HVAC Return Vent Grille

I have a return vent opening that is 14". However, I have wood trim that is 1" above my vent opening, so the return vent grille needs to be at most 14.75" overall. I need to be able to open and open and close the grille for whenever I change the air filter. There are no metal grilles that exist with for a 14" opening, with 14.75" (or less) overall dimensions. See example below of a metal one that is the correct opening size, but the frame makes the overall dimension too big. https://hvacpremium.com/products/14in-x-14-steel-return-air-filter-grille-for-1in-filter-removable-face-door-hvac-duct-cover-flat-stamped-face-white-outer-dimensions-165w-x-165h?variant=15783607763010

January 4, 2026