Timber tongue and groove decking is a specialty lumber product, constituting an important part of modern timber construction, that can be used for many applications to provide an all-wood appearance.

Fastening: At each support, two-inch decking shall be toenailed through the tongue and face nailed with one nail using 16d common nails. Span: Our Fir & Larch Select Struc can easily span 7′ between supports.

Decking made of 2x4s or 2x6s can span up to 24 inches. If you will run decking at an angle, you might need to put the joists closer together.

Romtec uses tongue and groove (T&G) timber decking as the standard roof decking material on every building. T&G roof decking provides roofs with several advantages that make it ideal for pre-engineered buildings. T&G is the Romtec standard because of its durability, its variety materials, and its attractive appearance.

Registered. We use 1×6 up to 3′ but the roof is then strapped after with 2×4 then sheathing. On 24″ 1×6 will work but put a layer of sheathing down to eliminate the roofing nail issue.

Composite Tongue and Groove Boards As one of the most popular types of decking, dozens of companies produce composite decking, but only a handful make planks with a tongue and groove profile. The currently have one type of board that’s 3 1/8” x 7/8” and available in 10′, 12′ or 16′ lengths.

2-grade 2×6 joists can span up to 10 feet 9 inches from beam to beam when spaced the standard 16 inches apart with a maximum live load of 30 inches per square foot.

2″ thick
Tongue and groove wood decking should be installed with the tongue up on sloped roofs and outward in direction of laying on flat roofs. Pattern faces should be down and exposed on the underside. Each piece of 2″ thick decking should be toenailed through the tongue and face nailed with one 16d common nail per support.

Tongue & Groove Boards T&G roof decking, however, looks classy and rich. In fact, T&G boards are most frequently used when the sheathing is visible from the inside such as in cathedral ceilings or in some cabin-style homes, especially if the span of the rafters is greater than 2 feet.

The recommended maximum gap between roof sheathing boards for low-quality, 3-tab shingles is 1/4-inch. The correction recommended by manufacturers is installation of an additional layer of 3/8-inch minimum exterior-grade plywood or OSB roof sheathing on top of the original wood-board roof sheathing.

A 2×6 spaced 16 inches apart can span a maximum distance of 13 feet 5 inches when used as a rafter, 10 feet 9 inches when used as a joist, and 6 feet 11 inches when used as a deck beam to support joists with a 6-foot span.

You can use 2×6 dimensional lumber as deck joists for ground level decks that don’t require a handrail. This includes decks that are 30 inches or less from the ground. This is because handrails typically attach to the rim joists of a deck.

Actually, the nominal size is often never the actual size. 1×4 are 3/4″ x 3-1/2″, 2×4 are 1-1/2″ x 3-1/2″. Again, 2×6 are 1-1/2″ x 5-1/2″. Secondly, how much does a 2×6 cost? Lumber Prices: Estimating the Cost of Dimensional Lumber Just so, how long is a 2x6x8?

In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. A 2×8 up to 12 feet; 2×10 to 15 feet and 2×12 to 18 feet. The larger the deck, the larger the joists.