Discover durable, high-density foams suitable for outdoor seating, cushions, and replacements. This guide reviews five top options, focusing on density, ILD, thickness, and outdoor resilience. Each product is evaluated for support, longevity, and suitability for DIY cushions, with practical notes for cutting and installation.
Product Overview
| Product | Dimensions | Density / ILD | Key Benefit |
|---|---|---|---|
| GoTo Foam 1″ x 24″ x 72″ | 1″ x 24″ x 72″ | 1.79 density | 44 ILD | Firm, USA-made upholstery cushion |
| GoTo Foam 2″ x 24″ x 72″ | 2″ x 24″ x 72″ | 1.8 density | 44 ILD | Balanced support for outdoor seating |
| Foamma 4″ x 24″ x 24″ | 4″ x 24″ x 24″ | 1.8 density | 44 lb compression | Long-lasting square outdoor cushions |
| FoamTouch 3″ x 24″ x 72″ | 3″ x 24″ x 72″ | Unknown density (high) | 45 ILD | Strong, durable for cushions and benches |
| FOAMYFOAM High Density 5″ x 24″ x 24″ | 5″ x 24″ x 24″ | 1.8 density | 44 ILD | Heavy-duty cushion replacement |
GoTo Foam 1-Inch Outdoor Upholstery Cushion

This GoTo Foam option is a 1″ thick, 24″ wide by 72″ long cushion made in the USA with CertiPUR certification. It delivers firm support suitable for lightweight outdoor seating and pillow reinforcements. With a 44ILD rating, it maintains shape under frequent use while offering a compact profile for tight outdoor furniture. Ideal for DIY cushions or replacing worn pieces in modular outdoor sets.
GoTo Foam 2-Inch Outdoor Upholstery Foam Sheet

This 2″ thick foam sheet provides a balanced level of support with a 1.8 density and 44 ILD. It’s designed for seat cushions, bench padding, and DIY projects where sturdier structure is needed. The charcoal foam is noted for stain and impact resistance, enabling longer durability in outdoor environments. It easily cuts with standard tools and yields professional results for upholstery or cosplay projects used outdoors.
Foamma 4-Inch Outdoor Cushion Replacement

Foamma offers a 4″ outdoor foam cushion, designed for square furniture cushions and deep seating. With durable high-density construction and a 1.8 density, the foam provides substantial support and a 44 lb compression, suitable for long-lasting outdoor use. The manufacturer also offers custom cuts—great for bespoke patio furniture, swings, and garden seating that demands resilience and shape retention in sunlight and humidity.
FoamTouch 1-Inch Charcoal High-Density Foam

FoamTouch’s 1″ thick charcoal foam highlights easy cut-ability and versatile use for cushioning and packaging. It features a shock-absorbent profile ideal for lightweight outdoor cushions and occasional seating, with stain and impact resistance to sustain outdoor exposure. While thinner, it can layer with a thicker core for a customized, compact outdoor cushion that remains manageable during assembly and installation.
GoTo Foam 3-Inch Upholstery Cushion

This GoTo Foam cushion measures 3″ thick and 24″ wide by 72″ long, combining substantial depth with firm support. Certified in the USA and featuring Certipur certification, it is designed for longer-lasting outdoor comfort, with a 7 to 10-year lifespan depending on use. It is suitable for heavier outdoor seating, sectionals, and lounge configurations where thicker cushions are desired for prolonged comfort.
FoamTouch 3-Inch White Upholstery Foam

FoamTouch’s 3″ thick foam provides a higher-density option for rounded or oval outdoor cushions, with a 3″ thickness that pairs well with boat, furniture, and patio cushions. The product notes a 100% recovery rate and fire retardant properties, making it suitable for environments where cushion resilience and safety standards are important. It supports shapes tailored to chairs, tables, and deck seating, maintaining form after repeated use outdoors.
FOAMYFOAM High Density 5-Inch Foam

FOAMYFOAM offers a 5″ thick high-density foam, ideal for heavy-duty outdoor cushions such as deep seating and bench replacements. With 1.8 density and 44 ILD, these cushions deliver robust support suitable for outdoor furniture that sees frequent use and weather exposure. The brand notes customizable sizing and shapes, enabling exact fits for porch swings, lounge chairs, and large patio furniture configurations.
Buying Guide: Key Purchase Considerations
- <strongDensity and ILD: Higher density and ILD provide firmer support and longer wear. For outdoor furniture, aim for densities around 1.8 and ILD in the 44–45 range for durable cushions that resist compression from daily use.
- <strongThickness: Thicker cushions (3″–5″) offer superior comfort and resilience against fatigue. For outdoor lounges and deep seating, 4″–5″ is often preferable; for slim chairs, 1″–2″ may suffice.
- <strongOutdoor durability: Look for cushions made with weather-resistant cores and UV-stable covers or cores. Some foams are treated for moisture resistance and stain resistance, which extend life in sunlit patios and poolside areas.
- <strongCutting and customization: If your furniture is non-standard, choose foams that are easy to cut and offer custom-cut services to fit shapes like squares, rounds, or benches.
- <strongRepair vs. replacement: For worn seats, replacement cushions with matching dimensions ensure a consistent look. For modular sets, consider multi-size options to refresh several pieces at once.
- <strongInstallation and cover compatibility: Ensure your cushion covers can accommodate the foam thickness and have closures or zippers that work with the new cushions.
- <strongCertification and safety: Certipur or similar certifications indicate adhesives and foams meet safety standards, reducing emissions and improving indoor-outdoor air quality around seating.
- <strongLongevity expectations: Outdoor foam can last 5–10 years with proper care. Durability depends on climate, sun exposure, and maintenance such as cleaning and protective covers.
- <strongEnvironment and use case: Heavier-use decks may require stiffer foams, while casual patio sets may prioritize comfort and softness with balanced densities.