upholstery foam 30x84
A sheet of upholstery foam 30x84 is one of the most versatile sizes you can keep on hand for home sewing projects. Its long, generous shape fits many window seats, benches, daybeds and banquettes with little waste, and it trims easily for smaller cushions.
Why Choose a 30 x 84 Foam Sheet?
This size covers a lot of ground in a single piece, so you can make one seamless cushion instead of piecing smaller sections together. That means a smoother look under your fabric and a more comfortable seat.
Popular Projects
- Bench and window seat cushions
- Daybed and twin-size mattress toppers
- Banquette and breakfast nook seating
- Outdoor and porch cushions (with a suitable cover)
What to Look For in Cushion Foam
Thickness shapes the comfort and look of a cushion; thicker foam feels plusher, while thinner sheets suit backrests and pads. Density and firmness affect support and durability, and high density upholstery foam is a smart choice for seats used every day. Consider wrapping foam in batting for softer, rounder edges.
Find Your Foam
Ready to start your next cushion? Browse our upholstery foam selection below and pick the thickness and firmness that fit your project.