Larger gaps such as 1 4 allow more of this material to fall through the deck.
Spacing between deck boards uk.
Position the fixing at least 20mm from the edge of the deck board.
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.
The width of the nail is 1 8 inch.
Joist and deck board spacing guidance.
Some builders reduce joist spacing to 12 on center to strengthen the deck frame or to increase maximum allowable joist spans.
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.
Measure to the house at both ends and in the center when you get within about 5 ft.
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.
Generally an acceptable gap between deck boards is between 1 8 inch and 1 4 inch.
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.
Joining two boards in a run.
Spacing between deck boards provide a few critical functions.
In this instance the maximum span between deck post centres is 2 07m c16 or 2 24m c24.
Ensure there is a minimum gap of 5 6mm between each deck board.
Most decking is not strong enough to support longer spans than 16.
Most decks use 16 on center spacing for joists.
Decking subframe design guidance decking beam span guidance.
For timbertech azek decking it s recommended to have a minimum 1 8 to 1 4 side to side gap between deck boards.
The primary function is to drain water from the deck.
Spacing between deck boards.
Both sizes have their pros and cons.
Gaps that are narrow 1 8 can catch debris specifically on top of the joists and can be difficult to clean out.
A convenient way to get consistent spacing is by using a 6 penny or 8 penny nail between each course of decking.
If you have poor ventilation wider is always better.
Adjust the spacing between deck boards gradually over the next 10 rows of decking until the distance to the house is equal.
We recommend beams are constructed from two 44 x 145mm q deck deck joists and are placed at maximum centres of 1 8m.
The most common spacing measurement between deck boards is 1 8 inch.