Porch Roof Post Spacing

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.

Porch roof post spacing. The weight load of your deck also affects the spacing of the posts. In other words the maximum distance it can cover without support from posts. Then find the mid span of the beam that the post supports and extend lines from there back to the line at the joist mid span. Cut the posts to the correct height.

An expert guide on the best posts and beams for your patio roof projects this article covers post column and beam types as well as the best materials for patio posts. 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. This post may contain affiliate links. For typical decks where only a few family members or the occasional extra guest and backyard patio furniture are expected the average 5 foot to 8 foot measurements for post spacing can be used but if you expect heavy loads of any kind you will need to contact an engineer as well as your local building inspector to determine.

A roof protects a house and porch from snow and rain as well as the heat of the sun. Minimum roof pitch for a covered porch. Size your deck beams and headers with our easy to use span table which allows you to cross reference the post spacing and joist length to determine the right deck beam size. For more information see our disclosures here.

Measure down from the door leading to the deck the width of the beams joists boards plus at least 3 inches or to whatever your local code requires. The tributary area is the portion of a deck that s supported by a single post. Attach posts to brackets. Draw a line through the mid span of the joists.

Attach the post brackets to the anchor bolts. However if the spacing is too wide the patio cover s beams will bow under the weight of the joists and roof covering materials. To calculate it for a particular post imagine a plan view of the deck see illustration left. Porch posts in the hope that this may help to equalize the space between posts from one side of the porch to the other.

Only after the cement is completely dry. The determining factor of post spacing is the allowable span of your beams.