I've made some pretty professional looking floor to ceiling shelves from 3/4" white melamine boards from Home Depot. They have the shelves precut and ready for mounting, I think they come in 16" or 18" wide. All you have to do is have the sides of the shelves cut from the melamine sheets that lay on the lumber section of the Home DEpot. then you place each free shelve between the 2 sides and fix them with wood scrues from the side panels. It's like constructing a ladder, the steps being the record shelves.
Ted
Ted