Official MUTCD Stop Sign R1-1

• MUTCD-compliant R1-1 regulatory stop sign
• .080" (80 mil) rustproof aluminum
• 3M retroreflective sheeting in High Intensity Prismatic (HIP) or Diamond Grade DG3
• Pre-punched mounting holes for standard post installation, rounded corners
• Made in the USA

The Official MUTCD Stop Sign R1-1 is the standard red octagonal regulatory sign used where traffic is required to come to a full stop. Designed for public roads, private roads, parking lots, HOAs, campuses, facilities, and contractor projects, this reflective aluminum stop sign provides the familiar white STOP legend on a red retroreflective background.

Built for professional traffic control applications, this sign is made from durable heavy-duty 80 mil aluminum and is available in multiple sizes with your choice of reflective sheeting. It is a dependable replacement for faded, damaged, missing, or non-compliant stop signs.

Choose the Right Size

• 30" x 30": Common choice for local roads, private roads, parking lots, and lower-speed applications.
• 36" x 36": Larger face for improved visibility on wider approaches, multilane roads, or projects requiring a larger sign.
• 48" x 48": Oversized stop sign option for high-visibility applications, larger roadways, or locations where extra conspicuity is needed. Ships by truck freight and requires a two-post mount.

Reflective Sheeting Options

• High Intensity Prismatic (HIP): A widely used reflective option for regulatory traffic signs and a strong choice for most standard roadway and facility installations.
• Diamond Grade (DG3): A higher-performance reflective option for maximum brightness, long-distance visibility, and demanding traffic control applications.

Installation Notes

• Sign posts, brackets, bolts, and mounting hardware are sold separately.
• 30" and 36" sizes typically mount to a single post.
• 48" x 48" signs require a two-post installation and ship by truck freight.
• Confirm final sign size, placement, mounting height, and post requirements with your project plans, local authority, or applicable MUTCD guidance.

Shipping

Most in-stock items ship within 1 to 5 business days. Please check the ship time shown near the price for the item you selected.

Shipping rates are calculated at checkout before you place your order. You can review the total shipping cost before paying.

Tracking information is available as soon as your order ships. Most orders arrive within 2 to 7 business days after shipment, depending on your location and the carrier.

Items that are too large to fit in a regular shipping box may ship separately or take longer to arrive.

Returns

Customers have 30 days from delivery to request a return on qualifying standard products. For full details, please review our Shipping & Returns policy.

If an item arrives damaged, defective, or incorrect, please contact us and we’ll make it right.