I'm planning a tiered deck for my garden and am researching how to do the foundations/subframe for the raised portion of it. I'll be going to 1 metre high on the upper tier, and around 0.5m on the second tier.
My ideal solution involves concrete footings (raised above ground level using a timber concrete form), bolting down a post support like this, then fastening the post to the support. Beams then bolt onto the posts.
A second method I've been recommended to do is just build piers out of blocks/bricks and secure the beams directly to them. I've been told that I can lay these directly onto existing concrete flags, but personally I think that would cause them to move a bit and stress the foundations so this would probably need concrete footings too, correct?
Can anyone recommend which method will be better? I need to build six piers/posts for my current design, so the post/support solution would cost about £30 per post (£12 for a 4x4 post, £8 for the steel support, £5 for the M10 bolts/sleeves, £5 for the concrete). So block piers obviously much cheaper than all that!
An additional constraint is I want to be able to access under the decking and so that rules out building a solid wall out of blocks, which would have been a nice solution.
Thanks!
My ideal solution involves concrete footings (raised above ground level using a timber concrete form), bolting down a post support like this, then fastening the post to the support. Beams then bolt onto the posts.
A second method I've been recommended to do is just build piers out of blocks/bricks and secure the beams directly to them. I've been told that I can lay these directly onto existing concrete flags, but personally I think that would cause them to move a bit and stress the foundations so this would probably need concrete footings too, correct?
Can anyone recommend which method will be better? I need to build six piers/posts for my current design, so the post/support solution would cost about £30 per post (£12 for a 4x4 post, £8 for the steel support, £5 for the M10 bolts/sleeves, £5 for the concrete). So block piers obviously much cheaper than all that!
An additional constraint is I want to be able to access under the decking and so that rules out building a solid wall out of blocks, which would have been a nice solution.
Thanks!
