I purchased Rebrilliant closet systems for all my bedroom closets and all different styles and dimensions.  This review photo is for the two shelves with one rail.  Please note the blue closet as an additional shelving unit attached.  I like the solid shelf so I can sit anything on them.  This is extremely durable and really easy to change and adjust.  I love all the sizing options.  Super easy to level form an installation standpoint.  You will need an extension on your drill.  My closest are all different nonstandard dimensions.  One of the shelve units I ordered 2 inches smaller than the width of the closet and I cannot even tell.  I did center the shelves so there is a small 1 gap on either side.  I love the companys videos for installation that you can find on their website.  I have a lack of storagecloset space in this house so product versatility is extremely important as I wanted all the room closet systems to match.