3 to 6cm adjustable support. This adjustable support is a quick and easy installation product for elevated floors over 3cm and under 6cm. Stackable items such as TL1 and TL2 can be used on top for small height gains. TL7 also offers edge solutions, creating a stable 3mm gap, when meeting a wall and an edge cover solution, including a continuous vertical gap, when using a tile upstand.