Standard Mat frames are used in newer properties where there is no provision for a matwell. Designed to sit on the sub floor, they are made from square edge with all teeth on the outside to take the carpet. They are available off the shelf in three sizes. No1 24"x14", No2 27"x16" & No3 30"x18" you may also have any size made to measure by calling us on 0113 2793744 or send an email Steve.Rasal@btconnect.com