As a rough rule you need 1 tube of sealant for every 10m2. A jumbo applicator gun is needed for the 900ml sealant. You will require one roll of high tack tape for roughly 15m2 worth of area. Gripper rod risers are required for when using the mat as your carpet underlay. When using the mat hard side up a deck perimeter strip is required around the perimeter of the room. We recommend 1 roll of scrim tape per 30m2 and one tub of tile adhesive per 20m2 for sealing the joins between boards.