How to Cut Foam Rubber With an Electric Knife

You can cut a piece of foam rubber exactly the size you need for your project.

Foam rubber is the cushiony material found in mattresses, pillows and seat cushions. Sewing centers and craft shops often carry pre-cut pieces of foam rubber in standard sizes for stuffing pillows and reupholstering furniture. If you need a non-standard sized foam for your project, you can cut one yourself, using a serrated kitchen knife.

Things You'll Need

• Ruler
• Cooking spray
• Thin-line marker

Instructions

1. Measure your project for the exact size the foam piece needs to be. If you are using a thick material or batting to cover the foam for your project, factor the thickness of the batting or material when deciding where to place your cutting lines on the foam.

2. Lubricate the knife with the cooking spray. According to the book, "Upholstery Techniques Illustrated," lubrication will make it easier for the blade to smoothly cut the foam.

3. Mark your cutting line on the foam rubber using the ruler and marker. Cut along the marked lines using the electric knife.

Tips & Warnings

• Once the knife is thoroughly cleaned it is safe to use for cutting food.

References

• Thrifty Fun: Cutting Foam For Crafts
• Google Books: Upholstery Techniques Illustrated, Volume 349: Page 20
• Penny Pinching Grandma: RE-UPHOLSTER It MADE EASY