Rigid foam supplier in Duluth, Minnesota
The most durable rigid foam on the market
High density XPS foam made of 85 percent post-consumer recycled polystyrene is the new standard in foam board for construction and concrete work.
- R-5 per inch, half inch through 3 inch
- ETL certified, ASTM C578-19
- Delivered on the date you need it
I need foam delivered
Pure performance
The same board does all three. What changes is the grade and the thickness.
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Concrete forms
The form holds the concrete with no lumber behind it, and we supply the ninety degree corners other systems leave out.
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Continuous insulation
Board outboard of the studs covers every thermal bridge the framing creates. Already code in Washington.
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Monolithic slab systems
Frost protection, a vapor barrier, and a surface a crew can drive a power buggy across.
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Delivered
Our own truck, on the date your crew needs it, across the Upper Midwest.
The new standard
Built to be better.
ECO 40 is remarkably tough, with the strength to handle up to 4x the load of standard 25 psi foam. It is built for demanding jobsites, delivers R-5 per inch, and is made with 85% post-consumer recycled polystyrene. So you get a stronger insulation board while putting recovered material back to work.
Performance that matters.
Your jobsite has enough issues to deal with. Eco Foam is one step toward a quieter day.
- Easy install, higher performance
- It does not crack on installation
- It does not fail when you drive over it
- Always delivered when you need it
What is not to love.
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Residential and light commercial
Eco 40
40 psi compressive strength
From $22.00
View spec
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Commercial and heavy load
Eco 60
60 psi compressive strength
Priced on request
View spec
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Industrial and structural
Eco 100
100 psi compressive strength
Priced on request
View spec
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Coming soon
Homeowner and lumber yard
Eco 25/30
25 to 30 psi compressive strength
Spring 2027
View spec
most crews buy
polystyrene
thickness
Drive on it. At 40 psi a crew can run a power buggy or a mini skid steer straight across the board without damaging it, so you keep your pour reach and can often take the pump truck off the job entirely. That same pass ruins the 25 psi board sold at most supply houses.
Recycled, and better for it. Eighty five percent of the finished board is post-consumer polystyrene collected in the United States: foam packaging, cups, appliance padding, offcuts from rigid insulation. Recycled content normally means a discount and a worse product. Here it is the reason the board performs.
Duluth Local
Once you try it, you'll never go back.
Eco Foam has been picked up across the build. Foundation crews like it because it is one less thing that can go wrong on the day of a pour. Driveway and slab on grade guys like it because it cuts the risk of uneven ground, takes the heaviest loads Duluth can throw at it, and does not take on moisture the way regular foam can. Contractors come back to it after trying it once.
ECO 40
Continuous insulation, outside the framing
One unbroken layer across the outside of the wall, so the studs stop acting as a thermal bridge.
Read moreECO 40
Below grade, before backfill
Holds up under soil pressure and does not wick, so the R value it starts with is the R value it keeps.
Read moreECO 40
Under the tubing, not just around it
Sends the heat up into the room instead of down into the subgrade, which is the whole reason a heated slab gets insulated underneath.
Read moreECO 60
Where the load is a vehicle
60 psi under wheel loads and freeze thaw, and ECO 100 for industrial floors and cold storage.
Read moreECO 40
The form that stays in the slab
The form is never stripped and hauled off. It becomes the insulation.
Read moreOn our own trucks
Ordered means it shows up
Every one of us came off an on-site crew, so we know what a missed material date costs. The system is built to hit your pour date, and if that means running stock out personally, that is what happens.
Read moreApplications and properties
Why crews spec it, use by use
Eight reasons the board ends up on the job, and where to read further on each.
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Slab on grade starts with the board. Our rule of thumb is short: if you are pouring concrete on the ground and it is not a footing, there is foam going underneath it. A continuous layer under the whole pour stops the slab losing heat straight into the subgrade.
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40 psi carries four times the load of standard 25 psi board. That is what lets a crew run a power buggy or a mini skid steer straight across the sheet, keep their pour reach, and often take the pump truck off the job entirely.
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Extruded foam does not drink. ECO 40 takes on well under one percent water by volume in immersion testing, where expanded bead board keeps wicking. Under a slab, wet insulation is failed insulation, and the R value goes with the water.
Read more -
Radiant heat needs something to push against. Board under the tubing sends the heat up into the room instead of down into the ground, which is the whole reason a heated slab is insulated underneath rather than only around the edge.
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Closed cell all the way through. Extrusion builds one uniform closed cell structure rather than pressing beads together and leaving the gaps between them, and no ozone depleting blowing agents are used to make it.
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85 percent post-consumer recycled polystyrene. Foam packaging, cups and rigid offcuts collected in the United States, then extruded into structural board in Thunder Bay. Recycled usually means discounted. Here it is the reason the board is better.
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It survives the site. Rigid board takes boot traffic, rebar chairs and dropped tools without crushing, and the storage rules are short: keep it flat, keep it covered, keep it away from solvents.
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Plan the pour, not the shortage. Sheets come 2 by 8 or 4 by 8, in thicknesses from half an inch to three inches, so take-offs are straightforward and delivery is scheduled against your pour date rather than a warehouse queue.
Read more
85 percent post-consumer
Recycled usually means worse. Here it means better.
Foam plates, foam cups, television packaging, appliance padding, offcuts from rigid insulation. All the material that normally goes in a skip, collected in the United States and extruded into structural board in Thunder Bay.
It is hard to comprehend that you can make a better product with recycled material. Usually you have to discount it to sell it. This is a better product because of the recycling.
Eco Foam Solutions
What customers say
Trusted by the crews who pour the concrete
Five out of five across every Google review, from contractors across the Upper Midwest.
I have used them and their materials several times. Not only is their material far better than their competitors but the service is as well. I was in a jam and Caleb hand delivered what I needed within the hour. I highly recommend.
Amazing product! It is the only foam we will use beneath our concrete. It performs far better than its direct competitors at a similar price. Service has been excellent, and our materials always show up on time.
EFS is a top-notch supplier. Their high-density eco foam is an excellent new product, strong, clean, and reliable. Great quality materials and service we can count on. Highly recommend.
Eco foam in my opinion is the only foam worth using. The quality and strength of the foam impresses me every time I work with it and use it. I will be using Eco foam for all of my projects. [excerpt]
Best foam on the market. Great service and fast delivery.
Solid product and support.
Questions we get on the phone
Can equipment be driven over the foam before the pour?
Yes, on the 40 psi and above. Crews run power buggies and mini skid steers directly across it without damaging the board, which keeps your pour reach and often removes the need for a pump truck. Ordinary 25 psi board from a big box store will not survive that pass.
What is the recycled content?
A minimum of 85 percent post-consumer polystyrene. Waste is collected in the United States and manufactured into board in Canada, under tighter production regulations than the equivalent US process.
Which grade do I need under a slab?
For residential and light commercial work, 40 psi. For parking structures, fire halls and anything carrying heavy truck traffic, 60 psi. For industrial and structural loads, 100 psi. Tell us the application and we will confirm the grade.
Do you deliver, and how fast?
Yes, across the Upper Midwest, with delivery scheduled to the date your crew needs it rather than whenever a truck is going that way.
Pick your material, pick your delivery date
Order online or text your reorder. We schedule the drop and it lands on site when your crew needs it.