This rug comes with a pile height of 16 mm, weight 3700 gr/sq m. It can be used with under-floor heating, unless it is a wall to wall carpet. Metropolis Uni is composed of a mix of wool (20%) and polyester (80%). It has officially been tested and is suitable for residential and contract use. For usage in areas with heavy traffic Metropolis Uni can be supplied in a version with a higher density. Please enquire if you are interested in this option. Maximum size without seams: 430 x 470 cm