Custom Capabilities

We can custom manufacture almost any size...

At kul grilles, we can custom manufacture almost any size to suit your unique requirements. From small, sleek, linear vent covers to long, spliced sections (Our largest to date is over 35 feet long!) - we can help you design custom air vent covers that will complete your modern space.

Have a vision? Request a quote from one of our product specialists:

Request a quote

The worlds most beautiful spaces deserve kul grilles

We supply custom and standard sized vent covers to the most beautiful spaces in the world. From brand new design build modern homes, to mid-century renovations, our modern air vent covers are the perfect accent to finish your modern masterpiece.

custom made floor vent cover in modern bathroom made by kul grilles

Custom Anodized Clear Linear Floor Register

Small custom air vent covers for finishing details

Spliced 25 foot Brushed Chrome air vent cover


Painted grilles
(Glacier Frost, Black Monolith, Wenge Brown)
4.5 - 5 weeks (plus shipping time)
Brushed Chrome grilles 4.5 - 5 weeks (plus shipping time)
Anodized Grilles 4.5 - 5 weeks (plus shipping time)


We can manufacture a variety of configurations to suit your design vision. From long, linear design features to large square return air grilles, we have the capabilities to help you build your custom vision. Contact one of our product specialists for any specific questions or challenges.




air vent cover square configuration made by kul grilles floor register rectangle configuration custom size vent cover air vent long linear configuration custom made vent cover


  • Minimum size we can manufacture: 4" x 1-1/2"
  • Maximum size we can manufacture: 72" x 24"
  • We can manufacture sections longer than 72" by joining grilles together (splicing).


kul offers two styles of dampers for custom applications. We do not ship our standard vent covers with dampers (Maximum airflow is important, so we only provide dampers on request for rooms where airflow control is required).

SLIDE DAMPER          



floor register slide damper made by kul grilles vent cover with opposable blade damper made by kul grilles


  • Available for 10x3, 10x4 and 12x4 dampers
  • Stock item – available for quick ship


  • Custom manufactured damper for any size
  • Lead time applies (depending on finish)


floor register and air vent cover finish options by kul grilles

We offer a range of modern, minimalist finishes to suit every modern home. From our hand finished Brushed Chrome grilles to our durable Powder Coated and Anodized finishes, we have almost every option to suit your needs.


Our Brushed Chrome Finish is a hand brushed aluminum finish with a light, oven baked clear coat to prevent fingerprints and scratches. This finish is the most complementary to stainless steel or brushed nickel and satin fixtures.


Our Powder Coat Paint Finishes (Glacier Frost, Black Monolith and Wenge Brown) are extremely durable and resistant to chipping, scratching and corrosion. Our paint systems are extremely flexible, allowing the handling of large single-piece sections of varying size and lengths.

floor vent cover powder coat process by kul grilles


Our Anodized finishes offer a sleek, satin finish to match modern anodized accents. Anodizing is an electrochemical process that creates a protective coating of aluminum oxide on the surface of our vent covers.

Unlike painting, the anodizing coating is not applied to the surface. Instead the existing aluminum oxide is enhanced and grown out from the aluminum. This creates a surface that is much harder and more resistant to corrosion and abrasion than raw aluminum.

air vent cover anodizing process by kul grilles

Whatever your unique custom challenge might be when it comes to floor registers, wall or ceiling vent covers, let our product specialists guide you through the custom build process. Submit a quote request today to start the process! We look forward to working with you!