Any ideas on where I can pick up some rectangular steel tubing? I think I'm looking for something fairly heavy duty, about 2" wide by 1" deep by 3 feet long. Powdercoated would be a bonus.

A standard 5-gallon round air tank wouldn't fit anywhere around our chassis, so we built our own air tanks from 24x8x4-inch by 0.180-inch wall rectangular tube steel. The Final Word ...

We'll be constructing our chassis out of 2x4x0.120-inch wall rectangular mild steel tubing. The new chassis is shorter in height than the stock GM piece, which means we won't need a big body-drop ...

The shop also had more traditional HOT ROD fodder, including a fastback Mustang on a rotisserie, a '67 Camaro drag car, an Impala with a full rectangular steel tubing chassis, and a Olds custom.

Torque tubing is the main structural support for tracking systems. Round and rectangular steel tubing is used throughout the solar industry as support piers for ground-mounted applications.

Starting with 2x4-inch rectangular steel tubing he laid out the chassis incorporating all of the driveline and suspension mounting points and required crossmembers.