Product details:

Support grate only- basins or liner to create a basin sold separately! If you don't want a sagging water feature, then use this heavy duty grate which is self supporting, requiring no additional supports for most water features. This grate is commonly used to cover water basins or reservoirs that support bubbling rocks, vases, pottery, or imitation rocks. Can use this grate for pondless waterfall construction as well. Note: If used with a very heavy boulder, cinder blocks can be added allowing this grate to support almost 1,000 lbs. Dimensions: Approx. 24" x 36" Grate is about 2.5" thick. A pump access door can be added with a saw, if necessary.