When backfilled this square cover on a 20,000 gallon tank will have a carport built on it.
Our concrete tank covers are solid. They can easily support a structure or hot tub. Although the tanks are always round, we can pour the covers in other shapes to fit your needs.
Dome shaped covers can be specified for special circumstances.
Octagon concrete cover showing reinforcement before concrete is laid down.
Room under construction on octagon shaped concrete cover.