Rectangular

Rectangular door hardware: trim plates, not cabinet knobs

Despite sharing shelf space with knobs and pulls made for cabinets, this rectangular collection is entirely architectural door hardware built by Rocky Mountain Hardware: lock trims, cylinder covers, and privacy locks shaped as rectangular plates rather than round rosettes. Anyone searching for a rectangular cabinet knob won't find it in this collection; it's the trim hardware that surrounds a door's lock or lever.

What a rectangular trim actually does

These plates mount around a door's mechanism, whether that's a European-profile cylinder, a keyed lock, or a bathroom privacy latch, and cover the surrounding wood where the mechanism passes through the door. Sizes are listed in millimeters, not inches, starting at a modest 67x67mm bit-key lock plate and stretching up to an 89x330mm latch trim or European-profile plate built for a taller door application. The rectangular shape reads more architectural and less residential-decorative compared with a round rosette, and that's the reason it shows up mostly on entry doors and interior doors built to a European hardware standard.

Matching mechanism to trim

Because each plate matches one particular mechanism type, figure out whether the job calls for a European-profile cylinder trim, a bathroom lock trim, or a latch trim before ordering, since they aren't interchangeable even when two plates are close in overall size. A 90x90mm European-profile plate won't fit a 76x254mm bathroom lock cutout, for example, so match the plate to the cutout that's already there rather than guessing from dimensions alone.

Before you order

Measure the cutout or mechanism currently in the door, not just the trim plate you're replacing, since older doors sometimes use nonstandard spacing that a new rectangular trim won't automatically match. These plates come from Rocky Mountain Hardware as standalone trim rather than bundled with the lock body or lever, so plan to order the mechanism separately when a door is being fitted out from scratch instead of just swapping a worn plate.