Tree pool cover FRP grating beautiful appearance and easy to cut tree pool cover FRP grating is used to keep loose soil and tree roots absorb water and other nutrients, soil erosion protection of trees. Tree pool cover FRP grating mainly for street trees, green belts, parks and other public green places. Tree pool cover FRP grating made of resin material, light and easy to install. And sidewalk parallel to the ground to prevent pedestrian injuries. Tree grate size is generally 38 * 38 * 25, for pedestrians. Tree pool cover glass steel grille design: 1. Measure the length of the Pits good size and diameter 2. Grate Tree tree requires two board stitching. Such as the size of the entire Pits 1 * 1 0.5 * need to cut two boards of stitching together a 3. If the diameter of the tree 20cm, 0.5 * need a board, along the edge of the cut off in the middle position 1m 20cm * gap of 30cm, after stitching together, we can guarantee the tree grate in the middle of the box size is 30 * 30cm ^ 2