CNC Machined HDPE Plastic

Starting from $29

HDPE is a thermoplastic that belongs to the polyolefin group of materials, and is commonly used as a replacement for wood in marine applications. Sometimes referred to as "plastic lumber", HDPE offers excellent impact resistance, is lightweight, has low moisture absorption, and has high tensile strength. It is also non-toxic and non-staining. 

This material is great for applications such as marine surfaces and bulkheads, industrial containers, structural components, and washers.

 Please review our Design Guidelines for HDPE here.

Design Considerations

Maximum Part Size 46" x 46"
Sheet Thickness 0.250” , 0.375”, 0.500”


Mechanical Properties

Density (pounds per cubic inch) 0.035
Tensile Strength (PSI) 4,600
Tensile Modulus (PSI)  
Tensile Elongation at Yield (%) 900
Flexural Strength (PSI)  
Flexural Modulus (PSI) 200,000
Water Absorption @24 Hours (%)
Flamability Rating HB
Continuous Service Temp 180 deg. F
Plastic and composite materials cut on our CNC machine will have small tabs.

These tabs hold your parts in place while being cut to ensure the best accuracy precision. Click below to learn what to expect and how to best design with these tabs in mind.

Generic selectors
Exact matches only
Search in title
Search in content