Finished the subfloor

Uli and I finished the subfloor in the kitchen/bath/living room area today. We had already done most of this, but the difficult part was still left to be done. It was difficult because the OSB boards had to be laid directly on the old floorboards, rather than on the laser leveled joists. That means that each board needed to be leveled in itself and leveled with the rest of the floor. We used timber shims to level the boards. In some places it there was over a centimetre between the old floor and the underside of the OSB board.

What this means is that we can now plan the walls. I'm not sure yet if we should do this with breeze blocks or with drywall. If we do go for drywall, I'd rather a stud wall with OSB cladding (probably 16mm OSB or maybe less). The slabs could be fixed to the OSB boards. The advantage is that it would be more stable, it would be easier to take care of soundproofing and later we can hammer nails anywhere at all, rather than having to go and look for the studs.

Until the civil engineer comes there isn't really much point in planning anything though. By the way, the rolls of pipes in the photo below are for network cables. You don't want to pull network cables around the place behind joists and plaster without these pipes.