What Size do I need?
Floor Registers, Floor Returns, and Air Returns
***In most cases the rule is to measure the size of the duct or vent rough opening and NOT your existing vent cover.***
Measure the size of the duct opening (length & width). The outside dimensions vary depending on the size and style chosen but range from about 1-1/4" to 2" greater on both length and width. For example, the typical outside measurements of a 4x10 register would be 5-1/4" x 11-1/4".
(Overall size varies depending on the vent cover selected)
Flush Mount Register Installation
- Begin by measuring the size of the duct opening
- Take special note of the overall size of the flush mount item. Both flush mount with and without frame require a larger cut out that a traditional "drop-in" style. The overall sizes are listed on the product page.
- Install the Frame (Flush Mount with Frame) and then place the insert in the frame or simply drop the Flush Mount No Frame into the opening. It will sit on the sub floor.
*Be sure to specify the thickness of your flooring which can range from 3/8" - 3/4".
We provide detailed instructions for measuring and installing the flush mount frame when laying a new hardwood floor. This includes measuring the duct size, determining space from wall boards and butting flooring panels to the vent frame, sanding the frame with the flooring and staining/finishing the vent to match the flooring.
We provide instructions for retrofitting a flush style frame into an existing wood floor, including the option to purchase the routing bit, corner chisel and template you will need to complete this task.
Baseboard Registers and Returns Installation
Baseboard and Slab style registers sit on the floor up against the wall. These may be secured to the wall in a variety of methods (screws, nails, Velcro tape), dependent upon the need and/or frequency to access the duct work behind or below the vent. For these items, you should measure the overall length.
Wall, Ceiling, and Toe-Kick Registers
Wall & Ceiling and Toe-kick registers are mounted into a wall, ceiling or inserted into a cabinet, stair riser or other framed structure. These may be secured to the wall, ceiling or structure in a variety of methods (screws, nails, Velcro tape), dependent upon the need and/or frequency to access the duct work behind the vent. Please measure the duct size and take note of the overall size.
Return Air Filter Frames
These units, typically mounted on the wall or ceiling, allow easy access to change the filter because they are hinged. These are measured simply by the size of the filter. For example a filter size of 20" x 20" would require a 20" x 20" return air filter frame.