Quck answer
To install an exterior door threshold on a concrete slab floor, follow these steps:
1. Measure and mark the location where the threshold will be installed.
2. Use a hammer drill to create holes in the concrete slab at the marked locations.
3. Insert plastic anchors into the drilled holes.
4. Place the threshold on top of the plastic anchors and align it with the doorway.
5. Drill pilot holes through the threshold into the concrete slab.
6. Insert screws into the pilot holes and tighten them to secure the threshold in place.
7. Use a level to ensure the threshold is even and adjust if necessary.
8. Apply caulking around the edges of the threshold to seal it.
9. Allow the caulking to dry completely before using the door.
By following these steps, you can successfully install an exterior door threshold on a concrete slab floor.
Thresholds are used as a transition between the flooring and doorway, commonly found in bathrooms and bedrooms. They can be attached to the floor using adhesive or screws, with adhesive being the preferred option to avoid damaging the concrete. They are smooth, affordable, and easy to install.
How to Install an Exterior Door Threshold on a Concrete Slab Floor
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artursfoto/iStock/GettyImages
Marble Threshold
Start by purchasing a marble threshold of the appropriate width and length. If needed, you can trim the threshold to the desired size. You will also need Liquid Nails subfloor adhesive, caulk, and touch-up paint for the door jam. Clean the work area and remove any debris from the concrete slab. Trim any loose frayed material from the carpet if present. Test the threshold for fit and apply Liquid Nails glue to the concrete. Attach the threshold and restore the door jamb, using caulk to ensure a proper fit. Touch up the door jamb with matching paint if necessary.
Wood Threshold
For a wood threshold, ensure that the door will bisect the centerline of the threshold when closed. Apply adhesive and secure the threshold to the floor using screws. Note that adhesive is recommended for concrete to avoid floor damage.
Using Adhesive
While Liquid Nails adhesive is commonly recommended, there are other adhesives available. Contact adhesive requires precise positioning of the surfaces, while others allow for repositioning before setting. Make sure to use the correct adhesive for the surface material, considering stains or varnish on a wood threshold.
Using Screws & Fasteners
If adhesive is not used, you can secure the threshold with wire nails. Use a tack hammer to prevent bruising. For wood thresholds, use brass screws that are resistant to moisture. Position the pilot holes in a pleasing pattern and use a counter-sink bit to ensure the screws are flush with the threshold surface.
