For the product Misc Vendor AAA-135, which is described as 0.5" x 4" x 10' Homasote, it seems that you're looking for a piece with different dimensions: 4' x 5". Here’s how you can approach this: Custom Cut Inquiry: You may need to reach out to the vendor or manufacturer directly to ask if they can provide custom cuts. Some suppliers or vendors can cut materials to specified dimensions, depending on availability. Search for Homasote Sheets: If custom cutting isn't an option, you can look for full sheets of Homasote that match your width and length requirements. Standard Homasote sheets usually come in larger dimensions (e.g., 4' x 8'), so you can cut them to the size you need. Home Improvement Stores: Retailers like Home Depot, Lowe's, or a local building supply store might carry Homasote and may be able to cut it to your specified size. It's worth checking their custom cutting services.