Stop signs are among the most critical regulatory signs on any roadway or parking lot, required at intersections where drivers must come to a complete stop before proceeding. This MUTCD-compliant stop sign (R1-1) is manufactured on heavy-gauge aluminum with a High Intensity Prismatic reflective finish for reliable visibility in both daytime and nighttime conditions.
- Sizes: 24", 30", 36"
- Material: .080" aluminum, rust-resistant
- Reflectivity: High Intensity Prismatic (ASTM Type III), visible from extended distances at night
- Compliance: Meets DOT and MUTCD standards (R1-1)
- Mounting: Pre-drilled holes for direct installation on U-channel or square posts
- Applications: Public roads, private roads, parking lots, school zones, construction zones, and gated communities
- Sign text: STOP
Frequently Asked Questions
What size stop sign do I need?
The MUTCD specifies a 30" stop sign as the standard size for most roadway applications. A 24" sign is acceptable for minor streets, parking lots, and private roads. The 36" oversized option is typically used on multi-lane roads or high-speed intersections where additional visibility is needed.
What does High Intensity Prismatic reflectivity mean?
High Intensity Prismatic (HIP) sheeting is an ASTM Type III reflective material that returns significantly more light to drivers at night compared to standard Engineer Grade sheeting. It is the reflectivity grade most commonly specified by municipalities for regulatory signs like stop signs, yield signs, and speed limit signs.
Can I use this stop sign on private property?
Yes. Private property owners, HOAs, property managers, and businesses commonly install stop signs in parking lots, apartment complexes, and private roads to regulate traffic flow. While private-property signs are not enforced by traffic law in most jurisdictions, using MUTCD-compliant signage ensures drivers recognize and respond to them.
How do I mount a stop sign?
Stop signs are typically mounted on a U-channel post or square post at a height of 7 feet (measured from the bottom of the sign to the road surface) in urban areas, or 5 feet in rural areas, per MUTCD guidelines. Each sign comes with pre-drilled holes for standard bolt-on installation.
How long does a stop sign last?
Aluminum stop signs with High Intensity Prismatic sheeting have an expected service life of 10+ years under normal outdoor conditions. The aluminum substrate will not rust, and the reflective sheeting carries an implied warranty for reflectivity of at least 10 years.
