Vent Cover Measurement Guide

1. Remove current vent covers 

2. Measure the existing hole  

vent cover sitting above air duct hole vent cover opening with tape measure beside hole
Note: Do NOT measure the existing air vent cover. Every vent cover has its own unique size of frame so we cannot use the old vent cover as an accurate measurement guide.
Note: For custom size vent covers please send the exact dimension of the existing hole. This helps determine a more accurate measurement and what size would fit best.

3. Determining a kul grille size:

Hole Opening
Dimensions
Choose This
Vent Cover Size
Stack Dimension Overall Frame
Dimension
10" x 3" 10" x 3" 9 3/4" x 2 3/4" 11 3/4" x 4 3/4"
10" x 4" 10" x 4" 9 3/4" x 3 3/4" 11 3/4" x 5 3/4"
12" x 2.5" 12" x 2.5" 11 3/4" x 2 1/4" 13 3/4" x 4 1/4"
12" x 4" 12" x 4" 11 3/4" x 3 3/4" 13 3/4" x 5 3/4"
14" x 2.5" 14" x 2.5" 13 3/4" x 2 1/4" 15 3/4" x 4 1/4"
14" x 4" 14" x 4" 13 3/4" x 3 3/4" 15 3/4" x 5 3/4"
10" x 6" 10" x 6" 9 3/4" x 5 3/4" 11 3/4" x 7 3/4"
12" x 6" 12" x 6" 11 3/4" x 5 3/4" 13 3/4" x 7 3/4"
14" x 6" 14" x 6" 13 3/4" x 5 3/4" 15 3/4" x 7 3/4"
14" x 8" 14" x 8" 13 3/4" x 7 3/4" 15 3/4" x 9 3/4"

 

Note: for a 10" x 4" hole opening vent cover dimensions will be as shown as the following;

floor vent cover measurements illustration and dimensions by kul grilles

  • "Stack" is referred to the part of the vent cover that needs to be placed into the existing hole. kul grilles stack dimensions are intentionally undersized by 1/4" for sufficient clearance.
  • Still unsure of what size to order? Click here to message the kul grilles customer service team for additional help. 

 

Try Our Custom Size Vent Cover Visualizer

Ceiling and Wall Vent Covers

Our grilles scan be used for wall and ceiling applications as well as for standard floor vent covers. To mount vent covers securely to a ceiling or sidewall, select the "Yes" option from the "Include Mounting Holes" menu option as listed on our product pages.

 

Countersunk screwholes  

Mounting hole dimensions  

floor register with screw fastening type diagram by kul grilles floor register with hole diameter diagram by kul grilles
Countersunk screw holes are visible from the face of the air vent cover and are required for sidewall and ceiling mounting applications.
Matching finish flush mount screws are supplied with every order where the mounting hole option is selected.

Number of screws required for various vent cover sizes:

Different sized vent covers do require a different number of screw placement holes to ensure that the vent cover is sufficiently secured into a sidewall or ceiling. The following diagram outlines how many screw holes will be visible on each vent cover size and exactly where the screw placement hole will be placed on the frame for each vent cover.

Number of Screw Holes:

air vent covers number of screws diagram by kul grilles

Screw Placement:

air vent covers screw placement diagram by kul grilles

 

Try Our Custom Size Vent Cover Visualizer