Durability test on windows and doors.

Frame to mount the element under test (window or door).
The base of the frame are two rows of I profiles 3,0 to 4,0 m. On this are 2 or 3 mullions adjustable in width (mounting by screws) and coupled by tube profiles for the stability. The mullions are 2,8 m high in I 100 profile and eventually higher in a smaller one. On 4 m a transom is made to suspend a sac of sand or another drop body.