Stiffning box

A stiffening box is essentially a box-like structure added to a component or assembly to make it more rigid and stronger. Its main job is to prevent bending, twisting, or other forms of deformation when a load is applied. These boxes can be made by joining plates, forming sheet metal, or even as part of a casting. You'll often find them in machine frames, structural supports, and enclosures where extra stiffness is needed without adding excessive weight.