Ensure there is a minimum gap of 5 6mm between each deck board.
Spacing between deck boards uk.
Both sizes have their pros and cons.
Position the fixing at least15mm from end of deck board.
Joist and deck board spacing guidance.
Gaps that are narrow 1 8 can catch debris specifically on top of the joists and can be difficult to clean out.
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.
Larger gaps such as 1 4 allow more of this material to fall through the deck.
Joining two boards in a run.
Generally an acceptable gap between deck boards is between 1 8 inch and 1 4 inch.
Some builders reduce joist spacing to 12 on center to strengthen the deck frame or to increase maximum allowable joist spans.
Spacing between deck boards.
Decking subframe design guidance decking beam span guidance.
Most decking is not strong enough to support longer spans than 16.
The most common spacing measurement between deck boards is 1 8 inch.
A convenient way to get consistent spacing is by using a 6 penny or 8 penny nail between each course of decking.
For timbertech azek decking it s recommended to have a minimum 1 8 to 1 4 side to side gap between deck boards.
Many jurisdictions following the international building code which requires a minimum 1 8 inch spacing between boards.
Adjust spacing between deck boards.
The width of the nail is 1 8 inch.
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.
We recommend beams are constructed from two 44 x 145mm q deck deck joists and are placed at maximum centres of 1 8m.
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.
Joist spacing for composite decking.
Spacing between deck boards provide a few critical functions.
Most decks use 16 on center spacing for joists.
Position the fixing at least 20mm from the edge of the deck board.
Adjust the spacing between deck boards gradually over the next 10 rows of decking until the distance to the house is equal.
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.
Measure to the house at both ends and in the center when you get within about 5 ft.