Rigid, 2 inch thick insulation panels with built-in studs, stackable, modular, mold resistant, with ventilation channels to reduce trapped moisture. My project was cancelled, so I'm selling these at a steep discount to clear out space.
I have 10 boxes for $400 total (over $600 savings for you), or $50 for individual boxes.
Original price is $128 per box + shipping and tax (see website linked below).
Boxes are 11" x 25" x 49" and 20 lbs each, and each box has 5 panels.
Each panel is 4 foot x 2 foot, which covers 8 square feet.
Each box will cover 40 square feet.
10 unopened boxes would cover 400 square feet.