Cut your wood and create a frame for the left side from (2) 8′ pieces of 2 x 4 wood. The right end will be attached to the wall studs.
Screw this piece into the wall stud. On the right side, towards the corner, screw a piece of wood along the stud to make everything flush for the shelving.
Place on top of the supports on each side and screw it into the wall studs behind the shelves. They just sit on the supports and aren’t screwed in.
Danielle is a DIY/craft/sewing blogger on DIYDanielle.com. She loves to write about projects that she makes for her small farm, her children, and her home.