: Ask for a discount on damaged sheets . If a corner is crushed or a edge is dinged, you can often get 30–50% off, which is perfect for hobbyists who plan to cut it up anyway.
: Widely considered the absolute cheapest source for standard sheets. where to buy cheap foam board
: Reliable for single sheets at a low price (often around $4 per sheet) if a dollar store isn't nearby. : Ask for a discount on damaged sheets
: Check Craigslist or Facebook Marketplace for "rigid insulation" leftovers. Contractors often give away offcuts from roof or foundation jobs for free or for very little money. 3. Online Bulk Buying Where to find 1/4 inch thick foam board for miniatures? you can often get 30–50% off