right, i have decided to use chipboard for the loft, but the measurements have come out weird regarding the size of each board, for e.g. about 5 joist beams have come to a length of approximately 214mm, now the diy shops only sell boards that go from 2400mm*600*18mm
what do i do? cut it up to 3 or 4 joists beam each? or leave it as it is, which would leave bits hanging off the end of it, therefore leaving unsafe areas? i know that i have to screw it down leaving the end bit of the wood to half fill a joist beam, as in normal floorboarding does