Disclosed are seating made from pressure vessels, such as cylindrical propane tanks with hemispherical ends, as well as methods for making this kind of seating. The methods involve cutting sections of the reclaimed tanks and placing those sections on a jig that establishes defined, ergonomic positions for seat and back portions of the furniture, and welding appropriate ends or supports to the sections to form the piece of furniture. The pieces of furniture are made without bending, rolling, or otherwise changing the shape of the cut sections from the pressure vessel.