Purchase 4' by 8' sheet metal from KingMetals.com, Greschlers.com and Fastenal.com. King Architectural Metals offers 16 gage 4' by 8' hot rolled sheet metal. The site allows you to search by category, material, family, concept or e-catalog.
Greschlers Hardware offers automotive, building, electrical, houseware and paint supplies. Greschlers Hardware also offers hand tools, safety products, work wear, seasonal products and power tools. Ladders, lubricants, fencing supplies, cleaning supplies and cordage are also available.
Fastenal offers sheet metal, cutting tools, fasteners, materials storage and packaging and safety products. Fastenal also has a section for electrical, hardware, abrasives, welding and HVAC supplies.