Prefinished floors are the result of the most advanced technology. While retaining the same warmth of traditional floors, these feature highly innovative structural characteristics for extremely rapid installation requiring no sanding or varnishing. Velox pre-finished floors are created by mounting a layer of fine wood onto a base of multi-layer birch. This structure effectively soaks up the natural movements of the floor as it settles for perfect stability. Salis pre-finished floors are available with ten different fine wood finishes and in three sizes. Salis offers its Prefinished with ten varieties of fine woods in 4 formats. See the available formats: Prefinished - Formats .