Decking. Decking boards span from joist to joist. If you use 5/4 decking, joists must be no farther apart than 16 inches. Decking made of 2x4s or 2x6s can span up to 24 inches. If you will run decking at an angle, you may need to put the joists closer together; know your local codes.
Spacing 2x10 joists at 16 inches, instead of 24 inches, on-center provides a stronger deck at a reasonable extra cost. This joist layout would not provide an Keep in mind that joist spacing may be dictated by the type of decking boards to be installed and how they are to be laid out. While most wood and
28mm thick deckboards can be laid on joists with 600mm spacing - though for higher level decks, this should be reduced to 500mm centres. Composite deck boards will require the joist spacings to be closer than this. Smaller joists - say 4x2 will need to be positioned at 450mm or 500mm between each decking joist.
The proper deck joist span (distance between supporting beams below the joists) for your deck should be known before you start building and is needed to draft your deck plan. The spans of joists varies based upon several factors: joist size, spacing between joists, decking material and wood species.
Because I couldn't find a good load table (at least not quickly), I tried to calculate deflection and bending stress, and I can't see anything wrong with using 5/4" x 6" cedar boards (actual dimensions 1" x 5.5") across a 24-inch span: Decking load calculations. Perhaps I did something wrong in my calculations
*Joists may cantilever up to ¼ 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 ½” for a total maximum length of 20' -7 ½”. Southern Pine Deck. Beam Maximum Spans*. Lumber. Size. Total Deck Joist Span (including cantilever).
Hi all, i know, i know another decking question :) But search did not bring up anything on what i need. Ok, my decking area is fairly large and on a slop so will be part raised. The dimensions of the area is 4.7 M wide by 6.6 long. I'll be using 4.8M joists (14.5 x 4.5cm) and 2.4 M boards. The board will be
Shanghai Seven Trust Industry Co., Ltd, founded in the year 2008, is a hi-tech enterprise which specializes in the R&D, sales, and service of WPC materials, Provide excellent products, professional technology and sincere service.