Regulatory · Octagon · MUTCD 11th edition
R1-1 Stop
R1-1 Stop sign from the MUTCD 11th edition: 5 standard sizes (30" × 30", 36" × 36", 48" × 48", 24" × 24", and 18" × 18"), with letter heights, border widths, and colors.
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Standard sizes
| Size | Road type | Border | LettersSTOP |
|---|---|---|---|
| 30" × 30" | Conventional Road, Single Lane | 3/4" | 10"FHWA Series C |
| 36" × 36" | Conventional Road, Multi-LaneExpressway | 7/8" | 12"FHWA Series C |
| 48" × 48" | — | 1 1/4" | 16"FHWA Series C |
| 24" × 24" | — | 5/8" | 8"FHWA Series C |
| 18" × 18" | — | 3/8" | 6"FHWA Series C |
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Colors
- Legend
- White
- Background
- Red
- Border
- White
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Standard reference
- SHS 2004 sheet 1-1 (R1-1, 30 in); MUTCD 11th ed. Table 2B-1
- SHS 2004 sheet 1-1 (R1-1, 36 in); MUTCD 11th ed. Table 2B-1
- SHS 2004 sheet 1-1 (R1-1, 48 in); MUTCD 11th ed. Table 2B-1
- SHS 2004 sheet 1-1 (R1-1, 24 in)
- SHS 2004 sheet 1-1 (R1-1, 18 in)
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