Build a Strong and Simple Plywood Step Stool

This fantastic step stool design was created by John McGrath from Man In Shed. It’s a perfect project for beginners and can be completed in just one day!

Materials Needed:

  • 3/4″ (18mm) Birch Plywood
  • Wood Glue
  • Danish Oil (for finishing)

Tools Required:

  • Track Saw
  • Router
  • Hand Tools (optional)
  • Clamps
  • Sander

Step 1: Sketch Your Design

Start by sketching out your design. A simple drawing with dimensions will help guide your cuts. For this stool, the dimensions are:

  • Height: 400 mm (16 inches)
  • Width: 600 mm (24 inches)
  • Top Step: 200 mm (8 inches)
  • Bottom Step: 300 mm (12 inches)

Keep your design simple; remember, it’s just a step stool!

Sketch of the step stool design

Step 2: Prepare the Plywood

Before you start cutting, check your plywood for square edges. Use a track saw to create a straight edge if necessary. This will serve as your reference edge for all subsequent cuts.

Cutting the plywood to create a straight edge

Step 3: Cut the Main Components

Cut out the side pieces for the frame and the steps. Make sure both sides are identical to ensure stability. After cutting, check to make sure all corners are at a perfect 90 degrees.

Cutting the side panels for the step stool

Step 4: Create Joinery Cuts

For added strength, you’ll want to cut dados into the frame where the steps will fit. This provides additional support and stability. Mark the locations for the dados and use a router to achieve the desired depth and width.

Routing the dados for the step stool

Step 5: Assemble the Frame

With all your pieces cut and dados routed, it’s time to assemble the frame. Fit the steps into the dados and add cross braces for extra support. Check the fit before applying glue.

Assembling the frame with cross braces

Step 6: Add Finishing Touches

Before gluing everything together, consider adding some decorative touches. Round off sharp edges and add chamfers to the cross braces for a smoother appearance. Once you’re satisfied, apply wood glue to all joints and clamp them securely.

Applying glue and clamping the frame together

Step 7: Sand and Finish

After the glue has set, remove the clamps and sand the entire stool to a smooth finish. Apply a coat of Danish oil to enhance the wood grain and protect the surface.

Sanding the step stool after assembly

Step 8: Final Inspection

Check the stability of your step stool. It should be able to support your weight (up to 200 pounds or 90 kilos) comfortably. It’s now ready for use!

Finished step stool ready for use

This step stool is not only functional but also a great addition to any home. Whether it’s for your child to reach the kitchen counter or for adults needing a boost, it’s a reliable and sturdy piece.

Video

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