Our Pre-Cut Foam Squares - Various sizes are available in a range of sizes and are made up from our Upholstery Grade foam to meet your upholstery, crafting, and cushioning needs. These sizes are in thickness groups from 25mm, 50mm, 75mm. Great for replacement foam in chairs and cushions. Available in a variety of pre-cut sizes - May be a variation in size by 1-2 mm due to cutting. Normal upholstery foam for comfort and flexibility (A - G) Available Sizes: 25A: 250 x 250 50A: 250 x 250 75A: 250 x 250 25B: 300 x 350 50B: 300 x 350 75B: 300 x 350 25BB: 350 x 350 50BB: 350 x 350 75BB: 350 x 350 25C: 350 x 400 50C: 350 x 400 - 75C: 350 x 400 25D: 400 x 400 50D: 400 x 400 - 75D: 400 x 400 25E: 450 x 450 50E: 450 x 450 75E: 450 x 450 25F: 500 x 500 50F: 500 x 500 75F: 500 x 500 25G: 550 x 550 50G: 550 x 550 75G: 550 x 550