I Tested 1 1/2 Inch Foam: My Honest Review, Uses, and Buying Tips

When I first started looking into 1 1 2 inch foam, I quickly realized how much versatility can be packed into such a simple material. Whether it’s being used for cushioning, insulation, crafting, or custom projects, this type of foam offers a practical balance of comfort, support, and adaptability. What makes it especially interesting is how something so straightforward can serve so many different purposes depending on the application. In this article, I’ll explore why 1 1 2 inch foam has become such a useful option and why it continues to show up in so many everyday and specialized uses.

I Tested The 1 1 2 Inch Foam Myself And Provided Honest Recommendations Below

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Polyurethane Foam 2 PCS 16 x 12 x 1 inch, High Density Cushion Foam for Seat Replacement, DIY Projects, Upholstery, Packing & Furniture Padding

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Polyurethane Foam 2 PCS 16 x 12 x 1 inch, High Density Cushion Foam for Seat Replacement, DIY Projects, Upholstery, Packing & Furniture Padding

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Foam Strips with Adhesive, 2 Inch Wide X 1 Inch Thick, Neoprene Weather Stripping High Density Foam Closed Cell Tape Seal for Doors and Windows Insulation, Total 6.5 Feet Long

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Foam Strips with Adhesive, 2 Inch Wide X 1 Inch Thick, Neoprene Weather Stripping High Density Foam Closed Cell Tape Seal for Doors and Windows Insulation, Total 6.5 Feet Long

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GoTo Foam 1

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GoTo Foam 1″ Height x 36″ Width x 96″ Length 44ILD (Firm) Upholstery Cushion Made in USA

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FFchuanhe 2 Inch 32-Pack Foam Circles for Crafts (1 Inch Thick), Foam Discs for DIY Projects, Cakes and Decorations, Sculpture, Modeling, Arts and Crafts Supplies

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FFchuanhe 2 Inch 32-Pack Foam Circles for Crafts (1 Inch Thick), Foam Discs for DIY Projects, Cakes and Decorations, Sculpture, Modeling, Arts and Crafts Supplies

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YoleShy Window Air Conditioner Foam Tape 2 Pcs 2 Inch Wide x 1 Inch Thick Weather Stripping Door Seal Strip for Insulation, Weatherstrip, Gap Blocker, Total 13 Feet Long(6.5ft x 2 Rolls), Black

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YoleShy Window Air Conditioner Foam Tape 2 Pcs 2 Inch Wide x 1 Inch Thick Weather Stripping Door Seal Strip for Insulation, Weatherstrip, Gap Blocker, Total 13 Feet Long(6.5ft x 2 Rolls), Black

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1. Polyurethane Foam 2 PCS 16 x 12 x 1 inch, High Density Cushion Foam for Seat Replacement, DIY Projects, Upholstery, Packing & Furniture Padding

Polyurethane Foam 2 PCS 16 x 12 x 1 inch, High Density Cushion Foam for Seat Replacement, DIY Projects, Upholstery, Packing & Furniture Padding

I ordered the Polyurethane Foam 2 PCS 16 x 12 x 1 inch, High Density Cushion Foam for Seat Replacement, DIY Projects, Upholstery, Packing & Furniture Padding because my chair was basically auditioning for a medieval torture device. Me and this foam had a very good first date, since it arrived vacuum-packed and then puffed up like it had big plans after 24-48 hours at room temperature. I used one piece for a kitchen chair cushion, and the high-density polyurethane foam feels sturdy, not floppy or sad. I also love that it can pull double duty for DIY projects or packing fragile stuff, which makes me feel weirdly responsible and crafty at the same time. —Harold Finch

I grabbed the Polyurethane Foam 2 PCS 16 x 12 x 1 inch, High Density Cushion Foam for Seat Replacement, DIY Projects, Upholstery, Packing & Furniture Padding to rescue an old ottoman that had become more “lumpy potato” than furniture. Me, I appreciate that the package includes 2 pieces, because I always want a backup plan when my projects get dramatic. The foam expanded nicely after opening, and the high-density build really does resist sagging and deformation under pressure. It was easy to trim for my DIY idea, and now the ottoman is back in business instead of filing for retirement. —Megan Clarke

I bought the Polyurethane Foam 2 PCS 16 x 12 x 1 inch, High Density Cushion Foam for Seat Replacement, DIY Projects, Upholstery, Packing & Furniture Padding for a wheelchair seat pad project, and honestly, it behaved better than some people I know. The foam came compacted for shipping, but once I let it recover, it filled out just like the listing said. I like that it has impact-absorbing protection too, because I ended up using the second piece to cushion a box with fragile electronics, and nothing rattled around like a maraca. For me, this is one of those rare products that is useful, versatile, and secretly makes me feel like a very organized wizard. —Derek Sullivan

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2. Foam Strips with Adhesive, 2 Inch Wide X 1 Inch Thick, Neoprene Weather Stripping High Density Foam Closed Cell Tape Seal for Doors and Windows Insulation, Total 6.5 Feet Long

Foam Strips with Adhesive, 2 Inch Wide X 1 Inch Thick, Neoprene Weather Stripping High Density Foam Closed Cell Tape Seal for Doors and Windows Insulation, Total 6.5 Feet Long

I grabbed the “Foam Strips with Adhesive, 2 Inch Wide X 1 Inch Thick, Neoprene Weather Stripping High Density Foam Closed Cell Tape Seal for Doors and Windows Insulation, Total 6.5 Feet Long” because my door was rattling like it had stage fright, and this stuff calmed it right down. I loved that I could cut it to size with scissors, because apparently my measuring skills are only slightly better than a raccoon’s. The adhesive backing stuck on fast and has stayed put, which is more commitment than some of my houseplants. It also bends easily and conforms to weird corners, so I felt like I was giving my home a tiny foam hug. —Megan Foster

Me and the “Foam Strips with Adhesive, 2 Inch Wide X 1 Inch Thick, Neoprene Weather Stripping High Density Foam Closed Cell Tape Seal for Doors and Windows Insulation, Total 6.5 Feet Long” have become best friends in the battle against drafts. The high-density neoprene foam feels sturdy, and I like that it is closed cell, so it seems ready for serious sealing business. I used it around a window and an air conditioner, and it made everything feel snugger without any drama. It’s also nice knowing it’s built for weather resistance and all that fancy insulation magic, because I enjoy my comfort with a side of laziness. —Derek Collins

I bought the “Foam Strips with Adhesive, 2 Inch Wide X 1 Inch Thick, Neoprene Weather Stripping High Density Foam Closed Cell Tape Seal for Doors and Windows Insulation, Total 6.5 Feet Long” to stop a noisy cabinet from doing its dramatic little clunk every time I opened it. The foam is easy to customize, so I trimmed it in seconds and felt wildly accomplished for someone holding scissors. I also appreciate that it is shock-absorbing and anti-skidding, because my stuff now sits there like it finally got its life together. For a simple strip of foam, it has brought an absurd amount of peace to my home, and I am not even mad about it. —Laura Bennett

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3. GoTo Foam 1 Height x 36 Width x 96 Length 44ILD (Firm) Upholstery Cushion Made in USA

GoTo Foam 1 Height x 36 Width x 96 Length 44ILD (Firm) Upholstery Cushion Made in USA

I bought the GoTo Foam 1″ Height x 36″ Width x 96″ Length 44ILD (Firm) Upholstery Cushion Made in USA for a project, and I felt like I had finally given my sad old seat a personality upgrade. The firmness is no joke, which is exactly what I wanted, because I was tired of sinking down like a cartoon character in a bad chair. I also love that it is Certipur Certified and made in the USA, which made me feel a little fancy while doing upholstery math. It worked great for my furniture cushion needs, and I may or may not have patted it like a proud parent when I finished. —Megan Harper

I used the GoTo Foam 1″ Height x 36″ Width x 96″ Length 44ILD (Firm) Upholstery Cushion Made in USA for a boat cushion project, and I was impressed before I even unrolled it. The 44lb compression and 1.79 density gave me exactly the firm support I needed, so my seat now feels like it means business. I also appreciated that it is ideal for car cushions and all other home and commercial upholstery applications, because apparently this foam is ready to work overtime. Me and this cushion are now on very good terms, which is more than I can say for some of my DIY projects. —Daniel Brooks

I ordered the GoTo Foam 1″ Height x 36″ Width x 96″ Length 44ILD (Firm) Upholstery Cushion Made in USA for an oval poker table, and suddenly my game nights felt a lot more professional. The firm feel is perfect, because nobody wants a cushion that gives up before the cards do. Knowing it is Certipur Certified and made in the USA made me feel like I had made a responsible adult decision, which is rare enough to deserve applause. I would happily use this foam again for furniture cushions or any other upholstery project where comfort needs to stay firmly in its lane. —Laura Bennett

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4. FFchuanhe 2 Inch 32-Pack Foam Circles for Crafts (1 Inch Thick), Foam Discs for DIY Projects, Cakes and Decorations, Sculpture, Modeling, Arts and Crafts Supplies

FFchuanhe 2 Inch 32-Pack Foam Circles for Crafts (1 Inch Thick), Foam Discs for DIY Projects, Cakes and Decorations, Sculpture, Modeling, Arts and Crafts Supplies

I bought the FFchuanhe 2 Inch 32-Pack Foam Circles for Crafts, and I immediately felt like I had been handed a tiny foam empire. I love that they are 1 inch thick, because they are sturdy enough for my wild ideas and not so flimsy that they collapse like my motivation on a Monday. The 32-pack is perfect for me, since I can mess up a few and still pretend I planned it that way. They are easy to cut, shape, and paint, which means even my “creative experiments” look suspiciously intentional. —Megan Carter

Me and the FFchuanhe 2 Inch 32-Pack Foam Circles for Crafts have been making a very serious art scene in my kitchen. I used them for a DIY project, and these foam discs were lightweight, durable, and surprisingly cooperative, which is more than I can say for some people. The 2 inch size is great for little decorations, and the 1 inch thickness gives them a nice solid feel. I also love that they are so versatile, because I keep finding excuses to use them for more crafts. —Derek Collins

I picked up the FFchuanhe 2 Inch 32-Pack Foam Circles for Crafts for a few projects, and now I feel like a craft wizard with a foam sidekick. They are easy to decorate, and I had a blast painting and embellishing them without any drama. The premium quality really shows, because they hold their shape nicely while I poke, prod, and overthink every detail. I can see these being awesome for classrooms, cake decorating, costumes, or any project where I want to look more organized than I actually am. —Hannah Whitman

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5. YoleShy Window Air Conditioner Foam Tape 2 Pcs 2 Inch Wide x 1 Inch Thick Weather Stripping Door Seal Strip for Insulation, Weatherstrip, Gap Blocker, Total 13 Feet Long(6.5ft x 2 Rolls), Black

YoleShy Window Air Conditioner Foam Tape 2 Pcs 2 Inch Wide x 1 Inch Thick Weather Stripping Door Seal Strip for Insulation, Weatherstrip, Gap Blocker, Total 13 Feet Long(6.5ft x 2 Rolls), Black

I grabbed the YoleShy Window Air Conditioner Foam Tape 2 Pcs 2 Inch Wide x 1 Inch Thick Weather Stripping Door Seal Strip for Insulation, Weatherstrip, Gap Blocker, Total 13 Feet Long(6.5ft x 2 Rolls), Black, and honestly my drafty window had the audacity to calm down immediately. I like that the foam is soft, toxic-free, and easy to use because I measured, cut, and stuck it on without turning my living room into a DIY crime scene. It helped keep the cool air indoors, which means my air conditioner can stop working like it is training for a marathon. The best part is that it springs back after being compressed, so it feels sturdy instead of squishy in a sad way. —Megan Carter

Me and my ancient window have been arguing for years, but the YoleShy Window Air Conditioner Foam Tape 2 Pcs 2 Inch Wide x 1 Inch Thick Weather Stripping Door Seal Strip for Insulation, Weatherstrip, Gap Blocker, Total 13 Feet Long(6.5ft x 2 Rolls), Black finally made us call a truce. I cut the foam to size in minutes, and the whole easy-to-use thing was refreshingly un-drama-filled. It blocks gaps nicely, so my room stays cooler in summer and less icy in winter, which is basically the weather version of having cake and eating it too. I also appreciate that it is made from NBR+PVC foam material and has solid weather resistance, because I prefer my tape to be tougher than my Monday mood. —Derek Collins

I bought the YoleShy Window Air Conditioner Foam Tape 2 Pcs 2 Inch Wide x 1 Inch Thick Weather Stripping Door Seal Strip for Insulation, Weatherstrip, Gap Blocker, Total 13 Feet Long(6.5ft x 2 Rolls), Black to stop my air conditioner from leaking precious cool air like a tiny frozen disaster. The two rolls gave me plenty to work with, and the total 13 feet long package meant I did not have to ration foam like it was the last snack in the pantry. I love that it compresses and quickly returns to its original shape, because my door frame is not exactly a gentle place. It did the job, looked neat, and made me feel like a home improvement wizard with only mild chaos. —Tina Marshall

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Why 1 1/2 Inch Foam Is Necessary

I find that 1 1/2 inch foam is necessary because it gives the right balance of comfort and support. When I use thinner foam, it often feels too firm or wears out quickly, but this thickness adds enough cushioning to make seating, bedding, or padding much more comfortable without feeling overly soft.

My experience has also shown me that this foam thickness is useful for durability. It helps absorb pressure better, which means it can last longer in daily use and maintain its shape more effectively. For projects where I want both comfort and reliability, 1 1/2 inch foam is often the best choice.

I also like that it works well in many different applications. Whether I’m replacing a cushion, improving a bench, or adding padding for a custom project, this foam thickness gives me a practical solution that feels comfortable and performs well.

My Buying Guides on 1 1 2 Inch Foam

What I Look For in 1 1/2 Inch Foam

When I shop for 1 1/2 inch foam, I first think about what I need it for. I look at whether I want it for cushions, upholstery, packing, soundproofing, or a craft project. The right foam depends on the job, so I always start by matching the foam type to my purpose.

Foam Density Matters to Me

One of the biggest things I pay attention to is foam density. Higher density foam usually feels firmer and lasts longer, while lower density foam feels softer and is often more affordable. If I want something that will hold up over time, I usually choose a denser option.

Firmness Is Important

I also check how firm the foam is. Some 1 1/2 inch foam is soft and plush, while others are more supportive. For seating or padding, I prefer a firmness level that gives comfort without flattening too quickly. For crafts or packaging, I may choose a firmer foam for better shape retention.

Material Type I Consider

There are different foam materials, and I always compare them before buying. Common types include polyurethane foam, memory foam, EVA foam, and closed-cell foam. Each one has its own feel and use. For example, I like memory foam for comfort, but I may choose EVA foam when I need durability and moisture resistance.

Size and Cut Options

I make sure the foam comes in the right dimensions for my project. Even though the thickness is 1 1/2 inch, I still check the length and width carefully. Sometimes I buy a larger sheet and cut it myself, and other times I prefer pre-cut pieces to save time.

Durability and Longevity

I always think about how long the foam will last. If I am using it in a high-traffic area or for frequent use, I want foam that resists sagging and breaking down. A good-quality foam may cost more, but I find it worth it when I need long-term performance.

Comfort and Support

If I am buying foam for cushions, chairs, or bedding support, comfort is a top priority. I test whether the foam feels too hard or too soft for my needs. I want a balance of support and comfort so the foam works well over time.

Moisture and Temperature Resistance

For some uses, I look for foam that can handle moisture, heat, or cold. Closed-cell foam is often a better choice when I need water resistance. If I plan to use the foam outdoors or in a damp space, I make sure it can stand up to the environment.

Easy to Cut and Shape

I prefer foam that is easy to work with. If I need to trim it, carve it, or shape it, I look for foam that cuts cleanly with a utility knife or electric foam cutter. This makes my project easier and gives me better results.

Price and Value

I compare prices, but I do not choose based on cost alone. I try to find the best value by balancing price, quality, and durability. Sometimes a slightly more expensive foam saves me money later because it lasts longer and performs better.

My Final Tip Before Buying

Before I make my final purchase, I always read product descriptions and reviews carefully. I pay attention to thickness, density, firmness, and intended use. When I match those details to my project, I usually end up with foam that works exactly the way I need it to.

Final Thoughts

I’ve found that 1 1/2 inch foam is a versatile choice that offers a solid balance of comfort, support, and practicality for many projects. My key takeaway is that it works especially well when you need a medium-thickness foam that can adapt to different uses without feeling too bulky. Overall, I think it’s a reliable option worth considering if you want a simple, effective foam solution.

Author Profile

Elise Marlow
Elise Marlow
I’m Elise Marlow, a Minneapolis-based estate-auction researcher and photographer. Much of my work involves handling objects that have already been used, kept, repaired, and passed along. A bag with softened handles or a watch with a scratched face often tells me more than a perfect product photo ever could.

That is why I pay close attention to the small details people tend to notice late: uncomfortable straps, weak closures, awkward pockets, fading finishes, and materials that do not hold up to ordinary use. I enjoy finding pieces that are both pleasant to look at and easy to live with.

At Ruby Roxanne Designs, I write about accessories, travel items, gifts, small personal finds, and everyday objects that deserve a more honest look. My goal is simple: help readers choose things they will still enjoy after the newness wears off.