Plastic injectionmolding in theLC Valley.
Cascade Plastics runs a new 36,000 sq ft molding plant in North Lewiston. We mold high-volume plastic parts and packaging for manufacturers across the Northwest and the West Coast.
A new plant.
A proven molding team.
Cascade Plastics opened in North Lewiston in 2026 to mold plastic trays and packaging for one of the valley's largest manufacturers, right here at home.
We're part of an established family of injection molding plants in Minnesota and Arkansas. That experience now runs in Idaho, ready for manufacturers across the Northwest who want a molder close by.
Why work with us
- Built for volumeProduction molding set up for long, repeatable runs of lightweight plastic parts.
- Close to your dockMolding in the valley cuts the freight on light, bulky parts and shortens the trip to you.
- Backed by sister plantsOur Minnesota and Arkansas plants bring depth and molding know-how to every program.
Built for high-volume runs.
We keep our focus narrow on purpose: thermoplastic injection molding, done at volume, close to the customers who use the parts.
Injection molding
Production molding of thermoplastic parts, from small components to large, thin-wall trays.
Learn more 02Trays & packaging
Lightweight trays, inserts and containers, like the packaging we mold for the ammunition industry.
Learn more 03Bulk resin on site
Three resin silos let us buy material in bulk, which keeps supply steady and costs down.
Learn more 04Group support
Sister plants in Minnesota and Arkansas bring years of molding experience to Lewiston.
Learn moreMolded close to
where it's used.
Plastic parts are light, but they fill a lot of truck. Shipping them across the country adds cost and days. So we build plants near the customers we serve, and from Lewiston the whole Northwest is a short haul.
- Less freight, faster delivery. Spokane, the Tri-Cities, Boise, Portland and Seattle are all within a day's drive.
- A working river town. Lewiston sits where the Snake and Clearwater rivers meet, home to the most inland seaport on the West Coast.
- A supplier you can visit. Walk the floor, meet the team and watch your parts run.
36,000 square feet in
North Lewiston.
Our plant on Seventh Avenue North was built new for injection molding, with three bulk resin silos out front and a team hired right here in the valley.
From print to production.
Send your part
Share a drawing, CAD file or sample, along with your volumes and timing.
Quote & plan
We review the part, talk through material and tooling, and send a quote.
Sample & approve
First parts come off the tool for your review before production starts.
Run & deliver
We run to your schedule and get parts to your dock across the Northwest.
Now hiring in the
LC Valley.
We're building a team of more than 30 people in Lewiston. Full-time manufacturing jobs, close to home, with real benefits.
Have a part that needs molding?
Send us a drawing, a CAD file or a sample part. We'll review it and get back to you with a quote.