how to extreme

Installing Miterless Moulding Saves Time

Construction How-To, Finish Carpentry, Trim Carpentry February 26, 2011 Matt Weber

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By Matt Weber



EHT has reported on Fypon’s miterless crown moulding system in the past, and how it saves time by eliminating miter cuts or coped joints. But how much time does it save? Well, I had a recent opportunity to install the system in a simple 9-1/2-by-11-foot square room, and this time I clocked the process.

Fypon Banner Ad Small Installing Miterless Moulding Saves Time

I should preface this by explaining that this time frame won’t apply to every job. By using full-length sticks of moulding, I was able to run a piece from one corner to the other without joining two sticks in the middle (typically using supplementary miters called scarfing, although with urethane moulding you can actually join two sticks with a straight 90-degree butt joint, along with some nails and poly-based adhesive). Eliminating these extra cuts obviously saves time.

I also do not account for the time spent gathering tools to set up your work area, nor do I account for drying times (for caulk, spackle, paint, etc). And, finally, I had the advantage of using a pneumatic nailer, as well as a laser range finder (also called a distance-meter), which greatly sped up the process of measuring my moulding lengths—beats the heck out of a tape measure in these situations. These tools can be a little pricey for the occasional DIY’er, but if you do a lot of moulding installation (or building of any sort), they’re a very worthwhile investment. Word of warning: If purchasing a distance-meter, select a laser-based unit like the Bosch Model DLR165K and completely avoid a sonar-based unit, which will give you a different misreading every time. From my experience, the sonar-based tools are basically useless.

While I’m fairly well-versed in installing standard wood crown, I’ve never timed such an installation. I was too busy cutting miters—often re-cutting miters—or coping inside corner joints with a coping saw and wood file. Standard installation can be a very time-consuming and labor-intensive chore that’s rife with surprise obstacles, such as out-of-square corners. Installing standard moulding in similar sized rooms can easily take from dawn to dusk. The miterless system simplifies things greatly, and in turn, speeds up the job. Here’s how it went:

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The corner blocks are the key to the system, available for both inside and outside corners.


Step by Step

Although the moulding comes pre-primed, throw a finish-coat on the moulding prior to installation, this eliminates time spent masking off the walls with tape. In the end, you’ll only need to touch-up paint. Time spent pre-painting: approx. 15 minutes.

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Install the block with rails and adhesive.

Installing the corner blocks is a super-simple job. Simply apply a polyurethane-based construction adhesive to each side of the block that will contact the wall and nail in place. Using an air-nailer, I installed all four inside corner blocks in roughly 5 minutes.

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A laser range finder (aka distance-meter) is a real time-saver. The Bosch Model DLR165K shown gives an accurate reading every time.

Next, use a stud finder to mark the stud locations so you’ll know where to nail. Time spent finding studs: approx. 10 minutes.


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Straight 90-degree cuts mean you don’t have to measure and cut angles.

Then, using the distance-meter, I was able to measure each moulding length, then cut it on my chop saw and nail it in place in about 7-1/2 minutes each. The square cuts are the key to the system, so if you can measure and cut a board, you can successfully install this system. (Add about 1/4 inch to each measurement, and you’ll find the urethane moulding will “snap” into place). That equates to approximately 30 minutes to install all four moulding strips. If you’re using a tape measure, you can expect it to take more time.

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Apply poly-based adhesive where the crown meets the corner blocks.