Good Morning, I'm new to the forum and I'm looking for some advice on how to proceed on a project to replace the bedroom floor. The room dimensions are 10'8'' x 9'6'' the original flooring is chipboard in 3/4'' x 9'6'' x 4'1'' sheets. Due to a poor external repair prior to our purchase water has tracked into the the chipboard making it go spongy. We were unaware of this until the bed punched a whole through the floor. I know what you are all thinking but it was not like that! The joists are 1''3/4 x 4'' across the width of the room. There are no longtitudanal joists or noggins. The centres of the joists are at 16'' centres. I am proposing to use 18mm Elliotis ply WBP. This comes in 1.22m x 2.4m sheets (4' x 8'). Due to a very narrow hallway i'm going to have to cut these in half to get them in the room. So the questions that i have are these:- 1. Do I need to be using noggins on the unsupported board edges? 2. Where the boards go under the skirting (which i have left in place) do I need noggins there? Difficult to do and unlikely to have much foot fall? 3. If noggins are required what size? Is 1''3/4 x 2'' ok? 4. I looked at some "how to's" on here and i'm not sure which is best to use, noggins in line fixed by screws/nails at an angle from the side or staggered noggins screwed through the joists? 5. What size screws should i use? 6. On top covering the joists and the space in between is what looks like waxed paper/menbrane. I'm guessing water or damp prevention. Is this easy enough to get hold of? Where? Thanks in advance for your assistance.
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