Decking subframe design guidance decking beam span guidance.
Spacing between deck boards uk.
The width of the nail is 1 8 inch.
Spacing between deck boards provide a few critical functions.
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.
Adjust the spacing between deck boards gradually over the next 10 rows of decking until the distance to the house is equal.
Some builders reduce joist spacing to 12 on center to strengthen the deck frame or to increase maximum allowable joist spans.
We recommend beams are constructed from two 44 x 145mm q deck deck joists and are placed at maximum centres of 1 8m.
Many jurisdictions following the international building code which requires a minimum 1 8 inch spacing between boards.
Generally an acceptable gap between deck boards is between 1 8 inch and 1 4 inch.
Spacing between deck boards.
Most decking is not strong enough to support longer spans than 16.
Larger gaps such as 1 4 allow more of this material to fall through the deck.
Measure to the house at both ends and in the center when you get within about 5 ft.
Most decks use 16 on center spacing for joists.
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.
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.
Position the fixing at least15mm from end of deck board.
If you have poor ventilation wider is always better.
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.
Both sizes have their pros and cons.
Joist spacing for composite decking.
Gaps that are narrow 1 8 can catch debris specifically on top of the joists and can be difficult to clean out.
Joining two boards in a run.
Ensure there is a minimum gap of 5 6mm between each deck board.
Adjust spacing between deck boards.
In this instance the maximum span between deck post centres is 2 07m c16 or 2 24m c24.
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.