Costs
Mycelium insulation panels: US sourcing routes and the cost drivers to know
Mycelium insulation panel pricing is illustrative, not a supplier rate card. See US sourcing routes, invoice line items, and the factors that move landed cost.
What to take away
- Direct purchase routes in the US run through Ecovative Design in Green Island, NY, and DIY spawn from Mushroom Mountain or North Spore.
- Delivered panel cost remains $3.50 to $12 per square foot for most orders. These figures are illustrative, not a rate card from one supplier.
- Mushroom Mountain sells a 5.5 lb sawdust spawn bag for about $30. This is the cheapest DIY path but leaves growing and curing to you.
- 475 High Performance Building Supply in Brooklyn stocks vapor-open tapes and wood fiber boards that pair with mycelium.
- Crating, freight and brokerage add 30 to 60 percent to imported board, but domestic spawn orders avoid that.
Why no US price list exists
Ecovative Design does not publish a per square foot price for insulation. The growth process, described in this overview of mycelium, makes density vary between batches. The Building Technologies Office funds research on emerging insulation but sets no commercial index.
Where US buyers can actually order
Direct grower: Ecovative Design in Green Island, NY, runs a mycelium production facility. Its MycoComposite product line supports custom board orders, but it does not market a standard residential insulation panel. Buyers fill out a project form and receive a quote.
DIY spawn: Mushroom Mountain in Easley, SC, and North Spore in Portland, ME, sell mycelium spawn and grow bags. Mushroom Mountain sells a 5.5 lb sawdust spawn bag for about $30. North Spore ships grain spawn to all US states. This path suits builders who want to grow panels in site built molds.
Specialty distributors: 475 High Performance Building Supply in Brooklyn sells Pro Clima tapes and Gutex wood fiber, both vapor-open. Its product desk can route mycelium panel requests to importers. Green Building Supply in Fairfield, Iowa, stocks natural insulation and handles special orders for bio-based boards.
Acoustic alternative: MOGU, an Italian company, sells Mogu Acoustic panels made from mycelium and textile waste. US design showrooms carry samples for wall and ceiling use. These panels are decorative acoustic products, not thermal insulation.
Line by line: what an invoice contains
| Line item | USD per square foot |
|---|---|
| Panel, 2 inch, single room | $6.00 to $12.00 |
| Panel, 3 inch, pallet quantity | $3.50 to $7.00 |
| Crating and palletization | $0.40 to $1.20 |
| Freight to a US address | $1.00 to $3.50 |
| Customs, brokerage and duty | $0.30 to $1.10 |
| Tape and vapor-open wrap | $0.20 to $0.60 |
Add 10 to 15 percent for breakage on long hauls, because crushed board cannot be pressed back into shape. Panels bought at the wrong thickness usually become waste, which is the pattern covered in Material selection mistakes.
Spawn and mold supplies replace these lines for DIY growers. A $30 spawn bag, a $40 plywood mold and $15 of wrap can produce a test panel.
What moves the number
Order size cuts unit cost fastest, because setup and freight spread across more board. Thickness and density raise it, since both use more raw material per panel. Distance decides the rest. A domestic grower two states away usually beats an imported pallet on landed cost.
Minimum order quantity is the quiet driver. Ecovative quotes custom projects by board volume and may set a minimum order. Mushroom Mountain and North Spore have no panel minimum because they sell spawn. Freight also scales by pallet count, so splitting a shipment rarely saves money.
Ask for a landed cost in writing. Quotes that separate freight and brokerage can change after the order. Certification adds cost without improving the board. Compare at least two landed quotes before committing to a pallet. Buyers who weigh comfort above payback should read Natural insulation upgrades before paying a premium.
What quotes leave out
Most quotes exclude what decides whether the panel performs. Edge tape, rim joist air sealing, and a vapor-open weather barrier rarely appear. So does disposal of crushed board: once tape and mastic cling to it, it cannot be composted.
Shipping damage is the other gap: a crushed pallet is a total loss, and most sellers shift that risk to the buyer.
A panel at $4 per square foot on a 1,200 square foot ceiling is $4,800 in material before freight. Sealing and labor often match that figure.
Ask for a product-specific Environmental Product Declaration, because industry averages hide the gap between plants. Request the R-value at the thickness you are buying, not the best figure in the brochure. Check the insurance terms before the pallet leaves. The regrets that follow natural insulation usually trace back to air sealing left out of the quote.
Where people overspend
- Paying import freight when a domestic grower is one state away.
- Reordering small batches instead of one pallet.
- Buying extra thickness to reach an R-value that air sealing would deliver more cheaply.
- Skipping a moisture plan and then paying twice for board.
- Treating a pilot product as a proven one.
Owners who log moisture readings before ordering tend to spend less. Brokerage and duty rarely appear on the first quote, so the final invoice surprises people. Disposal fees rarely get counted either.
The largest single overspend is usually the wrong thickness. A three inch panel bought to fix an air leak costs more than the tape that solves it.
Pallet minimums push buyers toward rooms they had not planned to insulate, and that extra board often goes to waste. Small rooms change the math fastest, as Small-space natural insulation sets out.
