Small Alcove Shower Ideas . The tub and shower panel were removed to create a space to roll into and transfer onto a seated corner chair supported by grab bars. Photo by regan baker design inc. 25 Beautiful Shower Niche Ideas for Your Master Bathroom — DESIGNED from carlaaston.com Continue to 31 of 33 below. The tub and shower panel were removed to create a space to roll into and transfer onto a seated corner chair supported by grab bars. Add a pop of color by painting an alcove.