I have installed that shelving in a few closets in my house. Most of the shelving at HD and Lowes is made by ClosetMaid. You can save some money by buying a longer section of shelf and either cutting it youself or have the store cut it (check and recheck their measurements). You may also need to notch the shelving if there are 2x supports in the corners of the cabinets. ClosetMaid used to sell a u-shaped bracket for the rear hangers that allowed you to easily remove the shelf if needed...not sure if they still sell those now.