Search Icon Menu Icon
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).


Dark Ash HDPE Lumber | Plastic Wood Sheet

Dark Ash HDPE Lumber | Plastic Wood Sheet

Charcoal-Toned Alternative To Stained And Painted Modern Hardwoods

SKU: HDPV3 ST

Price for .5 x 54 x 96" Sheet Qty: 1

$584.22


ESTIMATED SHIPPING TO 93001: $179
* Prices are subject to change every 6 days
Login or Create an Account to Get As low as $54/month with

Description

The UV-Stable, Waterproof Alternative to Dark-Stained Wood

TimberLine™ Dark Ash features a bold, charcoal-grey aesthetic that is ideal for contemporary outdoor kitchens and architectural accents. This high-contrast finish captures the look of dark-stained ash without the maintenance, chipping, or fading seen in painted or stained lumber.

Unlike real weathered wood, TimberLine™ will not rot, delaminate, or chip. Integrated UV-stabilizers ensure superior colorfastness, "chalking" or "silvering" effect often seen in dark exterior materials. Whether you're fabricating kitchen islands or patio storage, this material provides a long-lasting, "worry-free" finish.

Why Choose TimberLine™ Woodgrain HDPE?

This material is ideal for high-exposure outdoor living spaces. Choose TimberLine™ for:

  • Authentic Woodgrain Texture: A deep, embossed finish that provides a striking, modern charcoal look and tactile feel, making it ideal for high-impact architectural features.
  • Superior Weatherability: Impervious to moisture, salt spray, and extreme temperatures. It will never require sanding, staining, or oiling.
  • Standard Tool Compatibility: Can be machined, routed, and drilled using standard carbide-tipped woodworking tools.
  • Enhanced Versatility: Unlike natural lumber, TimberLine™ can be heat-welded or thermoformed (heated and shaped) for custom curved projects and unique architectural elements.
  • Sustainable Design: Manufactured with sustainability in mind, this long-lasting material is 100% recyclable and reduces the demand for exotic hardwoods.

Common Applications

TimberLine™ is an excellent choice for environments where wood aesthetics are desired but durability is mandatory:

  • Outdoor Living: Modern charcoal-toned outdoor kitchen islands, custom BBQ cabinetry, and sleek patio storage.
  • Landscape Architecture: Decorative fencing, sign backings, playground systems, and park furniture.
  • Hospitality: Modern poolside bars, upscale resort cabinetry, and high-traffic restaurant fixtures.
  • Marine Construction: Professional-grade yacht interiors and dark-grain trim for modern boat designs.

Looking for a similar aesthetic? Explore other bold, dark tones like the deep charcoal Ironwood or espresso-hued Kona. Or if you need an entirely different aesthetic, browse our selection of other Woodgrain HDPE colors.

Fabrication & Thermal Expansion

While HDPE is easy to machine, it is important to account for thermal expansion and contraction (roughly 1/32" per foot for every 40°F change). Like all HDPE products, TimberLine™ cannot be glued with standard adhesives. For structural assembly, we recommend mechanical fasteners or plastic welding.

View HDPE Fabrication Guide ›

Trusted Industry Expertise

When you order from Interstate Advanced Materials, you're accessing an expansive nationwide network of material expertise. We source our TimberLine™ HDPE sheets from trusted manufacturers with strict quality standards, ensuring that your modern cabinetry or outdoor project is ready for precision machining the moment it arrives.

Watch: What is TimberLine™ HDPE?

Related Articles

Product Reviews

Specifications

Material: HDPE
Density: .96 g/cc
Tensile Strength: 4000 psi
Tensile Modulus: 225 ksi
Flexural Modulus: 225 ksi
Hardness: Shore D69
Heat Deflection Temp: 205°F @ 66 psi
Vicat Softening Temp: 265°F
UL94 Flammability: HB
Linear Expansion Coefficient: 6 x 10-5 in./in./°F
Compliance: CPSIA, REACH, RoHS

Frequently Asked Questions



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 Interstate Advanced Materials site secure?
Absolutely. Your information is passed through our https site when you make a purchase. Your Credit Card is never stored on file.



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 Advanced Materials bears full responsibility for making its own determination as to the suitability of each material, product, recommendation or advice provided by Interstate Advanced Materials. Each customer of Interstate Advanced Materials must identify and perform all tests and analyses necessary to assure that its finished parts incorporating materials from Interstate Advanced Materials will be safe and suitable for use under end-use conditions.