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How To Measure and Cut-To-Size Policy | Close it

Cut-To-Size Items are Non-Returnable!

As per our Shipping and Returns Policy, custom cuts and fabricated parts are non-returnable. If you need an over- or undersized item, note it under \"Comments\" during Checkout. Cut-to-size orders have an acceptable cut tolerance of 1/8" (0.125"), so clarify if the adjustment is to be made on the (+) or (-) side of the saw blade. Please review our full return and shipping policy here.

Measure Twice, Cut Once

Since custom cuts and fabricated parts are non-refundable, be very careful while measuring your dimensions. As each cut is nominal, even the slightest miscalculation could be costly.

How to Use a Measuring Tape

Extend your tape measure several inches to find the 1 and 2 inch markers. In between the inch markers you’ll find 16 equally spaced tick marks.

Measure by counting the increments beyond the nearest inch. As the increments decrease, so does the length of the mark. For example, 1/2\" has a bigger mark than 1/4\" which has a bigger mark than 1/8\". The smallest mark follows at 1/16\". Please be aware that some measuring tapes may have even smaller increments.

Features of a Measuring Tape: Sliding End Hook

The sliding end hook is designed for two different types of measurements. An outside measurement (where the hook of the tape hangs over an edge), requires the hook to slide out a bit to account for the thickness of the material. When making an inside measurement (where the hook will push up against a surface), the clip slides in, again, accounting for its thickness. The measuring tape self-adjusts to guarantee an accurate measurement (as far as the tape is concerned).

HDPE Sheet | Natural High Density Polyethylene

HDPE Sheet | Natural High Density Polyethylene

Durable High Density Polyethylene Sheet


Select your custom cut sizes:


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Interstate Plastics is proud to carry High Density Polyethylene (HDPE), a machinable thermoplastic known for its high strength-to-density ratio, long term durability and light weight. HDPE's toughness and flexibility make it one of the most commonly used plastics in the United States today.

HDPE is also known by brand names including King Starboard®, King Starlite®, ColorCore®, Proteus®, PE2Print®, Corrtec®, Playboard® and Designboard®.

HDPE features high impact strength, abrasion, moisture, stain, and odor resistances, and is FDA approved to be used in the food processing industry. HDPE sheets will not splinter, rot or absorb harmful bacteria, and is extremely resistant to cleaning agents.

HDPE's durability, versatility and high tolerances to many substances and environments make it an outstanding material for a wide variety of applications. HDPE sheets and rods have a low coefficient of friction and can be easily cut, machined, welded, and thermoformed for easy fabrication.

Storage Ability
With a low coefficient of friction, long term durability, abrasion resistance as well as high impact strength, it's no wonder HDPE is the product of choice for so many applications within marine biology, packaging, industrial, plumbing, food and beverage, consumer industries and more.

Note: HDPE is an industrial grade plastic with no protective masking. Scratches and scuffs on sheets are considered acceptable and are not a valid reason for returning this material.

Interstate Plastics HDPE Product Information Sheet [PDF]

  • Acid, odor, moisture, mildew and stain resistances
  • Self-lubricating
  • Lightweight
  • Extremely easy to machine, fabricate
  • Excellent chemical resistance to acids, alcohols and bases
  • Excellent long term durability
  • Great weather resistance
  • Abrasion resistance
  • Thermoforming
  • High impact strength
  • Good flexibility and toughness
  • Cost effective
  • Low maintenance
  • FDA approved

Product Reviews


Material: HDPE
Specific Gravity (g/cc): 0.96
Water Absorption: 0.10% @ 24H
Friction Coefficient: 0.12
Tensile Strength: 4000 psi @ 73°F
Tensile Modulus: 200 ksi
Flexural Modulus: 87 ksi
Flexural Strength: 3500 psi
Elongation: 600% @ Break
Hardness: Shore D69
Continuous Operating Temp: 180°F
Heat Deflection Temp: 116°F @ 264 psi
Vicat Softening Temp: 261°F
UL94 Flammability: HB
Compliance: 3A-Dairy, FDA, Canada AG, USDA
Dielectric Constant: 2.3

Frequently Asked Questions

What sets Interstate Advanced Materials apart?
Interstate Advanced Materials empowers customers to choose their pricing by maintaining a membership, available through tier levels that unlock access to exclusive pricing as well as shipping and volume discounts

What is Interstate Advanced Materials's Shipping Policy?
Shipping will vary based on whether your order contains custom or cut-to-size products. Details about shipping can be found here.

Is your site secure?
Yes, we implement a variety of security measures to maintain the safety of your personal information. Your information is protected both online and offline.

Disclaimer: Interstate Advanced Materials makes no representations about any of its products that are modified in any way after they leave its possession, nor do its representations apply when any of its products are improperly used or stored. Each customer of Interstate Plastics bears full responsibility for making its own determination as to the suitability of each material, product, recommendation or advice provided by Interstate Plastics. Each customer of Interstate Plastics must identify and perform all tests and analyses necessary to assure that its finished parts incorporating materials from Interstate Plastics will be safe and suitable for use under end-use conditions.