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Replacing a Threshold

Project Overview

Replacing a Threshold

Thresholds are an important part of the entry to your home. Their primary function is to keep warm air in and cold air out (or vice versa in the summer.) It is always a good idea to purchase a high-quality, durable threshold seen as it will likely endure a lot of traffic.

3 Steps

  1. Remove Existing Threshold
  2. Measure Threshold and Lay Caulk
  3. Insert Screws
Remove Existing Threshold

Step 1

Remove Existing Threshold

Begin by removing your existing threshold from your door. You'll want to first cut the old threshold with a back saw. Then you can dislodge it with a pry bar. Once it is removed, clean the area thoroughly.

Measure Threshold and Lay Caulk

Step 2

Measure Threshold and Lay Caulk

Carefully measure the opening for the new threshold, and cut to fit. Next, lay a bead of caulk along what will be the back edge of the threshold. Now position it as you want it, making certain the angle is sloping slightly away from your home so water does not build up near your new threshold.

Insert Screws

Step 3

Insert Screws

Insert the screws in the holes indicated along the length of the threshold. Finally, test the fit. If it is too tight, you can plane down the door or lower the threshold.

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Project Details

Skill Level: Beginner

Time: 1 hour

Before you start, read this »

Due to differing conditions, tools, and individual skills, The Home Depot® assumes no responsibility for any damages, injuries suffered, or losses incurred as a result of attempting to replicate any of the home improvement ideas portrayed in this website Before beginning any home improvement project, review it thoroughly to ensure you or your contractor can finish the project and if any doubts or questions remain, consult local experts or authorities. Because codes and regulations vary greatly, you always should check with authorities to ensure that your project complies with all applicable local codes and regulations. Always read and observe all of the safety precautions provided by any tool or equipment manufacturer, and follow all accepted safety procedures.


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