sol381

You can't really fix them, once MDF has swelled up it's stuffed. Rip them out and replace with either pine or meranti, seal the bottoms, and make sure they are not buried in the screed / tiles. This was a common way it was done in the past because the chippy was finished before the tilers started (project homes pretty much done like this). Best way is to put the timbers on top of the tiles, after they are grouted. Leave the jamb's off the floor about 2mm, and fill the gap with a...

As with most DIY warriors, you are overthinking it, building carcasses be it standard or custom sized is entry level carpentry. Like anything, once you start to overthink it you just complicate a simple task and turn a job that should take you a week, into one that drags out for six months (I have seen this happen on many occasions) and costs four times as much. Materials Birch ply is not the most economical alternative to build carcasses from at the moment, not that it ever was an...