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Our aluminum sign 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 sign blanks are manufactured and chemically treated at our Little Rock, Arkansas facility to meet ASTM B449 specifications for sheeting and painting applications. Our stock aluminum is sourced with American materials. We have an extensive supply ready to meet your needs. 


Available 5052 H38 grade aluminum sign blank and metal sheet thicknesses include: 

  • 0.125 aluminum

  • 0.100 aluminum

  • 0.080 aluminum

  • 0.063 aluminum

  • 0.040 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.


We stock aluminum sheets in 30", 36" and 48" widths. We can cut the aluminum sheet metal to your desired length and custom widths. From large-scale increment panel signs(link) to small scale office directional signs, No job is too big or too small. 


Blank metal sign shapes and sizes can be manufactured to your needs and radius specifications. We also stock many of the commonly used Department of Transportation (DOT) aluminum sign blank standards. If you need an 

How to Order?

Although we stock many commonly used aluminum sign blanks, on hand shapes and sizes stock may vary. To insure your order is shipped in a timely fashion these products are not available through our online store. Call us or email us for an estimate and we will make sure your aluminum sign blank project is fulfilled. 

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