High Density Polyurethane Antimicrobial Foam (Firm) 1" x 24" x 80"
SKU: 281F2480
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High Density Polyurethane Antimicrobial Foam is the best choice when you need a high-quality, long-lasting and dependable foam ideal for heavy-use applications. Its density means it will provide excellent support while still delivering on comfort, making it ideal for high-traffic seating cushions (such as couches and sofas), benches, cabin seating, automotive seating, sleeping berths and certain outdoor cushions. Its antimicrobial properties help prevent the growth of mold and mildew.

For outdoor use, Antimicrobial High Density foam can be used, and silk film should be wrapped around the foam to help keep moisture out. Also use an upholstery fabric that has high water resistance or can be treated with a waterproofing solution.

High Density Polyurethane Antimicrobial Foam will typically last up to 12 years. It has a firm stiffness, a density of 2.8 pounds per cubic foot and a foam IFD (Indentation Force Deflection) of 60 pounds.

The Sailrite® Blade Foam Saw expertly cuts through a full range of foam types. A standard electric kitchen knife can also be used, though the results won’t look as professional. To glue two pieces of foam together, Sailrite recommends using spray adhesive. Foam can also be glued on the sides to make a wider piece or layered to make thicker cushions. If layering foams with different stiffness levels, the firmer foam should be the bottom layer.

Please Note: Sheet size can vary up to 2 inches and length and 1 inch in width.

Important: Items are compressed for shipping, we recommend unrolling as soon as possible. Compressed foam takes up to a week to regain its original size and shape. Allow foam to fully decompress before cutting or using in a project.


Sale Unit: EA
Length: 80"
Width: 24"
Thickness: 1"
Foam Density: 2.8 pounds per cubic foot
Foam IFD: 60 pounds
Special Features: Antimicrobial/Biocide
Foam Material: Polyurethane
Foam Firmness is a measurement of the foam’s softness. Indention Force Deflection, or IFD, is the pressure in pounds needed to compress a 50 square inch circular plate 25% of the way into the foam.

At a Glance

Foam Usage: Frequent
Foam Uses: Automotive Seating, Helm Seats, Home Decor Cushions, Patio Cushions, Pontoon Seats, Powerboat Seats, Salon Cushions
Foam Firmness: Firm



A. 1"
B. 24"
C. 80"


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Types of Foam for Cushions & Upholstery

In this helpful video, we will walk you through all the different types of foam Sailrite has to offer. Understanding the properties and uses of different foam types will help you know which one is right for your DIY project. The four types of foam we will cover are high density, medium density, open cell (Dry Fast) and a closed cell foam. After watching this video, you will be able to select the correct foam for your cushion or upholstery application.

Gluing Foam With Foam Lock Spray Adhesive

We test the holding strength of adhesive spray and see how it holds up when used on different foam types. This spray offers quick tack and high coverage while providing a very strong bond.

Cutting Foam With the Sailrite® Blade Foam Saw

This high-quality foam cutter is a great tool for both serious DIYers and small upholstery shops. It delivers smooth, clean cuts through many types of foam for professional-looking results every time.

Cutting Foam With an Electric Kitchen Knife

This video shows you how to use a standard electric kitchen knife to trim your foam to size, including some tricks to achieving a sharp cut line and using weights to keep the foam in place while cutting.


Overall Rating : 4.83 12 Reviews

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Verified Purchase

exactly what I needed

joseph & lorraine martinez
Verified Purchase


My son used the high density foam for my old 1996 Cadillac Sedan Deville, driver seat. I purchased new leather for it. The foam is great, it is bounce back immediately, soft, secure, boosted up the seat much more, it is perfect for car seats, I am glad I found this company.

Billy Jackson
Verified Purchase

Great selection for my boat cushions.

Wayne Teel
Verified Purchase

High quality foam

Resilient and durable.

Judy K
Verified Purchase

I bought this 3" firm, high-density foam to create a chair cushion. I also purchased a piece of 3" high-density foam from my local big-box fabric store. Sailrite's foam is worth the extra $$. It's much denser and firmer and I think will hold up better over time.

Verified Purchase

Help from my friends

Customer service was awesome and helped me order the correct foam

Verified Purchase


Hank Reichle
Verified Purchase

Foam advertised, with quick delivery

Verified Purchase

Great product!

I used this for a motorcycle seat and it worked very well...easily conformed to my homemade seat pan.

Ann Huber
Verified Purchase

Loved the quality. Very supportive in our couch cusions.

We ordered this foam to help boost our couch cushions as we have only had the couch a year and the cushions sag to the frame when we sit in them. I was between ordering the 1 inch thick or next step up, but glad I got the 1 inch one as it fit perfectly! The order came earlier than expected. We unrolled it and let it "breathe" for several days where it expanded a tad more. I loved the quality of the material immediately. We cut the foam using household scissors, which worked fine for us as we only had to cut it in half, and put it in the cushions. They worked beautifully and helped support very well. If we ever need to get foam for other purposes, this is absolutely the company we will use. Thank you!

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