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For doubling up rafters/joists to make a trimmer or header for a stairs/roof window, I see a few ways recommended in the forums: - Bolting with M10/M12 at 600 centres with a toothed timber connector between members - 10d nails at 100 centres - Grade 6 100mm screws at 150 centres If the...

Hi all, I'm converting a loft and have hung 6x2 c24 joists between 2 steel beams (that go from gable to gable). The 6x2s rest on a central wall at first floor level. I wanted to keep the joists as low as possible to maximise headroom. For the stairs trimming and trimmer joists, I have 2...

Hi all, I'm planning on installing a 2-turn stairs as follows up to the loft. I'm wondering - what are the minimum fixing points needed for the stairs. The stringer along the red line can be attached to a block wall. The green line will be a stud wall and the post marked "A" could be supported...

Hi all, My joist hangers are 50mm wide while my 6x2s are only ~40mm wide in reality. It means there is a 9mm gap. If I squeeze and nail directly, the top of the hangers are almost touching each other. Is a 9mm shim cut from an offcut the way to go? Are the 30mm twist nails sufficient then for...

I know a single rafter section can be removed to fit a Velux but how about 2 or 3 rafters for wider windows? In all cases, rafters, headers and trimmers would all be doubled up. Thanks

Just wondering what mortar mix to use for under a padstone that's bearing a large steel beam? The padstone will be sitting on 4" blocks. Would a standard 4:1 mix (no plasticiser) do the trick or would I be better off going with a 3:1 or sharp sand mix? Thanks

Hi all, I'm looking to fix an outward opening gate to the inside face of a pillar (built from concrete blocks). I'm thinking of using 24"/30" hook and band hinges. Can these hook plates be fixed into concrete block? I see most people fix them into timber gate posts but I want to avoid that to...