R1-1 Stop
Requires every driver to come to a complete stop at the marked stop line, crosswalk, or intersection before proceeding when it is safe.
- Sign Name
- Stop
- MUTCD Code
- R1-1
- Sign Category
- Regulatory Signs
Specifications
- Shape
- Octagon
- Color / legend
- Red background, white legend and border
Sizes & Dimensions (inches)
These are dimensions shown on the linked layout. Select the required size using the applicable MUTCD and agency requirements; the smallest drawing size is not necessarily the permitted minimum.
- Layout 118" × 18"
- Layout 230" × 30"
- Layout 336" × 36"
- Layout 448" × 48"
When & Where It's Used
- Temporary intersection and access control
- Portable stop control at construction entrances
- Reinforcing right-of-way around a work area
Placement Context
- Where it sits
- At the point where the regulation applies, per CA MUTCD Part 2B.
- CA MUTCD reference
- CA MUTCD 2026 Chapter 2B — Regulatory Signs, Barricades, and Gates
Related Signs
Browse Regulatory Signs
Educational reference only. This is not an official Caltrans, FHWA, or local agency publication and is not legal or engineering advice. Always verify sign selection, size, placement, spacing, and application against the current CA MUTCD 2026, Caltrans sign specifications, Standard Plans, project documents, and the reviewing agency’s requirements. Local jurisdictions may impose additional requirements, and final selection, placement, and dimensions may require engineering judgment or agency approval. Reference editions: California MUTCD 2026 (effective January 18, 2026) and the Federal MUTCD 11th Edition with Revision 1.
Need to Rent or Purchase This Sign? Contact Public Ready.
Public Ready supports sign selection, project-ready sign packages, and equipment sourcing through qualified providers — with expert support built for compliance.