They generally don't make H4 in framing timber sizes as it's used for on and in-ground purposes. H4 sizes are limited to posts and sleepers. You could use the H3, but coat it with TWA Woodcare 300g Ecoseal Tanalised Timber Treatment to enhance its rot resistance.
As this is pavers and not a concrete slab, it limits the options. If it was concrete, you could support the timber on plastic shims, and Dynabolt threw it into the slab. Or, attach angled brackets to the concrete. You could consider removing pavers at the support points and concreting in half stirrups.
Just thought I’d ask that if h3 has a 26mm space between itself and the paving. Would that be enough to be able to use it?? 🙏
As mentioned previously @beemerx65, the 26mm is still considered a very minimal gap, but technically it is above ground which H3 is suitable for.
Hi good day @hadi
I am thinking of doing a decking to my backyard same as u I got pavers any help how I am going to fix for non movement?
Hi Mitch. What spacing of these feet would you recommend. Also is it advisable to attach joists to the house 🙏😁
Based on your plan, I suggest spacing the feet every 750mm. Adding a ledger to mount the joist is always a good idea. Let me tag my colleague @MitchellMc so that he's made aware of your question.
Please keep us updated with your progress, we look forward to seeing the start of your decking project.
If you need further assistance, please let us know.