Deck Lumber Sizes and Spacing

Joist Layout for Stronger Decks | Professional Deck Builder ... Mar 20, 2013 ... While most wood and synthetic decking installed perpendicular to the joists can span 24 inches, some kinds require joists to be as close as 12 inches on-center when the decking is installed at an angle. Check with the decking manufacturer for this information. So, what joist size and spacing should you use...

How to Buy Decking Boards Lumber — The Family Handyman Avoid boards that are only 3/4 in. thick. They have a wimpy feel underfoot even with closer joist spacing. Length: When possible, buy decking that can run the full length of your deck. All lumberyards and home centers carry 16-ft. deck boards, but many also stock or can order 20- and 24-ft. boards, though they may cost more.

Span Tables for deck joists, deck beams, and deck flooring, giving ... Deck beam span table Deck joist span table Deck joist rule of thumb Deck & Porch Construction & Structural Fasteners Deck & Porch Post & Beam Connectors: steel post cap connectors, plywood post to beam cleats, other ... Details about the evolution of lumber standards are at FRAMING SIZE & Spacing, Age, Types.

How Far Can a Deck Joist Span? - Fine Homebuilding Mar 8, 2015 ... Until now, the IRC didn't have deck joist span tables but the 2015 IRC includes a new one (Table R507.5) that will make it easy for deck builders to spec a joist size for a given span and joist spacing. The table includes spans for common lumber species used for deck framing like southern pine, Douglas fir,...

Maximum Joist Spacing for Decks Southern Pine Deck Joist ... *Joists may cantilever up to ? of the actual adjacent span. For example, a 2 x 12 joist placed 16” OC. spanning 16'-6” between supports may cantilever up to an additional 4'-1 ?” for a total maximum length of 20' -7 ?”. Southern Pine Deck. Beam Maximum Spans*. Lumber. Size. Total Deck Joist Span (including cantilever).

Prescriptive Residential Wood Deck Construction Guide 4. PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE. American Wood Council. Table 2. Maximum Joist Spans and Overhangs.1. Species. Size. Joist Spacing (o.c.). 12". 16". 24". 12". 16". 24". Allowable Span2 (LJ). Allowable Overhang3 (LO). Southern Pine. 2x66. 9' - 11". 9' - 0". 7' - 7". 1' - 0". 1' - 1".