i'm thinking of building my own custom amp case. does anyone have a clue about the material used to build one?
mine is, the cardboard box the amp came in, cut smaller so it really hugs it. Cut the excess cardboard away and cut through the top of the box to fit the handle through. The tap all around the cardboard with that think black tape thats really rugged, you can pick it up at any DIY

Yeh thats the cheapo option!