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Foamma USA

RV Precut Replacement Mattress Foam

RV Precut Replacement Mattress Foam

  • Choose your precut size, firmness & thickness. If you are having troubles or need help, please call us!
  • Choose your firmness, thickness, width, and length, then add optional memory foam. For irregular shapes, select the custom-shape option and upload your desired shape, or call us to ensure everything is correct.
$44.99 USD
$44.99 USD
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Shipping calculated at checkout.

RV REPLACEMENT FOAM (FOAM ONLY)

Upgrade or refresh your mattress with high-grade, precut replacement foam engineered specifically for RVs, campers, trucks, and custom bedding setups. Delivered as bare foam (no cover included), making it easy to slip directly into your existing mattress cover or custom casing.

PRECUT & CUSTOMIZABLE DIMENSIONS Precut to your exact specifications in 1-inch increments:

  • Thickness: 2 to 12 inches

  • Width: 18 to 84 inches

  • Length: 48 to 96 inches (Note: Standard manufacturing size tolerances of 0.25 to 3 inches may occur, and foam core color may vary.)

LUXURIOUSLY COMFORTABLE FOAM Engineered with a high-grade polyurethane foam base that delivers long-lasting, resilient support. Please allow up to 72 hours for the foam to fully expand after unboxing.

MATTRESS FIRMNESS OPTIONS Select your support and feel directly from the options above:

  • Medium Firm with 1" Memory Foam: Combines a supportive foam core with a 1-inch gel memory foam top layer that relieves pressure points, contours to your body, and helps regulate sleep temperature throughout the night.

  • Firm: A high-density polyurethane foam core engineered for maximum structural support and lasting alignment.

  • Plush: A soft, cushioned foam feel designed for a cloud-like sleep surface.

CERTIPUR-US® CERTIFIED & MADE IN THE USA Proudly manufactured in the USA. Our foam is CertiPUR-US® certified, guaranteeing it is made without ozone depleters, mercury, lead, heavy metals, or regulated phthalates, while maintaining low VOC emissions for clean indoor air quality.

VERSATILE MULTI-PURPOSE DESIGN Built for durability and adaptable support, our replacement foam cores and pads are perfect for:

  • RV bunks, semi-truck sleepers, campers, and boat cushions

  • Replacing worn mattress cores, daybeds, cots, and guest room beds

  • Custom home furniture, window seats, and DIY upholstery projects

EASY ORDERING & CUSTOM SHAPES Select your exact precut dimensions and Mattress Firmness option directly at checkout. Need a specialized cut? Contact us for custom shapes, including round, oval, trapezoid, hexagon, octagon, star, heart, triangle, and more.

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How to Measure your Replacement Foam

Why FoammaUSA's Replacement Foam Upgrade

  • CertiPUR-US® Certified: Low-VOC foam made without heavy metals, ozone depleters, or toxic flame retardants.
  • Made to Fit Your Space
    Custom-cut foam is tailored to your exact size and shape, making it ideal for cushions, mattresses, RVs, boats, window seats, benches, and hard-to-fit areas.
  • Restore Comfort Without Replacing Everything with our Replacement Foam
    Refresh sagging cushions, worn seats, or firm surfaces with new support — without buying a completely new piece of furniture or mattress.
  • Choose the Feel You Want
    Select from different foam firmness options, and add memory foam for extra pressure relief, contouring comfort, and a softer sleep or seating surface.
  • Available sizing:
    24" x 72", 28" x 72", 28" x 75", 28" x 79", 30" x 72", 30" x 75", 30" x 80", 32" x 75", 34" x 75", 35" x 79", 36" x 72", 36" x 75", 36" x 76", 38" x 75", 38" x 80", 39" x 75", 42" x 80", 48" x 70", 48" x 75", 48" x 80", 53" x 75", 53" x 80", 60" x 75", 60" x 80", 72" x 75", 72" x 78", 72" x 80", 76" x 80"

What foam firmness is right for you:

  • Firm Foam

    Sleep on your back or stomach.

    Prefer a firm sleeping surface.

    Need a durable foam for daily, long-term use.

  • Medium Firm Foam

    Sleep mostly on your side.

    Like soft, gentle cushioning.

    Need a cozy but not too plush surface.

  • Plush Foam

    Love a soft, “cloud-like” feel. Want to add plush comfort to a firmer foam. Prefer a cozy, sink-in surface for reading, napping, or relaxing.'

Quality You Can Rely On With Our 10 Year Limited Warranty

When you invest in our foam products, you aren’t just buying materials—you’re investing in long-lasting comfort, structural support, and durability. Whether it’s a specialized mattress navigating the open road, high-resilience cushions for a boat, or precision-cut foam for a unique home project, our10-Year Limited Warrantyis our promise that your product is built to go the distance.

Return & Refund Policy