[Boatanchors] cabinet material??

[John King]

Today, I was in a soundproof booth taking a hearing test and lo and behold, the walls were covered with painted perforated steel paneling. Being an avid "ham", I noticed the material on the wall had perforations that appeared to the same or close to those on my Drake L4B amplifier. I noticed that the panels were approximately 30 inches wide and about 8 ft. long.

I felt like I was inside a very large RF amplifier. Behind the perforated metal was thick sound proofing material. The perforated metal looked like cabinet material and appeared to be the same thickness as an RF cabinet might be.

It would be great to have a source of beautiful cabinet material such as that. I am sure it is available, but I have no idea of the manufacturer or the source. The Sams Club hearing Aid dept. had no idea of the source of the material.

Has anyone run across perforated steel material such as the described steel? 

Thanks for reading. 73, John, K5PGW