32 to 40 in
Dividers Placed for Heavy Hardcovers
Packed hardcovers weigh roughly 20 to 25 pounds per running foot, so shelf length gets decided before anything else. We keep open spans short enough for the board thickness, which usually puts a vertical divider every 32 to 40 inches. A solid wood edge on the front of each shelf adds the stiffness that stops bowing, and where a longer opening is wanted, we thicken the board or tuck a steel flat bar into a kerf along the front. Shelves stay adjustable, so the layout can change with your collection.






