How To Measure Vent Registers

Updated Jan 13th, 2022 – Check out our new How to Measure Registers and Grilles page for even more details. We even have a short video tutorial on Facebook!

"Mensurate Twice Order Once"

One of the most common returns we receive concerning our floor registers, involves a customer who miss-measured.. They've measured the faceplate of their existing register or grille, and ordered using those numbers. This is incorrect for floor registers and grilles. It is an industry standard to measure your duct work or the actual hole in the floor. This web log explains only what a register is and how it differs from a grille, and how to properly measure and install them.

Register vs. Render Air Grille

The official definition of a register is "an adjustable, grill-like device through which heated or cooled air is released into a room." A annals about commonly has air coming out of it (whether it exist common cold air or warm air) and will have a damper to control the airflow. The damper would drop into the hole/opening in your floor, and have a movable plate for regulating the airflow normally past a visible knob the protrudes from the faceplate (this will vary by way of register). Other common names for a flooring register include: diffuser, vents, air annals, supplies, air outlets, etc.

A annals is different from a return air grille. Flooring render air grilles are used equally a return or exhaust air inlets to ducts. Because air does non come up out of the duct piece of work, dampers are non included (because in that location is no forced air flow to control). Floor return air grilles volition nonetheless have a minor drop in area that will go into your floor opening, but there will not be a damper. There is not a wide choice of styles and finishes for flooring grilles, and if yous take a small plenty opening (that matches flooring register sizes) you could apply a decorative floor register and leave the damper completely open. Other common names for flooring air return grilles: floor grilles, flooring returns, floor grates, etc.

How to Measure Floor Registers and Grilles

Information technology is an manufacture standard to measure out the bodily hole/opening in the floor to get the correct size of floor register or grille that you lot will need. Take out the existing floor register, and measure the length/width of the opening in inches (all registers will be listed in inches). If your duct work/opening in the floor is 4″ x ten″, y'all'll need to purchase a four×10 floor register. Information technology will not matter if you say the length beginning or the width start, example 10×4 or 4×10, when it comes to floor registers. Most floor annals dampers will drop into the hole nearly ane inch or then, so make certain yous take enough clearance in your duct work for this. Practise NOT Mensurate THE FACEPLATE OF THE EXISTING REGISTER!

A register/grille faceplate volition differ from way to style and manufacturer to manufacturer. The packaging of the floor register or listing on a website, will have the opening dimensions. The faceplate dimensions should be listed in the clarification- simply that will non exist the chief number identifier, nor will y'all probable find a replacement annals/grille that will accept the exact same faceplate dimensions. Standard floor registers and grilles will an fifty-fifty-whole number (measurement)- for example 2, 4, half dozen, viii, 10 etc. There are some registers out at that place that can piece of work for iii″ opening sizes- merely choices are limited. If y'all have lets say a 2″ x 11″ opening- you may want to try to extend the hole size past ane″ so yous can get the standard size 2 ten 12 register. Otherwise you may take to become something custom-made for your opening.

**Register listing on our website- Social club by pigsty dimensions, but the faceplate dimensions will exist listed for your reference.

Installation of Flooring Registers and Grilles

In one case you buy a register or grille that is a match for your opening size, you may at present install it. Hopefully you have left the previous (old) floor register in place (so nix or no 1 could fall downwards in the duct work). Installing floor registers and grilles is a breeze compared to wall or ceiling registers – no drilling or screwing in annihilation. Simply take out your existing floor register, and drop in (damper first) your new register. The damper should keep the register in place. If you lot purchased a register, yous'll be able to control the airflow using the damper control.

Haven't ordered a floor annals/grille withal and need assist on different styles and finishes available? Check dorsum for an informative blog walking yous through the dissimilar styles, finishes, and types of flooring registers available on Installerstore.com, as well as custom-made grilles!

Now that you lot know the size you lot need….

Check out our NEW browse past size folio on Installerstore.com and FloorRegisters-n-Vents.com (larger inventory). You can hands browse ALL of the registers and grilles available in the particular size you need! For example, demand a 4×x floor register? Simply click on the 4×10 text or image to see ALL floor registers and returns available for purchase.

Installerstore.com Scan by Size

BrowsebySizeIS