An advantage of having punched ventilated doors is that they are more robust than louvered ones. Usually punched steel doors are used for purposes such as plant room or substation doors. Often they will be not used for general purpose but storage rooms.
We also supply within this range both Bi-fold and Tri-fold doors to allow easy access for large machinery. This makes the doors perfect for storage purposes of hardware.
Furthermore an extra low profile can be included so that they are wheelchair friendly as well.