Larger than standard NEMA panel used in same sized enclosure. 12gauge steel construction. Larger sizes have 2 or 4 formed flanges for added strength. Slotted corner design for easier mounting. Finished in white or unpainted galvanized. Specifications Product: Panels Type: Internal Length: 2.35 ft Width: 1.85 ft Brand: Hammond Manufacturing Material: Steel Packaging: Bulk Product Type: Electrical Enclosures