A Mainstay that we enjoy producing are aluminum beds!
Construction is typically of 1x2x1/8 or 1x3x1/8 aluminum with a 2x2x1/4″ angle mount. Mercedes Sprinter and Dodge Pro-master bed units have been tested up to 500lbs of weight with zero issues.
Prices are 750.00 for Mercedes Sprinter, or Dodge Promaster for base flat bed with rear door extension. End user will skin or slat with material of choice.