Waist-high at 29.5 in, this 3-tier bookcase stores reference books and daily supplies while its top doubles as a landing surface. The middle shelves lock into 18 different positions, so an 18.5-in by 11-in bay can be set low for photo boxes one week and raised for tall binders the next. A lipped edge runs around the cabinet top to stop remotes, keys, and mugs from sliding off, and that surface takes 66 lbs. The adjustable shelf carries 33 lbs, the fixed bottom shelf 55 lbs, and an anti-toppling device braces the frame against wobble.