ZahnTech
Call (605) 202-5192
Lennox, South Dakota · 100% recycled

Built from what
we threw away.

Fence posts, ground protection and dunnage boards made from landfill plastic. 100% recycled. Lennox, South Dakota.

or call (605) 202-5192
Gallery

The post, up close.

The pointed drive end of a ZahnTech composite post
Drive endThe pointed drive end of a ZahnTech composite post.
Cutting a ZahnTech composite post with a circular saw
Cuts like woodCutting a ZahnTech composite post with a circular saw.
A Generations composite fencepost held in a torch flame during a fire test
Fire resistantNon-conductive, UV stable, fire resistant.
A ZahnTech composite post holding a steel rail fence
In the fence lineA ZahnTech composite post holding a steel rail fence.
A stack of pointed ZahnTech composite posts ready to drive
Ready to driveA stack of pointed ZahnTech composite posts ready to drive.
A finished composite post fence line under open sky
Built to stayA finished composite post fence line under open sky.
Rigmat pads on a job site

By the numbers · Testing transparency

ZahnTech by the numbers

What if the next fence was the last fence you, your kids, or your grandkids ever had to build?

Lennox, South Dakota

Diverted
—lbs of plastic diverted from landfills
Posts
—composite posts worldwide
Compression
—average compression (pending)
Life
—estimated service life (pending)
Flexural
strength testing complete — figures publish at launch, pending confirmation
Leach
testing complete — results publish at launch, pending confirmation

Performance figures are being confirmed with the ZahnTech team and publish at launch.

Waste: ReImagined

Garbage, given a second life.

Most recyclers can only use a sliver of mixed plastic. We built a new way to use nearly all of it.

01

Collect: the plastic nobody wanted

Mixed #1, #2, #4, #5 and #7 plastics headed for the landfill.

02

Convert: a new way of making

Next gen extrusion turns nearly all of it into product.

03

Build: a post for generations

Set once, built to stand for generations.

Generations™ composite products

Made to outlast the land it stands on.

Six products, one 100% recycled composite. Pricing depends on size and freight, so every item is quoted by a real person in Lennox.

ZahnTech 6 in square composite fence post

Fence posts

4 in line posts and 6 in posts, round and square. Drive, cut, drill, nail or staple. No insulators needed.

  • 4 in and 6 in
  • Round or square
  • Fencing
Request a quote for Fence posts

Rigmat pads

Won't soak up water or oil, rot or splinter. Lay it, use it, reuse it.

  • Reusable
  • Ground protection
  • Size on quote
Request a quote for Rigmat pads

Crane rigmat pads

Outrigger support for cranes and lifts, from 100% recycled composite.

  • Outrigger support
  • Cranes and lifts
  • Size on quote
Request a quote for Crane rigmat pads

Dunnage boards

Blocking and spacing that stands up to weather, weight and years of reuse.

  • Blocking and spacing
  • Shipping and storage
  • Size on quote
Request a quote for Dunnage boards

6x6 timbers

Square timbers for corners, gates and builds that need to last.

  • 6 x 6 in
  • Corners and gates
  • Pending
Request a quote for 6x6 timbers

Custom profiles

Need a shape we don't stock? Send the size and we'll quote it.

  • Your size
  • Any profile
  • Quote only
Request a quote for Custom profiles

Let's talk

Got a fence, a job site or a question? We'd love to hear about it.

  1. 1Leave your name and number.
  2. 2We call you right back, usually within moments.
  3. 3Talk through sizes, freight and pricing. No pressure.
"It's strong! It will hold up forever. We'll never have to do any staining, replacement, or anything like that!"
JessicaZahnTech customer

Call me now

Prefer to dial? Call (605) 202-5192

From Avery's floor · sound on

The ZahnTech story, from the floor

Real footage from Avery: a composite profile coming off the extrusion line in Lennox, October 2026. The full 90-second brand film takes this slot when it is cut. The video only loads when you open this window.

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