Linear DrainsThis shower is one of my favorites and features a linear drain from Quick Drain USA. This drain is one of my top picks and recommendations on most jobs. The narrow profile and the fact that it's also a primary shower drain make it one of the best options out there.Tip: When working with standard 3/8-inch-thick tile, I plan on a 1 1/4-inch finished wall build-out (off the stud framing) to factor in a combination of the 1/2-inch backer board, waterproofing, tile thinset and tile thickness. Plan your build-out before installing the drain so you can put the drain tight to the wall, as shown here. If you have not picked your tile yet, hold off on installing the drain until you have.