Rocha Fernandes Furniture, 2018-01-07 02:44:05. Divan Bed Bases. Divans are simply boxes on wheels so they can be easily moved or boxes on legs so there is storage underneath. Sprung edge divans have coils or springs set on a frame. These are the most expensive style. Platform divans have a hardboard top and are quite firm. Firm edge divans are made with small durable springs in a wood frame. Flexible slatted divans are crafted with bendable wood creating a slight bounciness. The slat tension can be adjusted as needed on these flexible slatted beds.