How to Use a Biscuit Joiner: A Comprehensive Guide in 2023

how to use a biscuit joiner

How to Use a Biscuit Joiner – If you’re passionate about woodworking, whether as a DIY enthusiast, a beginner carpenter, or a home improvement hobbyist, you’re in the right place. In this post, we’re going to delve into the world of biscuit joiners – a gem of a tool that can elevate your woodworking skills. Let’s get started!

Introduction – How to Use a Biscuit Joiner

A biscuit joiner, also known as a plate joiner, is a power tool used to make accurate and strong joints in woodwork. It cuts narrow slots into the edges of wood pieces, into which thin, oval-shaped, wooden “biscuits” are placed with adhesive to create a bond between the pieces. This method is perfect for edge-to-edge, corner, and T-joints in solid wood, plywood, and particle board.

Safety Measures

Working with power tools requires caution. Here are some safety measures to keep in mind:

  • Always wear protective gear: Safety glasses and ear protection are a must while operating a biscuit joiner.
  • Secure your workpiece: Use clamps to ensure the piece you’re working on is stable and secure.
  • Handle the joiner properly: Always hold the joiner with both hands and keep your fingers away from the blade.

Step-by-Step Guide

1. Preparation

Preparation is key to a successful woodworking project.

  • Select the right biscuit size: Biscuits come in sizes 0, 10, and 20. Choose the size that best fits your project.
  • Mark the workpieces: Mark the positions where you’ll make the cuts on both pieces to avoid any misalignment.
  • Adjust the joiner: Set the correct depth and angle on your biscuit joiner according to the biscuit size and type of joint.

2. Making the Cuts

Now, let’s cut the slots for the biscuits.

  • Align the joiner: Line up the center mark on the biscuit joiner with the mark on the workpiece.
  • Hold the joiner: Grip the tool firmly and make sure it’s flat against the workpiece before starting the cut.
  • Make the cut: Push the joiner forward steadily to make the plunge cut. Repeat the process for all the marked positions.

3. Joining the Workpieces

This is where the magic happens.

  • Apply glue: Apply wood glue into the slots on both pieces and spread it evenly.
  • Insert the biscuits: Place the biscuits into the slots. They should fit snugly.
  • Align and clamp: Bring the two pieces together, align them perfectly, and clamp them until the glue dries.

Tips and Tricks for Best Results

Here are some extra tips and tricks for achieving the best results:

  • Choose the right wood and biscuits: Hardwood or plywood works best, and always ensure the biscuits are of the appropriate size.
  • Maintain a steady pace and pressure: Over-aggressive or too-slow cuts can lead to inaccuracies.
  • Ensure proper alignment: Double-check your alignment marks before making the cuts.
  • Deal with common challenges: If you find the biscuits fitting too tightly, sand them down a bit. If they’re too loose, you can add some sawdust into the glue.

Maintenance and Care

Take care of your joiner, and it will take care of your projects.

  • Clean after use: Remove dust and debris from the joiner after each use.
  • Lubricate: Keep the moving parts lubricated for smooth operation.
  • Store properly: Store the joiner in a dry and safe place to prevent rust and damage.

Guide Through Video


There you have it, a comprehensive guide on how to use a biscuit joiner. With this tool, you’re now equipped to create strong, precise, and professional-looking joints for your woodworking projects. Remember, like any other skill, mastering the biscuit joiner will take practice. But with each project, you’ll find your confidence and proficiency growing. So, go ahead, get those wood pieces, fire up your biscuit joiner, and let the sawdust fly! Happy woodworking!

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