It's All About Installing An Aluminum Threshold, A Wood Threshold  Or Marble Thresholds To Create Smooth, Attractive Transitions Between Floorings!


An Aluminum, Marble or Wood threshold makes for an attractive transition between two different types of flooring. They're ideal to install in doorways where the flooring may change from maybe your bathroom floor tiles to wood flooring or even your kitchen floor tile to carpeting. 

Where ever you have two-floor materials that meet, a threshold is a perfect solution for creating a nice smooth, attractive transition.

There are different materials that you can use for a threshold. You have such options as an Aluminum threshold, a wood threshold, or  Marble thresholds. In some cases, you can create your own by cutting a few floor tiles into the size of your doorway.

Sometimes you may choose a threshold to match one of the two adjoining floors, such as a marble threshold to match your marble bathroom floor tile. Other times you may select to use an aluminum threshold to simply protect the edges of maybe your kitchen floor tile from becoming damaged.

There's also Exterior thresholds available that help to seal out drafts, moisture, and insects. And sealing out moisture is a must for a tiled floor because cold air and drafts are the elements that will eventually damage and darken your floor tiles laying directly in front of the exterior doorway. 

Even the smallest of gaps around your door frame or under your door lets in the same amount of cold air as having a large hole right through the door.

The right exterior threshold will keep your doors draft free while at the same time keeping your home and your energy bills more comfortable.

And aluminum, wood or Marble Thresholds can also significantly improve the appearance of your entryways. 

About Marble, Aluminum And Wood Thresholds

* Marble thresholds are popular for use as a very attractive transition from bathroom floor tiles to the adjoining floor.

You can find them in most home goods stores already premade in a variety of sizes and usually in colors of white, black or tan. And they come in finishes of Polished Marble, Honed Marble or tumbled marble. And they make for a relatively easy installation.

*In some cases, you can create a Tile threshold using your floor tiles.Let's say, your bathroom floor tile or kitchen floor tile adjoins to another flooring with little or no difference in height. 

You can cut enough pieces of your same kitchen or bathroom floor tile to match the width of your doorway. Then install them in a straight row across the threshold area. 

If there is a slight difference in height between the floorings, simply build the floor up with Thinset mortar or a piece of membrane.

An Aluminum threshold is very versatile. It works excellent for a transition between any two floorings you want. The aluminum threshold comes in a selection of different designs, With the most popular being the T-molding. 

You may use It for just protecting your flooring edges. It lays slightly over the edges of both floorings and creates a clean, smooth, attractive break between the two.

There are other designs with a top, bottom and a vertical center piece that connects them. The bottom edges install underneath the two floorings on either side. The vertical separates the two floors and protects their edges, while the top edge slightly covers the tops of the two floorings.

Wooden thresholds are used mostly in homes that gleam with hardwood flooring . One style of the wooden threshold will work very well for transitioning a thinner flooring tile like Vinyl flooring to a wood floor and there's a slight change in height between the floorings.

wood threshold install

In this case, the wooden transition strip would even out the two floorings where they join. You would install the wood threshold at the same time as one of the two floors. You can install these thresholds by locking them to the adjacent floorboards, or by nailing them into place.

Threshold Reducers

Installing Wood Threshold

Sometimes your kitchen or bathroom floor tile edges may not be quite neat enough to display, or it may be in the case of your needing a threshold to cross over your exterior doorway. A threshold reducer would be the perfect design for both. Some of these thresholds are beveled at the bottom making them perfect for a variety of flooring heights.


T-Moldings are availailable with the two sides being level or with two sides set at different heights for different levels of flooring. They can bridge two relatively even floors. or those of different heights.

Installing Wood Threshold


Installing Wood Threshold

Caps come in wood or stone. They are used to cover the seam when your two floors are flush in height.

Cutting Notches Into  Your Wood or Aluminum Threshold

A standard threshold comes straight with no notches, So you'll need to cut any notches needed to make the threshold fit in snug.

There are three different types of door notches your door may have. U- shape, L-shape or straight with no notch at all. Depending on which you have You'll need to cut it into the threshold to make it fit. 

To do this First, measure the distance between the frame of your doorway, And cut your threshold to this length. For Aluminum threshold use a hacksaw to cut. For a wood threshold use a regular saw.

The width and depth of the doorstop determine the size notch you'll need to cut.

So you'll need to measure the notch, transfer the measurements to your threshold and then cut.

Installing Your Aluminum Or Wood Threshold

First, remove the existing threshold. You can get the most accurate measurements for your new one by using the old threshold as a template. If there's no old threshold present, just measure the length of your doorway from the left door jamb the right door jamb.

Clean out all the debris from the threshold area. Then layout the new threshold and mark it with your measurements. For best results use the measurements you got and divide it in half, and then cut those halves off of each end of the threshold. This will keep the pre- made screw holes on the aluminum design evenly spaced.

Lay your cut Aluminum threshold into the door opening, and use the screws that were supplied with it to fasten it down to the subfloor. Then close your door to ensure a good fit.

For wood thresholds, Predrill your nail holes and then fasten your threshold with finish nails or screws. Finish up installing your wood threshold by hiding your fastener heads with a putty that matches the threshold,  And fill the gap between the threshold and the flooring with caulk. 

When you use a wood threshold, you have the option of using a stain, polyurethane or even paint to create whatever color threshold you desire.

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