HD36 High Quality Foam

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Our HD36 High-Quality foam offers superior performance, cushioning, and comfort, all at an affordable price. This high-quality, high-density foam provides medium support for more vigorously used products like couch and chair seating cushions, while still providing softness and comfort. This material is one of our most popular upholstery foams, and can also be used in body wedges, pet beds, and as packaging inserts.

HD36-HQ is available in a range of sizes and thickness to meet the precise requirements of your project. Thicknesses range from 1-inch for minimum support and cushioning to a luxurious 8-inch option for maximum support.

Custom Cutting is Available!
We can cut custom sizes of HD36-HQ foam for any project to fit your exact needs. See Seats and Cushions for details.

Certipur-US logo
Foam meets CertiPUR-US® certification.
Resources Notes

Manufacturing Tolerances
Products may carry a size tolerance depending on the style and job. Please see our Tolerance Table.

Standard Sheet Sizes/Quality
Standard sheets of foam are cut slightly larger than the listed size to compensate for shrinkage during packaging, transit, and delivery. Sheets may contain rough edges. Any yellowing/discoloration of the foam is a byproduct of exposure to air and light and does not represent a flaw, damage, or defect in the material.

Write a Review

Verified Buyer
Great quality
Valerie Dascoli | July 2nd, 2024
I needed a good dense foam for a custom upholstery project, and not having ordered from here before knew it may be a risk. The foam arrived quickly, was large enough in one sheet for my project (I ordered a large sheet), was easy to cut with an electric knife, and did just what I needed it to.
Verified Buyer
Great foam, excellent service and speed
Andrea | June 19th, 2024
I've purchased several sheets, half sheets and custom cut pieces. They always arrive quickly and I'm always amazed at how well they handle being shipped. Just great foam, great service and a fair price. I don't buy foam from anyone else!
Verified Buyer
Excellent cushion for my chairs
Mary Jane | April 24th, 2024
Purchased this to reupholster 4 chairs I found on the curb, I used this and it worked perfectly under the leather.
Verified Buyer
Great foam, great price
Ewan Brown | April 24th, 2024
High quality, high density foam perfect for my sailboat’s v-berth and aft berth. I got 5” thick which has been very comfortable for sleeping on. There is no lingering smell after opening and it sprung out to its original dimensions within minutes. Also pretty easy to cut with a serrated knife if you don’t need a perfect edge. It’s more durable than I expected and should last plenty long for the price. I appreciate that customer service reached out to confirm the sizes I ordered since a “Full” sheet of foam and “Full” mattress cover are not the same dimensions. I’ll be back for my next foam project!
Verified Buyer
Great quality
Darya | January 27th, 2024
Ordered foam for a cushion project, great quality and density
Verified Buyer
Reddit sent me
Ian Knapp | January 20th, 2024
This Redditor gives you a 5+ stars, 5" thick foam on top of a fairly tall back pit sectional couch that still looked great but had sagging points, with a little manual structural improvement underneath, made this couch feel amazing again! I'd custom order a full sheet cut down next time, but the half sheet works just peachy.
Airstream cushions
Adam | June 19th, 2023
Replaced the foam in our 2020 Airstream Globetrotter. The cushions are now so much more comfortable. Excellent product !!
Wonderful foam
Jenna | April 17th, 2023
I have now bought a lot of products from the Foam Factory and I am very happy with all of them. I recently purchased 1/3 sheet of the HD36, 6" for a cot mattress. I also purchased the same, in 3" of the super soft foam to use on top. I have a niece who lives in Chicago and I needed a comfy place for her to stay when she visits. She's petite and the cot was her idea, now she has her own space in my office when she visits. She says the foams are more comfortable than her Purple mattress at home! Highly recommend foam factory!!
Excellent foam
Roger Rittmer | April 14th, 2023
Used this foam over solid board seat and acheived excellent results. Soft to sit on while firm enough to support. Foam and company both easy to work with.
Great company to do business with
Laurie S Murray | April 4th, 2023
Fantastic quality foam! Exactly what I needed to revive my old sofas seat cushions.. Delivered promptly and packaged well. I’ll definitely be doing business again with the Foam Factory again. Great pricing too!!! Don’t hesitate to purchase from this company.. You will get more than you paid for!
Good quality
Becky Decker | March 23rd, 2023
Got 1 inch. Used it to cover up an old vehicle seat before putting on the new upholstery. Very good quality. Will buy again.
Best ever foam
Marian | December 10th, 2022
I spent a lot of time researching online and this measured up best as far as a number of criteria that mattered to me. Then the customer service was superior to any other. Finally the actual product was far better than i hoped for. I have a Lux foam for a wide home made couch also use daily as a bed and it's been the best , most comfortable and firm enough and wonderful to sleep or sit on that i ever had. Where i had spinal fractures it was especially important to have good and also comfortable support. This did it and helped my spine heal better too. Now i am going to get one for bed and car cushions.
Done, much better, should have done sooner
Mark Jordan | November 23rd, 2022
I purchased 2 different pieces of foam. High quantity. Only problem is I have redone, cars, etc.for years. My wife first time. Who knew, she’s an expert. Nice outcome despite all that. Mj
Great price and product
Lori | October 6th, 2022
After looking at many local fabric/upholstery stores near me and other online sites. The cost and quality of your product was great. I was surprised at the cost from most places was way more than I could afford. But yours was within my budget and so far has worked out great! Thank you and I am sure I will be ordering more to finish my couch.
Great service and product
Lynn | September 22nd, 2022
I am a returning customer to this company. Their products are top quality with good descriptions and detail that others don’t give. Service, delivery and packaging - they have earned my confidence!
WAYNE K | September 9th, 2022
Excellent Quality
Jory | July 15th, 2022
This foam was used in redoing our chairs and the results are amazing!
Replacement RV Dinette Seat
Monica | June 22nd, 2022
Excellent quality for RV dinette seat cushion. Cut fairly easily with Boxcutter blade and straightedge. Dense and comfortable. Smell went away after airing for 24 hours. Well worth it.
Perfect product
Alainna Dunham | May 14th, 2022
The 24x76x5 inch foam sheet was exactly what I needed for my project. The order arrived quickly and is great quality. I’ll be ordering again
Fantastic Solution
Sherri | April 1st, 2022
The whole experience was great. I had questions about measurements which were quickly answered with a single phone call. The cushion arrived quickly and my couch issues are no more! So easy! Appreciate the certification for lack of toxic chemicals as well. So important.
Everybody Loves
Larry | March 29th, 2022
Replaced old worn out couch cushings with two of them had broken springs. Now it is like new again, even better.
Excellent foam/excellent service
Nora | October 5th, 2021
i purchased 2 HD36 high quality foam cushions to replace ones on my couch that were too soft. They came quickly, are as firm as promised, and the customer service was excellent. The price was very good also. I am very happy and have recommended this company to several friends already.
I needed to fix my cushons
Robert Bean | February 25th, 2021
I orderd new foam cushons for our living room set. We couldn't be happier with the results. our set which is only a few years old was getting so uncomfortable. Now it is better than when we bought it.
Great foam for seating
Cameron | February 13th, 2020
This is great foam. I make many custom cores for customers, replacing older worn out foam. Everyone loves the new support.
Just what I was looking for
Gary | January 28th, 2020
I purchased some of this foam to replace the seat cushions in a couple of nice couches that we have had for 15+ years as the fabric and frame were still in very good condition. I purchased 5 inch thick foam and double wrapped it in Dacron, as this is how the previous cushions were manufactured. I was concerned that this foam would be too soft. The new cushions are very supportive and they are neither hard as a rock, or too soft. The couches are again comfortable to sit on or lay on. Thanks Foam Factory!
Great product
Marilyn | December 27th, 2019
By far the best foam I have found for replacing seat cushions on furniture.
Great product
Paresh Chauhan | September 4th, 2019
Replaced my patio cushions with a this product. Vastly improved the quality of my patio furniture with this foam. Super impressed with the quality and delivery.
Very pleased!
Marlena Jo Parker | August 28th, 2019
Best price, concise product information, easy order process, fast ship time, quality product. Will use them again if need arises, definitely recommend this company.
HD36 36X82 5" & 4" 24X82
Diane Boileau | May 15th, 2019
Price, quality, purchasing, speedy delivery process exceeded all of my expectations. Including tutorials and education on foam quality, was an added benefit. We used for Airstream restorations.