This page uses Javascript. Your browser either doesn't support Javascript or you have it turned off. To see this page as it is meant to appear please use a Javascript enabled browser. Need help?

30″ x 30″ DO NOT ENTER Sign Hi-Intensity Prismatic Grade Reflectivity

Item #: 30x30 R5-1 HIP (30"x30" HIP) or R5-1 is MUTCD sign designation for all DO NOT ENTER signs

Price: 30"x30" High Intensity Prismatic Reflective - $73.35

Product Description

30″x30″ DO NOT ENTER Sign with 3m High Intensity Prismatic (HIP) Reflective Sheeting

  • MUTCD Sign Designation – WSDOT R5-1
  • The 30″x30″ HIP DO NOT ENTER sign is MUTCD compliant
    • Engineer Grade Reflective Sheeting – Basic reflectivity grade. Provides adequate visibility and reflection when light hits the surface. Ideal for parking lots and driveways.
    • High Intensity Prismatic Reflective Sheeting – Offers superior reflectivity. Enhanced visibility when approached at an angle. MUTCD compliant. Most commonly used on roadways and high traffic areas.
    • Diamond Grade Reflective Sheeting – The brightest and most durable sheeting. When approached at around 90 degrees, the surface returns about 60% of light due to retro-reflectivity at the highest level, resulting in optimum visibility for the busiest and most dangerous roadways. This grade exceeds all MUTCD expectations.

Example of sheeting grades when hit with light

    • 30″x30″ – Conventional roadway. Most common size. MUTCD compliant when sheeted with HIP or better.


  • 0.080 mil thick aluminum
  • White Reflective Sheeting
  • “Stop sign” red
  • Standard Square Shape with radiused corners
  • 3/8″ pre-punched holes centered, from top & bottom for easy mounting

Looking for something else? Maybe something custom that is specific to only your needs? Check out Alpine Product’s very own Custom Sign Shop and see what it has to offer!

Product Images

Tell a Friend

Email your friend a link to this product.
  • This field is for validation purposes and should be left unchanged.