This is as true for insulation board as it is for the ubiquitous ... If you have bigger, more complicated foam-cutting jobs in mind, why not build a CNC version out of e-waste?

Foam board insulation is easy to use and a great DIY way to add some insulation. It comes in standard-size 4×8 sheets and ...

A board foot is 144 cubic inches. With this unit as the standard to go by, open cell spray foam insulation costs between $0.45 and $0.65 per board foot. Closed-cell spray foam is more expensive ...