Spacing Between Deck Boards Uk

Decking subframe design guidance decking beam span guidance.

Spacing between deck boards uk.

For timbertech azek decking it s recommended to have a minimum 1 8 to 1 4 side to side gap between deck boards. Proper side to side deck board spacing allows for air water and debris to flow around the decking leading to a long lasting low maintenance deck. Position the fixing at least 20mm from the edge of the deck board. Joining two boards in a run.

A convenient way to get consistent spacing is by using a 6 penny or 8 penny nail between each course of decking. Some builders reduce joist spacing to 12 on center to strengthen the deck frame or to increase maximum allowable joist spans. Position the fixing at least15mm from end of deck board. We recommend beams are constructed from two 44 x 145mm q deck deck joists and are placed at maximum centres of 1 8m.

Generally an acceptable gap between deck boards is between 1 8 inch and 1 4 inch. Larger gaps such as 1 4 allow more of this material to fall through the deck. Adjust the spacing between deck boards gradually over the next 10 rows of decking until the distance to the house is equal. In this instance the maximum span between deck post centres is 2 07m c16 or 2 24m c24.

Joist and deck board spacing guidance. If you have poor ventilation wider is always better. Adjust spacing between deck boards. Ensure there is a minimum gap of 5 6mm between each deck board.

Most decks use 16 on center spacing for joists. Most decking is not strong enough to support longer spans than 16. Both sizes have their pros and cons. The most common spacing measurement between deck boards is 1 8 inch.

The primary function is to drain water from the deck. When joining two cut deck boards together in a run fix with screws 15mm from the end of each board at an angle to ensure secure fixing into the joists below. Before deciding on how much space to leave between deck boards check with your local building code to see if it covers deck board spacing. Gaps that are narrow 1 8 can catch debris specifically on top of the joists and can be difficult to clean out.

Many jurisdictions following the international building code which requires a minimum 1 8 inch spacing between boards. Spacing between deck boards provide a few critical functions. Joist spacing for composite decking. Cumaru deck board gapping allow a minimum of 1 8 gap between board widths on 4 wide decking and 3 16 gap between board widths on 6 wide decking for drainage airflow and expansion.