Southern Pine Douglas Fir Douglas Fir-Larch Hemlock-Fir Spruce-Pine-Fir Redwood Western Cedar Ponderosa Pine Red Pine
Resources provide a simplified system to determine allowable joist and rafter spans in one- and two-family dwellings, and the companion supplements for tabulating allowable bending and modulus of elasticity design values for visually graded and mechanically graded dimension lumber. ... 2012 Span Tables for Joists and Rafters. 2015 Design Values ...
Lumber span tables are valuable guides which provide the maximum allowable spans for different types and sizes of Southern Pine and pressure-treated lumber under various load conditions. They help you determine how far a wooden beam or joist can span between support points, such as walls or beams, without compromising safety and structural ...
oug Fir Timbers Column & Load Tables to I ILL to DL Rati Normal Load Duration (C 1.0) now Load Duration (C 1.15 360 o. 1 Douglar Fir-Larch Roof Beam Maximum Total Load (PLF) No. 1 Douglar Fir-Larch Floor Beam Maximum Total Load (PLF) 4x8 2744 76 1227 849 624 377 306 212 181 156 4x10 4x12 8723 3141 2181 1602 969 785 545 465 401 2517 1020 708 521
Deck beam span table. Deck joist span table. Deck joist rule of thumb. Deck framing tables, codes, specifications. Framing span tables for all types of wood construction, not just decks, are given separately . at FRAMING TABLES, SPANS where in addition to span tables for dimension lumber & timbers, we also give a rough rule of thumb that gives ...
A Work in Progress. The 2015 IRC simplified sizing deck beams with the introduction of Table R507.6 “Deck Beam Span Length.” That table presented the maximum spans for a series of multi-ply, built-up-dimensional-lumber beams from a double 2x6 through a triple 2x12, with beam spans based on the span of the deck joists from the ledger to the beam.
The headers and beams in the snow load size selection tables (Tables 1-4, 7-10 and 15-18) have been sized using the design roof snow load shown in the subheading for each table. The design roof snow load has been derived by reducing the ground snow load listed in each table heading in accordance with the provisions of Section 7.3 in ASCE 7-10 ...
The applicable standards are ASTM D2555 and ASTM D245 for clear wood and ASTM D1990 for full-size specimens. Spans shown in the Western Lumber Span Tables and the Product Use Manual were calculated using Western Lumber Base Values as published in WWPA’s Western Lumber Grading Rules.
Automated Load Distribution – From joists to beams to posts to footings. Built-In Span Tables and Material Properties – For wood, engineered lumber, and steel. Interactive Post and Beam Spacing Tools – Instant recalculations as geometry is adjusted. Permit-Ready Reports – With labeled load paths, code references, and diagrams.
For a 4x12 beam the shape factor is 1.1, resulting in a Fb of 632.5 psi. Using that and a depth of 12" the maximum load for the beam is 2610 lbs. Using a built-up beam of three or more stringers nailed together allows a 15% increase in the bending fiberstress. A 6x10 beam consisting of three 2x10 nailed together has Fb of 727.35 psi.
Span tables for visual and mechanical grades of southern pine lumber joists and rafters, and southern pine lumber and glue-laminated timber (glulam) headers, beams and girders. View SPC Span Tables. Photo SFPA. Western Wood Products Association Span Tables.
Beam Span Calculator Lumber Species Southern Pine Douglas Fir Douglas Fir-Larch Hemlock-Fir Spruce-Pine-Fir Redwood Western Cedar Ponderosa Pine Red Pine Beam Size/Lamination 2-2x6 2-2x8 2-2x10 2-2x12 ------ 3-2x6 3-2x8 3-2x10 3-2x12 ------ 3x6 3x8 3x10 3x12 ------ 4x6 4x8 4x10 4x12
