Framing



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Choose from hundreds of permit ready designs. Our deck plans include a detailed framing plan, footing layout, material list and typical details. These plans are free to download as pdf files that can be printed to 1/4" - 1' scale on 11x17 paper.

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Deck Cantilever Rules and Limits - How far can it span?

The distance your joists can safely cantilever or overhang a drop beam is determined by the size of the joists, the wood type and grade of the lumber and the spacing between joists. Many building departments limit joist cantilevers to 24" maximums.  You must use at least 5 framing nails to attach the rim joist to the ends of your joists.

The Wood Frame Construction Manual, Published by the American Wood Council  states that cantilevers are limited to 1/4 the span of the joists.  2x10 joists spanning 14 feet, for example, could cantilever up to 3.5 feet.

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Comments, Questions and Reviews

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I am Helping a friend extend an existing deck THREE FEET that has 2x8 joists. I plan to canterlever the extension using a combination of deck screws and two carriage bolts for each joist. How many feet should the new 2x8s overlap the the existing? This deck is just above the ground, should I plan a support at the end of each joist? Thanks.

posted by Wes Pickreign at 4/6/2015 8:08:30 AM


YaDumFuk...no ya can''t do et. 2x8''s can only be cantilevered 1/2 of the width of the wood. A 2x8 is actually 1 1/2 inches, so according to code, you can only extend the deck 3/4 of an inch. I''d recommend using 6x12''s and adding a post to every joist, about every 3.1415 feet (I like pi(e)).

posted by yadumfuk at 5/24/2015 8:55:24 AM