Treated Lumber For Deck Joists

Until a few years ago the irc didn t have deck joist span tables.

Treated lumber for deck joists.

2x8s 2x10s and 2x12s for joists stair stringers and beams. Position the reinforcing joist tightly against the damaged joist and attach it with 16d 3 5 galvanized nails driven every two feet or fasten it with 3 1 2 inch galvanized deck screws. Deck joist spacing for composite decking remains largely the same as if working with treated lumber. Pressure treated lumber can support more weight and span longer distances than cedar redwood or other woods commonly used for building decks.

It s also much less expensive. Steel post cap connectors plywood post to beam cleats other connectors deck porch railings code requirements safety deck framing tables codes specifications questions answers about allowable spans for deck floor or porch framing. Fsc standard kiln dried regularised c16 treated carcassing 200 x 47mm. Most composite and pvc decking.

This ensures that. Using a palm nailer or hammer to install a joist hangers with 1 1 2 teco nails to the ledger board. Take a few minutes occasionally to pull out the leaves twigs and other debris that gathers between deck boards especially where the decking crosses joists. Composite decking brands also generally require 12 inches o c joist spacing for 45 degree or angled composite deck board applications.

The majority of composite deck board brands including trex timbertech and more require deck joists spacing to be at 16 inches o c. Deck beam span table deck joist span table deck joist rule of thumb deck porch construction structural fasteners deck porch post beam connectors. Always fill all the nail holes for deck harware. Inspect the board and trim off the rougher edge.

Pressure treated lumber is the logical choice for the structural part of your deck the posts joists beams and other members you normally don t see. 5 4x6s and 2x6s for decking. Use pressure treated lumber when you install the joists. 6x6s for support posts and plywood.

A drywall saw works great for this. It has a much higher resistance to moisture than ordinary lumber even more than rot resistant types like redwood and cedar. Decking sleepers timber sleepers timber decking composite decking decking accessories decking protection. If you re building a new deck cover the joists with rubbery adhesive backed flashing tape.

45 mm 1 70 mm 1 95 mm 1 120 mm 1. Treat all sides of the reinforcing joist with a clear sealer and let it dry. But the 2015 irc included a new one table r507 5 that will make it easy for deck builders to spec a joist size for a given span and joist spacing. Decks get wet and may be framed with incised treated lumber so spans may have to be adjusted.

On center for standard straight composite decking installation. Treated wood is generally available as dimensional stock in 2x4s 2x6s 4x4s and 2x2s for rail components.