Replacing a door threshold is a valuable skill for home improvements that can save on energy costs and enhance the durability of your entryways. Properly installed thresholds help seal gaps, keeping drafts out and maintaining a comfortable indoor temperature. Follow this guide to learn how to replace both interior and exterior thresholds in a few straightforward steps.
What is an Interior Door Threshold?
Interior door thresholds, also known as transition strips, bridge the gap between different types of flooring, providing a smooth transition and protecting floor edges. They serve both practical and decorative purposes, coming in materials like wood, aluminum, plastic, and even stone, depending on the style of the room.
Materials Commonly Used for Interior Thresholds
Interior thresholds are typically made from wood or aluminum, as these materials are cost-effective and versatile. You may also find options in plastic or marble for different aesthetic needs. The material you choose depends on the specific requirements of your space and the level of foot traffic it will endure.
How Challenging is it to Replace a Door Threshold?
Replacing a door threshold is a relatively straightforward project that takes about 2-5 hours, depending on your experience and tools on hand. With the right instructions, this is a DIY-friendly task that can be completed in an afternoon.
Steps to Replace an Interior Door Threshold
Step 1: Removing the Old Interior Threshold
To start, remove the existing threshold. Use a pry bar and hammer to lift the threshold, carefully targeting the nails or screws securing it in place. If the threshold is tightly wedged or you need more leverage, you may need to cut it into two parts with a handsaw, which will make removal easier.
Step 2: Measuring for the New Threshold
Measure the width of the doorway from one edge of the casing to the other. It’s best to cut the new threshold slightly longer than necessary (around 2-3 extra inches) to allow for adjustments. Mark the threshold with precise measurements and create notches at the ends to fit around the door jambs for a secure fit.
Step 3: Cutting and Fitting the New Threshold
Using a jigsaw, carefully cut along your markings to shape the new threshold. For precise angles, use a carpenter’s square. Once you’ve cut the threshold, check its fit by placing it in the doorway and making any adjustments needed.
Step 4: Securing the New Interior Threshold
Position the threshold under the door stops and tap it gently with a rubber mallet. For wood or aluminum thresholds, drill pilot holes, and secure the threshold with nails or countersunk screws. If your threshold is made of marble or tile, you’ll need a strong adhesive for secure bonding. Choose an adhesive specifically designed for thresholds, and apply it carefully for a strong, lasting hold.
Replacing an Exterior Door Threshold
Step 1: Removing the Old Exterior Threshold
When replacing an exterior threshold, start by using a reciprocating saw to cut through the old one without damaging surrounding floorboards. Once you’ve cut it, use a pry bar to lift each piece carefully. Clear away any old caulk and debris to prepare the area for the new threshold.
Step 2: Measuring and Preparing the New Exterior Threshold
Just as with the interior threshold, measure the width of the door opening. Double-check that the door will close smoothly over the threshold once it’s in place. If necessary, shave a small amount off the bottom of the door to ensure a comfortable fit.
Step 3: Installing the New Exterior Threshold
Place a line of exterior-grade caulk along the back edge of the threshold. Position the threshold so it slides under the door stops, with the notches fitting around the jambs. Tap it into place gently with a mallet, making sure there’s a slight outward slope to allow rainwater to drain away from the door.
If your threshold requires screws, insert them through the pre-drilled holes and secure with a power drill. If it doesn’t need screws, use construction adhesive to fix the threshold firmly to the floor. Once the threshold is in place, apply a bead of caulk between the threshold and the door stops to create a weather-resistant seal.
Finding the Right Threshold for Your Project
With your new skills, you can now confidently replace interior and exterior door thresholds. Browse a wide selection of materials and styles to find the perfect fit for your home. By replacing your thresholds, you’ll enhance both the comfort and aesthetics of your living space, making it more energy-efficient and inviting.
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