We’re planning zero-threshold showers in the conservatory and master bathrooms.
Last weekend Charlie and friend began laying the sub-floors in the new bathrooms that will bring the flooring up to the level of the shower pans.
The first layer is paper (to keep the floor from squeaking). On the paper is a piece of 1/2″ CDX plywood with openings cut to match the plumbing fixtures and wall configurations.
The plywood is screwed down every 9 inches (or so) with coated deck screws: 2″ screws into the floor joists and 1-5/8″ screws in the field.
On top of the first layer of plywood is another sheet of paper and another piece of plywood.
All this gets screwed down in the exact same way. Friend did the cutting and Charlie did the screwing.
That’s as far as we got on Saturday because that’s a lot of screwing which, by the way, is accomplished with a cordless ratchet hammer drill.
Next task: Lay down Hardiebacker with a layer of thin-set mortar and screws.
Does working on a big project give you a sense of satisfaction? Or frustration?