Custom Shower Pan Alternative - Tile Advice

[jayetnier]

I am remodeling a bathroom, adding a large walk in shower - 42 x 78. I will use a 40" linier drain at the entry of the shower. This makes for a single slope install. Is there a reason cannot/should not build an angled subfloor with 4 2x4's cut at slope, anchored into subfloor, sheathed with OSB, then add waterproof board (Schluter/Wedi/Etc.), then add corners and drain? What am I missing?

Thanks
Jay

 

[Tile Marble Granite]

I would say it could be done if your carpentry/plumbing/waterproofing/tiling skills are precise. No room for errors. Recess the floor as needed. I would use a wet room kit such as Schluter etc. Use 3/4'' plywood instead of OSB. It can be done. Send us some pictures. Good luck!