Yes—our planter box factory can manufacture rooftop planter boxes with an 8-inch internal depth for succulents. For a rooftop garden, it is important to confirm whether 8 inches refers to internal planting depth or overall box height: an 8-inch internal depth usually results in about 8.5–9 inches overall height once the base, lip, and drainage details are included. For succulents, 8 inches is generous but workable; many succulent displays perform well at 6–8 inches, provided the soil drains quickly and the box has reliable drainage. We can fabricate shallow boxes in powder-coated aluminum, HDPE, FRP, marine plywood with a waterproof liner, or weathering steel. Aluminum and HDPE are often best for roof decks because they reduce weight and resist moisture. We can include pre-drilled drainage holes, a sloped bottom, filter fabric, removable drainage trays, hidden mounting feet, and liner protection. Wind uplift and roof loading matter, so we recommend lightweight growing media and pedestals that protect the waterproof membrane. Custom sizes, colors, corner details, and MOQ options are available. Send your rooftop layout, required internal depth, material preference, and drainage plan, and we will return a shop drawing and quotation for 8-inch-deep succulent planter boxes.