How To Build An Exterior Sliding Barn Door

How to Build a Sliding Barn Door Learn how to
How to Build a Sliding Barn Door Learn how to from


If you’re looking to add a rustic and charming touch to your home’s exterior, building an exterior sliding barn door is a perfect project. Not only does it enhance the aesthetic appeal of your property, but it also offers practical benefits such as improved security and weather protection. In this article, we will guide you through the step-by-step process of building your own exterior sliding barn door.

Gather Materials

The first step is to gather all the necessary materials. You will need:

  • Pressure-treated lumber for the frame
  • Exterior-grade plywood for the panels
  • Barn door hardware kit
  • Wood glue
  • Deck screws
  • Paint or stain
  • Paintbrushes and rollers
  • Measuring tape
  • Saw
  • Drill

Measure and Cut the Frame

Start by measuring the dimensions of your doorway. Use a saw to cut the pressure-treated lumber according to these measurements. You will need two vertical pieces and two horizontal pieces for the frame. Make sure the corners are square by using a carpenter’s square.

Assemble the Frame

Apply wood glue to the ends of the horizontal pieces and attach them to the vertical pieces to form the frame. Use deck screws to secure the joints. Reinforce the corners with corner brackets for added stability.

Attach the Panels

Measure the dimensions for the plywood panels and cut them accordingly. Apply wood glue to the back of each panel and attach them to the frame using deck screws. Make sure the panels are evenly spaced and flush with the frame.

Finish the Door

Sand the entire door to smooth out any rough edges or imperfections. Apply a coat of paint or stain of your choice to protect the wood from moisture and UV damage. Allow the paint or stain to dry completely before proceeding.

Install the Barn Door Hardware

Follow the instructions provided with the barn door hardware kit to install the tracks and rollers onto the door. Make sure the hardware is securely attached to the door and the wall. Test the sliding motion to ensure smooth operation.

Hang the Door

With the help of a friend, lift the door and place it onto the tracks. Adjust the rollers to ensure the door is level and properly aligned. Test the sliding motion again to make sure everything is functioning correctly.

Final Touches

Install a door guide at the bottom to prevent the door from swinging back and forth. Add any additional hardware or accessories, such as handles or decorative elements, to personalize your sliding barn door.


Building an exterior sliding barn door is a rewarding DIY project that can add character and functionality to your home. With the right materials and careful execution, you can create a beautiful and durable door that will impress your guests and stand the test of time.