You should also know the size of the post you are considering to use.
Post and beam deck roof.
The beams support the roof rafters or joists which in turn hold the roofing material.
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.
Plan in advance by knowing the correct deck beam span to use.
Fewer posts on upper level decks are typically more desirable to the occupants and this drives the use of larger framing materials for longer spans.
Minimum sizes of posts and beams are set by engineering requirements and are strictly governed by local building codes.
Code for nailing they will still check may warp and will shrink at the splices which allows moisture to get trapped with dirt promoting the compromise of the beams over time.
Although this joint may not get the respect it deserves it is a critical load path connection that needs to keep the post and beam aligned while properly transferring deck loads to the footing.
During your planning stage don t forget to consider the spacing for your beams.
Sep 7 2017 explore chris dague s board post beam roof on pinterest.
Beam span maximums are based on a maximum anticipated live load.
See more ideas about post and beam timber frame timber framing.
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.
The span of a beam is dependent on a few variables.
The most under appreciated connection on a deck frame is probably the one between a post and the beam it supports.
I put the built up beam span table below but i would very rarely use a built up beam in an exterior application where they are exposed to the moisture conditions like a deck.
The species of lumber size of lumber and the load it carries.
Here s the frame of a simple post and beam deck.
Deck beams and posts beam spans post sizes by alter how to attach a patio roof an existing house diy pj roof beam span table newgroun co a to residential decks and.
Maximum rafter spans for a patio roof in areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot.
And most of that frame is below the deck floor so you get great views from your deck.
See the deck post size table to make that determination because it will affect the size of beam you choose.
Instead of lots of skinny sticks and plywood panels decks use thicker 4 6 and 6 6 posts and stronger beams that span openings 6 or 8 feet wide and 8 or more feet high to create an open frame.
