Sidewalk Water Barrier



The Sidewalk Water Barrier is manufactured in the USA from 100% high-density polyethylene (HDPE), ensuring top-quality and durability. This product is tailored to meet various project specifications, offering a selection of sizes and thicknesses. Thickness options vary from 30 mil to 100 mil, with mil being a measurement unit equivalent to one-thousandth of an inch. The available roll heights range from 18 inches to 60 inches, and while the standard roll length is 100 feet, select rolls are available in 80 feet.

Key Features:
Waterproof and UV Resistant: Designed to withstand environmental elements, making it ideal for outdoor use.
Durability: The material is non-biodegradable, resistant to insects and rodents, and does not succumb to rot or mildew.
Connectivity: Multiple rolls can be connected using double-sided HDPE seam tape, ensuring an unbroken barrier.

This product is readily available from our stock in Kansas City, MO, and typically ships within one business day, ensuring quick delivery for your projects.

Material Thickness:
30 mil = 1/32”
40 mil = 3/64”
60 mil = 1/16”
80 mil = 5/64”
100 mil = 3/32”

Please Note: The widest rolls that we offer in HDPE are 60” (5ft).

We are also unable to provide custom roll lengths.

Product Specifics

  • Material: High Density Polyethylene
  • Texture: Smooth
  • Size: Various
  • Free Shipping
  • Need a Written Quote?
    Request Online > 
  • Volume Pricing Available - orders $6,500+
  • Questions? Call (800) 520-7731

HDPE Plastic

  • Waterproof
  • Commercial Grade
  • UV Resistant
  • Non-Biodegradable
  • Will Not Rot or Mildew
  • Resistant to Rodent and Insect Damage
  • 100 Year Material Lifespan
  • Made in the USA

All of our plastics are professional-grade and are designed for use in both residential & commercial applications. Our plastics are designed for years of continuous use in the designated application.

HDPE Barrier Tape

HDPE Barrier Tape - Moisture Resistant
HDPE Barrier Tape - Moisture Resistant
HDPE Barrier Tape - Moisture Resistant
HDPE Barrier Tape - Moisture Resistant

HDPE Barrier Tape - Moisture Resistant



  • All HDPE Ships for Free (standard ground, see map)
  • Expedited shipping only available on orders over $2,000 
         Call: (800) 520-7731 for pricing and ship times

Shipping estimates shown on the map pertain to this specific product only. HDPE orders typically ship same day if the order is placed before 12:00 noon CST. Transit times displayed in the map are listed in business days, and are approximate. Transit times are subject to stock levels at regional warehouses.  The day that the order is shipped is not counted as a transit day.

Thickness comparison

The below is a thickness comparison of the material. HDPE plastic thickness is measured in "mils" which is "thousands of an inch".