Decking over concrete

chidylan · Nov 18, 2006 2:23 pm

I was advised to build my alfresco area without the concrete slab if i wanted to have that area covered in decking later on to preserve the wood etc and avoid damage to the wooden decking via rotting etc. can anyone help!???? or suggest if this should or shouldnt be done. totally confused as to which option to proceed with.

Adrian B · Nov 18, 2006 7:22 pm

Hi there,

To be honest, why spend the money getting a slab poured, then decking iover the top of it? It seems a waste of your money, as you wont get much airflow underneathi it.

My house (2 weeks to move in:)) has not slab in the alfresco0, and I am measuring up for posts as we speak.

Adrian B

chidylan · Nov 19, 2006 4:46 pm

i think it actually comes standard (the concrete slab) with the alfresco area

how much are the decking costs?

Dukekamaya · Nov 19, 2006 6:10 pm

PM me the size and I can give you a quote for decking materials. Do you have a preference for type of decking ?
There are no problems decking over a slab, but is a waste of money if the slab hasn't been poured yet.
Luke

morganj · Dec 22, 2006 5:52 pm

Sory to hijack your thread but we have concrete in our courtyard which I dread having to pull up - is it easy to deck over the top? Would you have to raise the height by much? Cheers.

Dukekamaya · Dec 22, 2006 8:44 pm

You can actually achieve a lower height if needed by fixing H4 90x70 treated pine as joists directly to the concrete. If you were going to go this close to the groung I'd probably recommend treated pine decking. If height isn't a problem you can more or less proceed as per a normal deck layout.

joenk8i · Dec 27, 2006 6:47 am

Excuse me guys if this appears a silly question but I am only just trying to feel my way around this whole concept of building and renovating!

I wanted my husband to build a decking for our alfresco and I thought it would be a good idea to concrete it underneath so weeds do not grow through the planks of wood. Is this completely wrong??

Advise would be great. Thanks.

Dukekamaya · Dec 27, 2006 7:59 am

complete waste of time and money - just lay some weed matting.