Adjustable 3/4" particle-board shelving from Incredible Closets, custom-built in 2009. 12" x 19" shelves (21 pieces) 12" x 72" verticals (4 pieces) 8" x 21" shelves (28 pieces) 8" x 72" verticals (5 pieces) 4" x 19" pieces (3) 4" x 21" pieces (4)