Deck board spacing
by
Wes
+4
Why is there always spaces between deck boards on an outside deck?
6 answers
-
I'm not sure but I would guess that it is so rainwater can run through.
Tobi
on Feb 18, 2016
-
There needs to be spacing through the boards to allow for the expansion of the wood.
Janet Pizaro
on Feb 18, 2016
-
As Janet Pizaro pointed out - timber will expand and contract with heat and cold. If the timber boards were butted right up against each other there would be no room for them to expand when they got hot and the timber could warp or lift. Even when laying timber flooring in houses, the timber usually has to sit awhile till it has settled as it is a living thing so to speak. If they just whacked the timber down while it was still green and had not yet adjusted to the temperature inside, when laid it could end up having gaps through contraction or swell and lift through expansion. I hope this explains it a little. I am no expert, just what I have picked up along the way.
Carole
on Feb 18, 2016
-
Wes the spacing allows for air flow, drainage and contracting/expanding of the decking materials.
MN Mom
on Feb 18, 2016
-
When it rains the boards will swell a little. Having the space keeps them from warping.
Theresa Barnett
on Feb 18, 2016
-
In real wood (as stated) for the expansion of wood in high humidity areas. However the type of wood and the time of the year makes a huge difference too. I found this link that gives a very detailed information. http://www.mcilvain.com/what-size-gap-should-i-use-between-my-decking/
The Garden Frog with C Renee
on Feb 18, 2016
Sign Up to Answer
Related Discussions
Suggested Project Book
