These tiered shelves expand to fit any space! Their design gives you a full view of all your cans, spices and whatever else is hiding in your cupboards. Ideal for organizing kitchen cabinets, pantries and bathroom closets. Heavy-duty polystyrene won’t sag or dent. Small 2-tier shelf is 2"H x 3"D, expands 12"-22". Medium 3-tier is 4"H x 7¾"D, expands 14"-26". Large 3-tier is 6"H x 11½"D, expands from 14"-27".