Installing a Marble Threshold

Marble thresholds (sometimes called marble saddles) are very common in many homes, often found at bathroom entries.

They look really nice, they’re cool and smooth to the touch – and they’re not terribly expensive.

Having recently installed a marble threshold as part of a more comprehensive home rehab project, this summary shows the steps I took – along with the tool and material details.

For me, in light of the much larger effort, this saddle installation was a quick and easy project that was frankly kind of fun to tackle!

It was an improvisation that led me to this marble threshold installation…

The Ugly Concrete Slab

After re-creating a doorway that had previously been removed, I found myself in a bit of a quandary staring down at carpeting on both side of the newly installed door and jamb – with a very distinct area of nasty-looking concrete slab in between…

Carpets and Open Concrete Slab by Door Jamb

This home was being prepared for sale, and clearly this had to be addressed.

There were no remnants of the original carpeting from the rooms on either side of the doorway, and both carpets were old – having been installed at least 8-10 years prior. One was even fraying a bit, which wasn’t really surprising at it was recently up against a wall that no longer existed.

Seeing no practical way to address this repair with carpeting, a nice marble threshold seemed a potentially perfect way to go, as long as I could find one of the appropriate width. (Ideally, I wanted to cover all the concrete and also pin down just a small bit of both carpets as well – hold them down and address the fraying.)

Installation Tools and Materials

It took only a single trip to the hardware store; I was really happy to see a significant variety of marble threshold widths, even some tapered on one or both sides. The length was a concern as well, of course – but much less so. It only takes one cut with a wet saw to get the proper length, and some hardware stores may even do this for you if you don’t own a wet saw, usually for a small fee.

Threshold Pieces to Supplement Marble Saddle

In addition to the marble threshold, I also picked up a number of wood trim pieces as this was truly an improvisation effort and I wasn’t completely sure the marble would be enough. I always find it best to buy extra material (for most every project) – and then return whatever I don’t use afterwards.

Was a great stroke of luck that the marble threshold I found was exactly the right length – no wet saw needed for me!

Additional tools and materials I assembled for this effort included:

Click the Amazon links above for more information and insight, but these items can be acquired pretty much anywhere. And, of course, this is merely what I did – this can be changed-up in many ways, I’m sure. But you’ll see each of these items used in the installation photos that follow.

On a personal note, though, I find Phenoseal and liquid nails to be useful in many, many situations. To me, they’re both right up there with duct tape and zip ties… :-)

Installing the Marble Threshold

The photos that follow show each step of the process I followed, and this took less than an hour for sure. Naturally, it’s always best to be as meticulous and careful as possible – and that’s what took much of the time.

First – I cleaned up the work area as best possible…

Shop Vac the Marble Threshold Work Area

All debris was removed from the concrete slab and the carpets were trimmed gently where frayed material was hanging loosely. I was careful to keep all carpet trimmings as I though I might find a use for them in case the marble saddle didn’t fit perfectly.

In order to test the saddle for fit, I found it necessary to partially remove the inner trim pieces on the bottom inside of the door jamb as shown below. Did this very carefully with a sharp razor knife and a flat screwdriver…

Positioning Door Jamb with Marble Saddle

Once I was positive that all fit beautifully, I applied some of the subfloor Liquid Nails as shown – making sure not to overdo it. I surely didn’t want any of this oozing out onto the carpets after the marble threshold was positioned!

Marble Threshold to Subfloor Construction Adhesive

Once the saddle was sitting nicely in place, it was time to restore the door jamb, adding some of that Phenoseal caulk to fill the nicely – and then I touched up the door jamb in total with the matching touch-up paint…

Caulking the Door Jamb by the Marble Saddle

I ended up using some of the carpet trimmings to make everything look a little nicer in one small area… I guess sort-of like hair plugs on a receding hairline? But I never had to use anything other than the marble for the threshold – the other extra wood trim pieces I bought were happily taken back by the hardware store.

Some final shots of the final room transitions…

Marble Threshold Installation

Marble Saddle Installation

So, again – a quick and genuinely fun little effort, with a really nice aesthetic impact in the end. Everything looks clean, crisp and properly finished.

What’s really pretty cool is that this home sold almost immediately when we finally put it on the market. Very close to the asking price as well. I’m not so sure it would have gone quite as well with that ugly concrete slab exposed as it was!

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