Post Spacing For Deck Roof

This generally yields a maximum tributary area of about 70 square feet.

Post spacing for deck roof.

Obviously the larger the beam the greater the distance it can span between posts. This post may contain affiliate links. Post spacing should be even. An essential part of planning a patio roof or gazebo project is determining the number size and spacing of rafters beams and posts according to the loads they will carry.

Typical post size is a pressure treated 4 4. While there may be a handful of circumstances that only require the minimum 4 4 deck post you will more than likely want to choose a 6 6 post for the deck. A redwood 4x6 beam should span no more than 6 between supporting posts. Post spacing is going to depend on your design local building codes the size and length of your beams and the size of your posts.

We feature articles on how to install continuous concrete pier foundations belled piers footing forms and the buried post on top of the footing method. While a 16 foot by 16 foot backyard deck for recreational purposes such as an outdoor kitchen and general lounging may only require deck posts spaced every 7 feet a larger deck may require that the spacing be narrowed down to within 5 feet. When supporting joists that span 12 feet with no overhang beyond the beam a double ply beam can span in feet a value equal to its depth in inches. Some of our articles focus on the various types of accepted footings that are used by professional deck builders.

The size of the deck directly affects the spacing of the support posts. A 2 2x10 can span 10 feet and so on. Home building a deck deck beam. If you move up to 4 by 8 you re usually allowed to span up to 10 feet between posts.

The smallest beams for patio covers are typically 4 by 6. It provides more stability for larger decks the ability to hold a heavier load and more room for notching. For more information see our disclosures here. Refer to the deck beam span table below to assist in determining the maximum span of a given beam between posts.

A 4 by 10 can usually span up to 12 feet between posts. For a deck framed from 2x10s i d assume maximum spans of about 14 feet for joists and 10 feet for beams. Dimensional lumber deck beam span chart the numbers in gray indicate the distance between the support posts. I wouldn t blink at the use of 4x4 posts up to 8 feet in length.

A double 2x12 beam can span 12 feet. The main structural members of patio and deck overheads are posts or columns and beams which run from post to post or from post to ledger. For taller decks with 2x10 framing i might question 4x4 posts. Once you decide the distance measure from the house for the first row of boards.