ThruFlow Interlocking Panels are the ideal choice for decks, docks and walkways. ThruFlow is a unique polymer panel that allows water; debris and sunlight to pass through your walking surface, keeping your walking surface clean. Sunlight and water penetration in concert helps to keep vegetation alive, helping to minimize the effect of your walking surface on the environment.

What colors does ThruFlow™ come in?

Are ThruFlow™ Interlocking Panels made of recycled materials?

ThruFlow is made from 100% virgin plastic with no recycled content. The use of premium virgin plastic allows ThruFlow™ to offer increased load bearing and flexural stiffness properties. This allows ThruFlow™ to be used on 16” centers like most existing structures, without the need for further support. ThruFlow is 100% recyclable.

What sizes do ThruFlow™ Interlocking Panels come in?

ThruFlow is currently offered in two sizes; Three Foot Panels and Four Foot Panels.

The three-foot panels are meant to cover approximately 36 inches in length and 12 inches in width with a product thickness of approximately 1.25 inches.

The four-foot panels are meant to cover approximately 48 inches in length and 12 inches in width with a product thickness of approximately 1.25 inches.

Will the color of ThruFlow™ change?

ThruFlow™ panels should not change color significantly (more than 15% from new) over the first 7 years of exposure.

Do ThruFlow™ Interlocking Panels come with a warranty?

Yes, ThruFlow™ has a limited warranty. The ThruFlow™ limited warranty offers coverage against material defects in workmanship and materials, and against rot, decay and termite damage, for a full 7 years. The total life expectancy for ThruFlow™ interlocking panels is currently undetermined. Accelerated age testing is ongoing and to date we know of no environmental factors that harm or cause significant deterioration to ThruFlow™. See warranty details.

How do I dispose of ThruFlow™ panels? Can it be taken to a landfill?

ThruFlow™ contains no toxic preservatives and is 100% recyclable. Please consult your local authorities on whether you need to recycle ThruFlow™ construction waste or dispose of with regular construction waste.

What types of fasteners are recommended for ThruFlow™ Interlocking Panels?

We recommend high quality screws such as #10 self-tapping stainless steel screw to take advantage of ThruFlow’s™ longevity. Pre-drilling is not required as the holes are molded in with a countersink for your convenience, screws should be clear through the panel and fastened into the structure of your structural frame. Remember not to tighten the screw down to allow for expansion or contraction.

Are Thruflow™ Interlocking Panels structural?

No. While ThruFlow™ is tough and durable, it does not have the same stiffness as wood. Therefore, it is not intended for use as a load-bearing structural member.

What joist spans should I use for my dock, deck or walkway when using ThruFlow™?

For ThruFlow™ panels, the joist spacing should be 16" on center for all applications (18” for 3’ Product), which is the same span generally recommended for wood. Special applications/loading conditions will require engineering analysis and/or reduced spans.

Do ThruFlow™ Panels require gapping between panels?

Yes, in both directions. While ThruFlow™ Interlocking Panels will not shrink or swell due to changes in moisture, changes in temperature will cause slight expansion/contraction. Therefore, gapping is required both side-to-side and at the panel ends to allow for thermal expansion/contraction. Rules of Thumb: ThruFlow Interlocking Panels should be allowed to grow minimum of 1/8" in total length (1/16” each end) and 1/16” in total width (1/32” per side) for every 30°F of difference between installation temperature and the hottest temperature expected.

Can ThruFlow™ be painted or stained?

It is not recommended to paint or stain ThruFlow™. Stain will not penetrate well and paint will not adhere well to the panel.

Does ThruFlow™ provide good traction?

ThruFlow’s™ entire surface has a knurled finish for slip resistance.

Can ThruFlow™ be used in full ground contact? Is treating required?

ThruFlow™ is ideal for ground contact applications such as walkways and in-ground pool surrounds. ThruFlow™ is resistant to rot and insects, and absolutely no treating is required.

Similar Products: Shore Dek.