Building a new attached elevated deck

9 Jan 2023
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United Kingdom
Hi all,

We had an extension built a couple of months ago, it’s a modular steel frame extension. I want to build an elevated attached deck(to avoid having to dig holes right next to the foundations), 4.8m wide by 2.8m long. My question is what can I use to attach the ledger on the steel frame. The frame is galvanised steel, 4mm thick. With bricks it’s pretty straight forward but with metal it gets a bit complicated. I cannot use bolts and nuts as it’s all done now. Any ideas?
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it needs to be below 300mm above the natural ground level ajacent to the the decking to avoid the need for planning

dont know the answer to your actual question though
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