Pressure Treated Wood For Deck Framing

Joist spacing for.
Pressure treated wood for deck framing. As an alternative consider upgrading the decking and railings with composite materials bottom right. Building codes for residential decks only require 40 psf. 6x6s for support posts and plywood. For pressure preservative treated southern pine no.
The predominant species of treated wood is a regionally available softwood. Pressure treated lumber top right is the standard material to withstand weather. Radius edged cedar pressure treated and composite decking share similarities. For conventional guardrail post installation bolted to the side of the framing larger framing will provide more strength in the rails.
2x6 joists should only be used on ground level decks that do not require and will not provide for any guards. For decking materials always use pressure treated lumber pressure treated decking or treated deck components for any outdoor project. Pressure treated lumber that s designated for above ground use can be used for deck railings but it shouldn t touch the ground. 2x8s 2x10s and 2x12s for joists stair stringers and beams.
It resists mold and mildew and easily cleans up with soap and water. Species sizes of pressure treated wood. Find pressure treated lumber at lowe s today. They re all rot resistant to varying degrees require 16 in.
The longer the joist the more area of deck the joist supports and thus the beam supports. 5 4x6s and 2x6s for decking. All three choices 5 4 x 6 in. Find decking pressure treated lumber at lowe s today.
2 grade there is a method that can be used for estimating beam spans for a preliminary design. Probably the most difficult decision to make when building a wood deck is what type of decking to use. Most pressure treated lumber is wet when delivered directly from the store so you ll need to let it dry before staining typically for six months. For upper level decks 2x10 is recommended as the minimum size to use for strong guard post connections.
Some pressure treated wood products provide warranted protection against termites and fungal decay. Treated wood is generally available as dimensional stock in 2x4s 2x6s 4x4s and 2x2s for rail components. For any part of your deck that comes in contact with the ground or is critical to the structure s safety make sure you re using wood designated for ground contact.