What is the minimum thickness required for a 6" x 4" x 3 1/2" cast aluminum box?

The minimum thickness required for a cast aluminum box, particularly one with the specified dimensions of 6" x 4" x 3 1/2", is established by industry standards that ensure durability and safety. For aluminum boxes used in electrical installations, a thickness of 3/32 inch is typically mandated to provide adequate strength and resistance to environmental conditions. This thickness allows the box to withstand impacts, support the weight of internal components, and prevent deformation over time.

Choosing a thickness less than 3/32 inch, such as 1/16 inch, would not meet the necessary structural integrity standards. Similarly, while 1/8 inch and 1/4 inch are thicker and may provide additional strength, they exceed the typical requirements for this specific type of box. Consequently, the specification of 3/32 inch represents a balance between sufficient strength and material efficiency for the intended application.