When using a bottom hold-down pad under a steel tank, what is the maximum thickness of bedding material specified by steel manufacturers?

The maximum thickness of bedding material specified by steel manufacturers for use under a bottom hold-down pad of a steel tank is 6 inches. This limit is set to ensure proper stability and support of the tank while preventing undue stress or deformation of the tank structure. Excessive bedding thickness might not provide the necessary uniform support and can lead to issues such as settlement or shifting of the tank over time. Therefore, adhering to this 6-inch maximum ensures that the bedding material effectively supports the tank and complies with safety and regulatory standards typically followed in the installation of underground storage tanks. Providing an adequate, but not excessive, layer of bedding material optimizes the integrity and longevity of the tank installation.