runs of decking must be continuous over at least three approximately equal spans. Joints in the same general line shall be separated by at least two intervening courses. Each piece of decking must rest on at least one support.
Your selection of decking material will determine the maximum spacing of your joists. Some species of wood are stronger than others so refer to the Decking Span Table below before going to the Deck Joist Span Table .
Framing tables for decks: joist and beam spans and sizes. Recommended or allowable joist and beam spans: this article explains typical spans for deck joists, deck beams, and deck flooring, giving both standard span tables and a quick "rule of thumb" that works pretty well.
The span of a beam is dependent on a few variables. The species of lumber, size of lumber and the load it carries. Fewer posts on upper level decks are typically more desirable to the occupants and this drives the use of larger framing materials for longer spans.
First Step: Select a Wood Species. Select your decking material. Refer to the Decking Span Table to determine what is the maximum distance that your chosen decking can span between joists.. For example 2x6 materials can usually span 24 without any noticeable deflection and still support a significant load.
Products Case. 2x6 - The Seven Trust. Shop our selection of 2x6 in the Department at The Seven Trust. Cart 2x6 24 2x8 12 2 in. x 6 in. x 10 ft. Seven Trust S4S Western Red Cedar Decking Board.
Angled Decking Span Chart Plank Size Maximum Uniform Live Load pounds per square foot Boardwalk Structural Stair Treads While Boardwalk HFS, Woodgrain/Smooth and 2x6 planks are ideal for decking applications, only the 2x4 and 2x6 Boardwalk
Assuming that you are using treated pine decking, the following spans 2x6 and Tongue and groove boards at 90 spaced 16 o.c. Deck joist span 0 Online Service Deck Joist Span Table.
Joist Spacing For Deck Deck Joist Spacing Span Tables For Deck Joists Deck Beams And Deck Flooring Giving Floor Joist Spacing Deck
Before building a composite deck, always read the installation instructions from the manufacturer, paying special attention to the required joist spacing. Most composite decking materials require 16" on center spacing for straight decking and 12" on center joist spacing for 45 degree angle diagonal decking.
Table of Contents. 1. Two Inch Nominal Thickness - Allowable Roof Load Limited by Bending .. 8 2. Two Inch Nominal Thickness - Allowable 4 TONGUE AND GROOVE ROOF DECKING. Two-Span Continuous. All pieces are supported on three supports. All end joints occur in line on every other support Figure 6 .
See Deck Beam Span Charts for beam size and spacing. for 2x4, 2x6, and radius edge 5/4" and composite decking are given in table 502. Installation - Veranda Composite Decking - Veranda Decking
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 youll encounter for joist or rafter bearing, its a safe value.
See Deck Beam Span Charts for beam size and spacing. for 2x4, 2x6, and radius edge 5/4" and composite decking are given in table 502. Contact US 1 - Composite Deck Building - Substructure - YouTube
Deck planks will be 2x6 redwood running parallel to the house. I was originally planning to use 2x6 pressure treated joists for the 8' span, 16" Contact US
The span table used in our area for 2011 is the UBC 1997 code left for the minimum size of joists for decks. These joist spans tables don't take into account the wet conditions. The IRC deck joist span table
The table includes spans for common lumber species used for deck framing like southern pine, Douglas fir, hem-fir, redwood, western cedar and others. The table accounts for wet service conditions and an incised lumber reduction for species commonly incised for pressure treatment penetration.