PerfectBee Guide to Frames and Foundation - PerfectBee
Deep Brood Frames 12×14 (Hoffman Style self-spacing) and wax foundation for BS national beehives 11, 55 or 110 – Hobee | National Beekeeping Equipment Supplies
Frames Full Depth (DEEP SIZE) - assembled with wire & foundation - pac – Bec's BeeHive Supplies