I'm putting a shower in my basement. The shower base is a Sterling pre-fab five feet wide and 34 deep.
Unfortunately, the concrete floor is about a quarter inch higher in the middle, where the drain is, than at the left and right sides. From back to front it is fairly level.
I could probably grind down the middle but that's a LOT of work and I'm doing this by myself and dragging a 200+ pound grinder up and down the steps doesn't sound like fun. Plus a quarter inch is a lot of grinding.
So, I think my options are to use a leveling compound to make the whole thing nice and level.
Or, to put down a layer of concrete mix and sink the base into that. I think the concrete needs to be about a quarter inch deep at the highest point - making it 1/2 deep at the edges.
My worry with both of these options is the binding of the compound or cement to the current cement floor. And, also the possibility of either breaking up at some point and having a creaking, uneven shower floor.
Actually, I'm more worried about the leveling compound (basically portland cement?)
Any other suggestions or preferences.
[Yes, I could build my own base but I don't have the time and am not that ambitious at the moment.]