This 3-tier open bookcase turns a 16.5-in by 11.5-in patch of floor into vertical storage for books, folders, and framed photos. At 31.5 in tall it stops near desk height, so it slides under a window, beside a sofa, or along a hallway without blocking sightlines. Two of the three shelves reposition through 7 preset heights in 2.3-in steps, clearing space for tall binders on one level and paperbacks on the next. The top surface holds up to 55 lbs and the shelves carry 66 lbs combined. Two anti-toppling kits anchor the frame to the wall, and non-slip pads keep the base off bare hardwood.