Installing composite decking on concrete


Old 01-16-12, 05:41 PM
Thread Starter
Join Date: Jan 2012
Location: USA
Posts: 1
Received 0 Votes on 0 Posts
Installing composite decking on concrete

We have an ugly (my wife says) concrete patio. I was thinking of laying a deck of composite decking right on the concrete and screwing the boards down into anchors set in the concrete. Would that work? Any ideas or problems seen?
Sponsored Links
Old 01-16-12, 05:45 PM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Location: USA
Posts: 23,890
Received 302 Votes on 275 Posts
sounds like a bad idea to me... when you say that you are thinking of "screwing the boards down into anchors set in the concrete" what exactly are you thinking of doing? anchoring treated 2x2's down to the cement so that you have something to screw to?
Old 01-16-12, 08:48 PM
fewalt's Avatar
Join Date: Feb 2001
Location: sw VA
Posts: 3,100
Received 0 Votes on 0 Posts
Or, you could think about building 3' x 3' panels and lay them down checkboard fashion. Easy to move and clean underneath.
4' x 4' could get a bit heavy to lift/move.

Old 01-17-12, 12:26 AM
Join Date: Mar 2000
Location: Arlington, WA
Posts: 9,238
Received 0 Votes on 0 Posts
If you are talking about using anchors to attach the composite deck boards directly to the concrete, don't do it. Compostie decking needs ventalation under it, not laying flat on a concrete slab.

At the very least, put down 2X sleepers on the slab (attach them with Tapcons, NOT anchors), and use 2" deck screws to attach the decking to the sleepers. And orient the sleepers so that they are perpendicular to the house wall, so the decking is parallel to the wall. The slab slopes away from the house -- you want the sleepers to run in whatever direction that slope is. Otherwise, they will become dams, preventing the water from being able to drain properly.
Old 01-17-12, 04:27 AM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,967
Received 3 Votes on 3 Posts
Cheaper, more permanent method would be to have someone come in, score the slab to look like stone, stain and finish the surface. Then it will be pretty and won't be a "deck". Sometimes DIY falls short.....not often, but it happens.
Old 01-17-12, 06:05 AM
Group Moderator
Join Date: Oct 2004
Location: WI/MN
Posts: 19,416
Received 62 Votes on 58 Posts
I'm with Chandler - I'd look into modifying the appearance of the concrete.
Old 01-21-12, 09:31 PM
BridgeMan45's Avatar
Join Date: Oct 2011
Location: USA
Posts: 3,196
Received 0 Votes on 0 Posts
Or, if you want to go on "the cheap," rent a sand blaster, and give the entire surface a brush-off blast to (uniformly) expose all of the aggregate near the surface. Then give it a coat or two of Kure-N-Seal, and watch the wifey smile and giggle at how nice it looks, and brag to her friends about what a bnilliant artist you are!

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Ask a Question
Question Title: