How far apart should joists be on a deck NZ?

How far apart should joists be on a deck NZ?

Joist spacings are in the manufacturer’s instructions and are generally between 400 and 450 mm.

What size beam do I need for my deck?

Dimensional Lumber Deck Beam Span Chart

Joist Spans
Southern Pine 3-2X10 12′-9″
3-2X12 15′-0″
Douglas Fir-Larch, Hem-Fir, Spruce-Pine-Fir, Redwood, Cedars, Ponderosa Pine, Red Pine 3X6 OR 2-2X6 5′-2″
3X8 OR 2-2X8 6′-7″

How far can joists span NZ?

140 x 45mm joists can span more than 1.8m regardless of if they’re spaced 400mm, 450mm or 600mm apart. Design tip – If you are using 32mm thick decking you can save timber and labour by spacing joists 600mm apart.

How far can you span a deck between posts?

Ideal deck post spacing is 8 feet or less. The distance between deck support posts depends on the type of wood species used and the size of the joist and beam. There is no minimum span, and maximum spans can reach up to 15′.

Is C16 timber OK for decking?

Deck boards are a key structural part of the deck, and they should always be graded – this helps to ensure strength and durability and could also lead to cost savings on the sub-structure. The most common timber grades for softwood deck boards are C16 and C24.

What is the spacing for joists?

How Far Apart Should You Space Deck Joists? The short answer: deck joists are typically spaced either 12 inches or 16 inches apart, on center. (On-center means the length from the center of one joist to the center of the next joist, rather than a gap from edge to edge).

How far can a 2X6 joist span on a deck?

24 inches
Decking boards span from joist to joist. If you use 5/4 decking, joists must be no farther apart than 16 inches. Decking with boards with a 2×4 or 2×6 span can be 24 inches.