At what point are these brackets installed in the build process?
Brackets must be mounted at the rough-in stage. You must have access to the studs inside the framed wall to properly mount.

What is this used for?
The Brack Kit [Luxe] is a structural support for any application where there is an engineered suspended structure. (ie. floating shower seat, shelves, vanity, etc.)

Can I use foam board in between the brackets?
No - foam board is not structurally sound. You must use a structurally sound material (ie. 3/4" plywood, aluminum honeycomb, solid wood, etc.)

For shower application, can I tile directly on top of the engineered seat?
No - you absolutely must waterproof prior to tiling.

Can I fasten the brackets on a 2x2 stud?
No - a minimum 2x4 stud in required. 2x6, 2x8, studs are also compatible.

Can I fasten the brackets to metal stud?
No - wood studs only.