W1-3R REVERSE TURN (RIGHT) Standard Sizes
This page shows the common MUTCD standard sizes for the W1-3R REVERSE TURN (RIGHT) sign. Use this information to select the appropriate size based on roadway speed, traffic conditions, and visibility needs. All dimensions are in inches.
Common Sizes
Standard nominal sizes per MUTCD.
Roadway Applications
Size selection based on speed, ADT, and roadway environment.
Visibility / Reflectivity
High-intensity reflective sheeting required at night.
Mounting Guidance
Proper mounting height and placement for optimal visibility.
W1-3R REVERSE TURN (RIGHT) Sign Standard Size Chart
- 30 in30" × 30"
- Typical Use
- Low-speed and local roadways
- Notes
- Minimum standard for conventional roads in some cases.
- 36 in36" × 36"
- Typical Use
- Conventional roads
- Notes
- Common minimum for warning signs.
- 48 in48" × 48"
- Typical Use
- Conventional roads (California TTC minimum)
- Notes
- CA MUTCD minimum for many work-zone warning signs.
- 60 in60" × 60"
- Typical Use
- Expressways and freeways
- Notes
- Larger size for high-speed facilities.
W1-3R REVERSE TURN (RIGHT) Sign Dimensions
H (Height)For a diamond, Width (W) and Height (H) follow the nominal size at each dimension.
When Each Size Is Typically Used
- 30 in DiamondLow-speed and local roadways
- 36 in DiamondConventional roads
- 48 in DiamondConventional roads (California TTC minimum)
- 60 in DiamondExpressways and freeways
Material / Visibility Notes
- ✓High-Intensity ReflectivitySigns should use high-intensity or diamond-grade retroreflective sheeting for nighttime visibility.
- ✓Sign LegibilityLarger signs improve legibility and driver response time.
- ✓Nighttime VisibilityProper size and reflectivity enhance visibility in low-light conditions.
- ✓MaintenanceKeep signs clean and unobstructed to maintain retroreflective performance.
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. Written against California MUTCD 2026 (effective January 18, 2026) and the Federal MUTCD 11th Edition. Official sources last verified June 2026.
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