Prefinished with a clear coat. Tavern grade brings out the natural character of the wood. All color variations accepted, open and sound knots, wormholes and surface holes, streaks and checks, machine marks, short planks, and sold without warranty. Source: Quebec, Canada. Each box covers 20 sq ft. We recommend a 5% waste allowance, and an acclimation perdiod of no less than three days-the longer the better.