Largest Wood Roof With 4 Posts

Finishing 2 post deck roof.

Largest wood roof with 4 posts.

If you move up to 4 by 8 you re usually allowed to span up to 10 feet between posts. The beam supports 17 2x6 joists. 2 are indicated below. Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no.

Micronized copper azole pressure treated for protection against termites rot and fungal decay. Keep in mind that these figures depend on the size and spacing of joists and the overall structural loads. Once your roof is constructed create drainage drill holes in wood marked a in roof plans and on bottom of the planters. A 4 by 10 can usually span up to 12 feet between posts.

Total load psf duration factor live load psf notes. Roof type 55 1 15 40 snow shingle 55 1 15 30 snow tile 47 30 snow 40 20 snow 1 25 20 construction or rain not snow load 55 1 15 40 snow 47 1 15 30 snow 40 1 15 20 snow 40 1 25 20 rain or constn. Live load is weight of furniture wind snow and more. 1 in 25 4 mm.

The joists are holding the usual 4x8 plywood sheets for the shingle roof. 1 ft 0 3048 m. When attaching the flexfence brackets onto the rails allow for the brackets to move freely swivel. It is currently supported by 4 4x4 wood posts which are rotting away.

Dead load weight of structure and fixed loads 15 lbs ft 2. And the last joist which is 15 o c. For all except the last two on the north side of the terrace which are 20 5 o c. It can be painted or stained.

Pressure treated pine lumber has been treated for ground contact and is ideal for retaining walls decks stair support posts and walkways. Theseoverallspansarebasedonnds 01 with 4 nominal bearing each end 24 o c. The joist spacing is 24 o c. Do not over tighten.