Concrete Form tubes

optionclick · 8 Jan 2009

Does anyone know where I can get these in the UK?
Most Google searches bring up US sites/companies.

I'm going to be using them to make footings for a ground-level deck (i.e. attach the beams directly to the concrete, rather than posts.

thanks in advance.

WabbitPoo · 8 Jan 2009

What size and shape do you intend to make? If cylindrical you might use plastic pipe eg soil pipe or down pipe. If square could you not make your own from say, ply?

optionclick · 8 Jan 2009

was looking at cylindrical.

Not entirely sure on diameter yet - do you have a recommendation (and also hole depth) for a ground level deck using 6x2 joists?

WabbitPoo · 8 Jan 2009

The size of your supports depends on the ground conditions. Surface area in contact with the ground is key on softter ground (spreads the load) whereas in flinty, stoney soil needs a bit less support. Look at the many posts about decking. The easiest method for a DIYer is to sink concrete blocks (breeze blocks) into the soil, and have the frame sit on those.

optionclick · 12 Jan 2009

Breeze blocks - really?

Are there certain types or dimensions that would be more suited? They wouldn't be embedded as deeply as poured footings, surely?

Presumably the same prep approach would work - i.e. compacted gravel at the bottom of hole?

WabbitPoo · 12 Jan 2009

No, depth has little relevance to most of the supports. You WILL need support somewhere which stops lateral movement of the frame - eg fixed to an existing wall; failing that, yes use posts sunk well in to concrete.

The rest of your supports are really just there to support the wght of the structure, so no need for depth particularly.

All this applies to standard low level decks.

Truly, search other decking posts in this forum.

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Concrete Form tubes

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