Help nice people of the internet. I’m shortly Going to be boarding my loft, I want to strengthen the joists by securing cross timbers on top of the existing joists. I’ve read about “bracing” the joists underneath but I can’t work out what this means. Does anybody have a clue?
I’m thinking of using 38x89 timber on top of existing joists with 400mm spaces. Then screwing the boards on top of this. Have read about using cheaper plywood instead of chipboard, would be more expensive but seems like it would be sturdier to me. So I’m unsure what to do there. Any advice would be greatly appreciated
