The Manufacturing Process
From Recycling Bin
to Backyard.
The fascinating journey of how a simple milk jug becomes a beautiful, lifelong Adirondack chair.
What Is Poly Lumber?
Poly lumber (also called HDPE lumber) is an engineered material made primarily from recycled high-density polyethylene plastic. It looks and feels remarkably like wood, but it never rots, warps, cracks, splinters, or requires painting. It's the most durable outdoor furniture material available today.
Step by Step
The 6-Step Process
Collection & Sorting
It starts with high-density polyethylene (HDPE), primarily from everyday milk jugs and detergent bottles collected through municipal recycling programs across the country. These containers are sorted, inspected, and prepared for processing.
Cleaning & Shredding
The plastics are rigorously washed to remove labels, residue, and contaminants. Once clean, they are ground into small, uniform flakes — the raw material that will become your furniture.
Melting & Color Mixing
The clean flakes are fed into an industrial extruder and melted at nearly 400°F. Here is where the magic happens — UV stabilizers, antimicrobial agents, and rich color pigments are mixed directly into the molten plastic, creating color that goes all the way through.
Extrusion into Lumber
The molten, colored mixture is forced through a precisely engineered die to form solid boards of 'poly lumber.' The boards emerge in the exact dimensions needed for furniture components.
Cooling & Inspection
The boards are carefully cooled, cut to precise lengths, and rigorously inspected for consistency, color uniformity, and structural integrity. Only boards that meet strict quality standards move forward.
Amish Craftsmanship
The poly lumber boards are shipped to Berlin Gardens in Millersburg, Ohio, where Amish craftsmen hand-route every edge, precision-drill every hole, and assemble each piece with marine-grade stainless steel hardware.
Poly Lumber vs. Traditional Wood
✅ Poly Lumber (Our Furniture)
- ✓ Never rots, warps, or cracks
- ✓ No painting or staining required
- ✓ Resists insects and fungi
- ✓ Color goes all the way through
- ✓ 20-year poly-lumber warranty
- ✓ Made from recycled materials
- ✓ No toxic chemical treatments
- ✓ Easy to clean with soap and water
❌ Traditional Wood Furniture
- ✗ Rots and warps in moisture
- ✗ Requires annual painting or staining
- ✗ Susceptible to termites and insects
- ✗ Paint chips and peels over time
- ✗ Typically 5–10 year lifespan
- ✗ Requires tree harvesting
- ✗ Often treated with toxic chemicals
- ✗ Difficult to clean and maintain
Ready to Experience the Difference?
Visit our showroom and feel the quality of poly lumber furniture for yourself.