How to make this a shower shelf?

Make a box out of 3/4" ply, whatever size you want, fasten it to the studs. You might want to make the top, bottom edge, sides 1-1/2 or more to improve looks, especially if you want to extend it into the room. Then cover everything in cement board, tape with Kerdi tape, then mud and tile

Or build a box out of 2x3s that fits inside that and put backer on the back of it before you put it in and you will have a 1/2" gap between the niche and the other drywall.

67IreneRoad said:

Make a box out of 3/4" ply, whatever size you want, fasten it to the studs. You might want to make the top, bottom edge, sides 1-1/2 or more to improve looks, especially if you want to extend it into the room. Then cover everything in cement board, tape with Kerdi tape, then mud and tile

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Nealtw said:

Or build a box out of 2x3s that fits inside that and put backer on the back of it before you put it in and you will have a 1/2" gap between the niche and the other drywall.

Click to expand...

I watched on YouTube about using a waterproofing membrane.

Mapei Mapelastic Aquadefense

Don't you do the floor pan before the wall?

Nealtw said:

Don't you do the floor pan before the wall?

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There's a rubber pan liner. But it only goes as high as the bench. Doesn't go all the way up the wall.

farmerjohn1324 said:

There's a rubber pan liner. But it only goes as high as the bench. Doesn't go all the way up the wall.

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Is it in now?

Nealtw said:

farmerjohn1324 said:

There's a rubber pan liner. But it only goes as high as the bench. Doesn't go all the way up the wall.

Click to expand...

Is it in now?

Click to expand...

Yes. But not up to the height of that shelf.

farmerjohn1324 said:

Yes. But not up to the height of that shelf.

Click to expand...

Just checking, it looked like you were working off the floor. :biggrin2:
I think the sealer you mentioned is much like Redgard but I don't know enough about different products to give any advice on them. I have used redgard. Just painted on two coats and tiled over that but, properties have been sold so I can't speak to success or failure.

I used the ply method - but they also make these:


https://www.homedepot.com/p/EZ-Nich...VAr7ACh2O8w1pEAAYASAAEgL26PD_BwE&gclsrc=aw.ds