Backsets, functions, keying systems, and finish coordination — everything your builder won't tell you.
This guide covers everything your builder probably will not explain in detail: backsets, functions, keying systems, and finish coordination. Consider it a reference document for any project where getting the hardware right actually matters.
Understanding Backsets
The backset is the distance from the edge of the door to the center of the knob or lever hole. Most residential doors use a 2-3/4" backset. Some older homes or custom doors use 2-3/8". This measurement determines which hardware will physically fit your door — it is not negotiable, so measure before you specify.
Functions Explained
- Passage: Turns freely from both sides. No lock. Used for hallways, closets, and rooms where privacy is not needed.
- Privacy: Has a push-button or turn-button lock on one side. Used for bathrooms and bedrooms.
- Dummy: Non-functional pull — no latch, no lock. Used for decorative purposes or double doors.
- Entry: Keyed from the outside, thumb turn or push-button from inside. Front and back doors.
Finish Coordination
Coordinating finishes across a full home is where most projects go wrong. The goal is not necessarily to match everything — it is to create a coherent language. Aged brass door handles, satin chrome kitchen pulls, and matte black bathroom fixtures can coexist beautifully if they are chosen with intention.
A simple rule: pick two or three finishes for the whole house, assign each to a zone or function, and stay consistent within those zones.
VK Hardware
Questions about your project? We are always happy to talk hardware.
