Sliding Door Lock Sets

What a sliding door lock set includes

A sliding door lock set pairs a locking mechanism with an escutcheon — the metal plate the lock mounts through — sized to fit the door's existing hardware cutout. Like other cabinet hardware and door hardware sold as matched sets, these are meant to replace an existing lock rather than retrofit a brand-new door. These sets cover patio doors, interior sliding doors, and pocket doors, each with different hardware needs depending on whether the door needs to lock from outside, lock for privacy only, or simply latch shut.

Patio, privacy, and pocket: picking the right function

Patio sliding door sets are built for exterior doors and typically include a keyed or thumb-turn lock rated for security, since these doors are a common entry point into a home. Privacy sets skip the key entirely; they're meant for interior doors like a bathroom or bedroom slider, where the only requirement is a locked-from-inside latch. Pocket door locks are a separate category again, sized to sit flush in a door that slides into the wall rather than across it, with a recessed pull instead of a protruding handle.

Sizing before you order

Escutcheon dimensions are listed as width by length, such as 1 3/4" x 11" or 2 1/2" x 13", and need to match the existing door prep, not just look right. Before ordering, measure the current plate and the distance between mounting screw holes, and confirm whether the door needs a keyed exterior cylinder or a privacy-only mechanism. A mismatch in plate size usually means new holes have to be drilled, which is worth avoiding on a finished door.

Finish and style range

Rocky Mountain Hardware builds these sets in a range of plate styles, from a plain rectangular profile to the more detailed Metro line, so a sliding door set can be matched to whichever finish already runs through the rest of the house rather than standing apart from it.