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I'm still getting counselling since then. I've booked a few more sessions to cover me until your drive is finished.
I
iDIY
I have decided to go for the latter using 47x200 timbers. Even allowing for strutting it works out very little cost difference to using a web Packer and hangars.
Structurally either would do.
But however you do it, you need to end up with the top of the timber joist at least 10mm above the top of the steel beam. Why? Over time, once the central heating is on, the joists will dry out and shrink; if you initially set them level with the top of the steel, once the timbers shrink, you will end up with a 'hump' over the steel beam as the flooring gets forced up.
But however you do it, you need to end up with the top of the timber joist at least 10mm above the top of the steel beam. Why? Over time, once the central heating is on, the joists will dry out and shrink; if you initially set them level with the top of the steel, once the timbers shrink, you will end up with a 'hump' over the steel beam as the flooring gets forced up.
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Cancel them. Job done.
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