Page 75 of the Rice Signs 2017 Traffic Safety Catalog covers Sheeted Street Name Sign Blanks — aluminum blanks pre-cut and pre-sheeted in the standard street-sign colors, ready for the buyer to apply street name letters in-house. Flat Aluminum Blanks are single-layer 0.080 aluminum (lighter, less expensive) suitable for shorter street name signs. Extruded Aluminum Blanks have integral structural ribs on the back side, making them more rigid for longer signs and high-wind installations. Both construction types come in Single-Color (Green-only) for the cheapest option, or Double-Color where the legend area uses one color and the border uses a contrasting color — Green & Black, Blue & Black, and Brown & Black are the standard combinations. Sizes are 6 inch, 9 inch, and 12 inch tall in lengths from 12 inch up to 48 inch.