Shelf heights vary deliberately on this wall-mounted rack so picture books, chapter books and small toys each get a bay that fits, rather than one uniform gap that suits none of them. A basswood crossbar fronts each tier to hold books upright and face-out at a child's eye level. It is rated for ages 3 and up, holds 33 lbs per layer and measures 22 x 5 x 42.5 in - only 5 in deep, so it stays clear of a play space. MDF and basswood at 12.5 lbs; fixings and a user guide are included.