How to make a soap cutter

Soap making is a popular hobby for many people and requires precision and attention to detail to create high-quality products. One of the essential tools for soap making is a soap cutter. A soap cutter allows you to evenly slice your soap into uniform bars, which not only improves the appearance of your soap but also helps to extend its shelf life. In this guide, we will discuss the steps to make a soap cutter that will help you achieve professional results.

How to make a soap cutter

Materials Needed

  • 2 pieces of wood (preferably hardwood) approximately 16 inches long, 2 inches wide, and 1 inch thick
  • 4 screws
  • 4 wingnuts
  • 4 washers
  • 1 ruler
  • 1 saw
  • 1 drill
  • 1 screwdriver
  • Sandpaper

Step 1: Cut the Pieces of Wood

Take your two pieces of wood and cut them to the desired length using a saw. For this guide, we will be using pieces that are 16 inches long.

Step 2: Sand the Edges

Once the pieces are cut to size, use sandpaper to smooth out any rough edges. This step is important to prevent any accidental injuries when using the soap cutter.

Step 3: Drill Holes

Use a drill to create four holes, two in each piece of wood. The holes should be spaced evenly apart, approximately 4 inches from each end and 1 inch from the edges.

Step 4: Attach the Hardware

Take the screws, wingnuts, and washers and attach them to the pieces of wood. Place a washer on each screw, then insert the screw through one of the holes in one of the pieces of wood. Next, place the other piece of wood on top, aligning the holes. Finally, attach a wingnut to the end of each screw and tighten until the pieces of wood are securely fastened together.

Step 5: Measure and Mark

Use a ruler to measure and mark the center of the soap cutter. This will help you to accurately cut your soap in half.

Step 6: Test Your Soap Cutter

It’s now time to test your soap cutter. Place a bar of soap on the cutter and apply gentle pressure to make the cut. If the soap cutter is working correctly, the soap should cut evenly and smoothly.

Frequently Asked Questions

Q: Can I use any type of wood for this project?

A: It is recommended to use hardwood for this project as it is durable and will last longer. However, if hardwood is not available, you can use another type of wood, but it may not last as long.

Q: Can I use a different type of screw or hardware?

A: Yes, as long as the hardware you use is sturdy and will hold the two pieces of wood together securely, you can use any type of screw or hardware you like.

Q: Can I make the soap cutter longer or shorter?

A: Yes, you can make the soap cutter any length you like, just make sure to adjust the placement of the holes and hardware accordingly.

Q: Can I use a different type of saw for cutting the wood?

A: Yes, you can use any type of saw that is capable of cutting the wood to the desired length.

Q: Can I make the soap cutter with a different number of holes?

A: Yes, you can make the soap cutter with more or fewer holes, just make sure to adjust the placement of the hardware accordingly.

Q: How do I properly clean and maintain my soap cutter?

A: To clean and maintain your soap cutter, simply wipe it down with a damp cloth after each use and store it in a dry place. Sanding down any rough edges or areas on the cutter periodically can also help to extend its lifespan.


Making a soap cutter is an easy and affordable way to improve your soap-making process. With just a few simple materials and steps, you can create a soap cutter that will help you achieve professional results. By following this guide, you can make a soap cutter that will last for years to come.

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