Aluminum Sign Blanks

We stock a variety of 5052 H38 grade aluminum alloy sign blanks and sheet metal in various shapes, sizes, widths and thicknesses. The US aluminum market has tightened recently for aluminum coils and metal sheets. Our aluminum blanks meet all U.S. Bureau of Public Roads standards with holes, mounting and radius corners made to order and in accordance with the Federal Highway Administration (FHWA) Manual on Uniform Traffic Control Devices (MUTCD). Our aluminum blanks and signs are manufactured and chemically treated at our Little Rock, Arkansas facility to meet ASTM B449 specifications for sheeting and paining applications. We have an extensive supply ready to meet your needs. Call 501-490-4242 or email us at

Aluminum Thickness

Available 5052 H38 grade aluminum sign blank and metal sheet thicknesses include: .125 aluminum, .100 aluminum, .080 aluminum, .063 aluminum and .040 aluminum. Interstate's quality control confirms the laminating process through tensile strength test sampling according to your requirements or industry standards. Interstate wants to provide you with a consistent quality product you can rely on.

Aluminum Sheet Widths

We stock aluminum sheets in 30", 36" and 48" widths. We can cut the aluminum sheet metal to your desired length and custom widths.

Aluminum Sign Blank Shapes

Aluminum blanks shapes and sizes can be manufactured to your needs and radius specifications. We also stock many of the commonly used DOT aluminum sign blank standards.

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Interstate SignWays Signs
We have been purchasing signs from Interstate SignWays for over 20 years. The knowledge of their staff, the quality of their work and their service is exceptional. We look forward to working with them for many more years. Dan Williams, Vice-President Safety Contractors, Inc.