Build a Simple Bookshelf from Stair Treads

In this guide, the team from This Old House demonstrates how to make a simple yet elegant bookshelf using stair treads. This project is perfect for those looking to create a sturdy and stylish addition to their home without the need for complex tools or materials.

Materials and Tools Needed

  • Materials:
    • Stair treads (54 inches long, made of pine)
    • 1/4 inch Luan plywood for the back
    • 3 1/8 inch trim head screws
    • 5d box nails
    • Wood glue (optional)
  • Tools:
    • Circular saw
    • Drill/driver
    • Hand plane
    • Chisel
    • Clamps
    • Straight edge
    • Utility knife
    • Square

Step 1: Prepare the Stair Treads

The project begins with the stair treads, which will serve as the main material for the bookshelf. The first task is to leave the treads at their full length of 48 inches for the sides of the bookshelf.

Stair treads ready for use

Step 2: Cut the Shelves

Next, cut the shelves to the desired length. For this project, a height of 40 inches is suggested, but the treads can remain at their original length if preferred. The shelves will need to be ripped down by 1 ½ inches in width, and the sides will also need to be adjusted by ¾ of an inch to ensure a clean joint.

Measuring and cutting the shelves

Step 3: Create the Back of the Bookshelf

For the back of the bookshelf, use a quarter inch piece of Luan plywood. This material is stronger than cardboard and will provide stability to the bookshelf. To hide the end grain of the plywood, a rabbet cut is necessary on each side.

Cutting the back panel for the bookshelf

Step 4: Assemble the Shelves

With the cuts made, it’s time to begin assembly. Mark the positions for the shelves, ensuring they are spaced 16 inches apart. Pre-drill holes for the screws to ensure a strong connection between the shelves and the sides.

Marking and pre-drilling holes for shelves

Step 5: Attach the Toe Kick

Before standing the bookshelf upright, install a toe kick using scrap pieces of the stair treads. This adds a finished look to the bottom of the bookshelf.

Attaching the toe kick to the bookshelf

Step 6: Round the Edges

To enhance the aesthetic, round over the edges of the top piece to match the bullnose of the stair treads. This can be achieved using a hand plane, following the drawn lines carefully to ensure a smooth curve.

Rounding over the edges of the bookshelf

Step 7: Final Assembly and Finishing Touches

With everything in place, nail the back onto the bookshelf using 5 penny box nails. Finally, sand down the entire bookshelf, prime it, fill any holes, and apply a coat of paint to finish the look.

Completed bookshelf ready for finishing

Conclusion

With a total cost of around $100 and a completion time of 3-4 hours, this bookshelf project is not only practical but also an enjoyable woodworking experience. The use of stair treads not only simplifies the process but also provides a robust and attractive end product.

Video

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