Five inches deep is the whole idea - this cart slides into the gap between a fridge and a wall, then pulls out when the spice jars are wanted. Four tiers with a rail around each shelf keep bottles from tipping as it rolls. The bottom shelf takes 22 lbs and the upper two 11 lbs between them. Four casters move it and two lock, with a handle at the top for hauling it out of a tight slot. Engineered wood at 12 lbs, measuring 19 x 5 x 32 in. Black is one of four finishes with white, gray and off white.