Custom Aluminum Sign Blanks: Sizing, Drilling & Pre-Treatment
Municipal and facility buyers need custom aluminum sign blanks built to ASTM B209, MUTCD 11th Edition dimensions, and Buy America standards taking effect October 2026. This guide breaks down sizing tolerances, pre-drilled hole patterns, radius corner specifications, and powder-coated finish chemistry so procurement teams can write airtight RFPs and validate every pallet at receiving.
