Quadro panels are manufactured from real wood. Thanks to production process there are no possibility to find two identical ones. Sold per box.1 box - 2 panels - coverage area 0.29 m2. Panel dimensions L- 380mm x H- 380mm. Fast and easy installation - you can use any general-purpose " grab type" adhesive to fix them to the wall. Not sure how many boxes you require to cover the area? Measure the height and length, then multiply these 2 figures, result divide by 0.29 - now you know how many boxes you will need.