How much space do you need between decking joists?

In most cases, decking suppliers often recommend 8-16 inches for decks for commercial use, whereas for residential decking, the standard spacing is anywhere from 10 to 16 inches.

How is the spacing of the bearers determined?

In order to determine the joist spacing you need to calculate the floor load width and/or the roof load widths. Then you can determine the minimum sectional size of the timbers required both bearers and joists.

Are 2×6 strong enough for deck joists?

2×6 joists should only be used on ground-level decks that do not require, and will not provide for, any guards. Most decking is not strong enough to support longer spans than 16″. Some builders reduce joist spacing to 12″ on center to strengthen the deck frame or to increase maximum allowable joist spans.

How far can a 2×6 decking span without support?

A decking board made up of 2x6s can span a maximum distance of 24 inches from joist to joist.

What should be the spacing between deck boards?

We recommend beams are constructed from two 44 x 145mm Q-Deck deck joists and are placed at maximum centres of 1.8m. In this instance the maximum span between deck post centres is 2.07m (C16) or 2.24m (C24). Annotated decking diagram Joist and Deck Board Spacing Guidance

What should be the beam span of a deck?

Decking Subframe Design Guidance Decking Beam Span Guidance We recommend beams are constructed from two 44 x 145mm Q-Deck deck joists and are placed at maximum centres of 1.8m. In this instance the maximum span between deck post centres is 2.07m (C16) or 2.24m (C24). Annotated decking diagram Joist and Deck Board Spacing Guidance

How big should the joist spacing be on a deck?

Most decks use 16″ on center spacing for joists. Most decking is not strong enough to support longer spans than 16″. Some builders reduce joist spacing to 12″ on center to strengthen the deck frame or to increase maximum allowable joist spans.

What’s the maximum spacing between Deck post centres?

In this instance the maximum span between deck post centres is 2.07m (C16) or 2.24m (C24). Annotated decking diagram Joist and Deck Board Spacing Guidance The table below shows figures for domestic applications (uniformly distributed load 1.5kN/ m2) and commercial applications (uniformly distributed load 4.0kN/ m2).