An unlacquered brass lever on a navy paneled door: function chosen first, finish second.
Door hardware is the part of a house you touch more than anything else, and it tells you very quickly whether a room was thought through. Growing up in Buckhead around old houses and older antiques, I learned to read a knob worn smooth and a little dark by decades of hands as the mark of a house that had been properly lived in. Houses should be lived in, and the hardware is where that shows first.
Knowing how to choose door hardware comes down to three decisions, made in this order: the function each door needs, the measurements that make a set fit, and the finish that ties the rooms together. Skip one and you end up with a lever pointing the wrong way or a latch that won't seat in the door. Local showroom or online storefront, the checklist is the same.
Key takeaways
- Function first. Decide whether each door needs a passage, privacy, dummy or keyed set before you compare shapes.
- Measure before you order. Backset, bore sizes, door thickness and handing decide whether a set fits.
- Finishes age differently. Protective finishes resist wear and living finishes change with use. Read the finish warranty, not just the mechanical one.
Start with function, room by room
Every door has a job, and the hardware has to match it. Five terms cover most houses:
- Passage: latches but doesn't lock. Hallways, closets and pantries.
- Privacy: locks from the inside with a button or turn piece, and usually has an emergency release on the outside. Bedrooms and bathrooms.
- Dummy: a fixed handle with no working latch, used on doors held shut by a ball catch or magnet. Check whether the package is one handle or a pair.
- Single dummy: a fixed handle for one side only, such as a closet door on a catch.
- Keyed entry: locks with a key from outside, and is usually paired with a separate deadbolt on exterior doors.
A prettier finish won't change how a set works. If a powder room needs a lock, buy privacy hardware, not passage hardware in a nicer color. I settle function on the floor plan before I let myself look at a single lever shape. It is the least romantic part of the job and the one that saves the most money.
The measurements that decide fit
Many American doors use standard hole sizes and spacing, but older and custom doors wander. Atlanta has plenty of older houses where no two doors on the same hall are quite alike. Check these four numbers against the product specifications before anything goes in a cart.
Backset
Backset is the distance from the edge of the door to the center of the large hole. Common residential backsets are 2-3/8 inches and 2-3/4 inches. Measure yours and match the latch. Some latches adjust between the two sizes; others don't.
Cross-bore and latch bore
The cross-bore is the large hole through the face of the door, typically 2-1/8 inches in diameter. The latch bore is the smaller hole through the edge, typically 1 inch. Measure the diameter of each.
Door thickness
Interior doors are commonly 1-3/8 inches thick and exterior doors 1-3/4 inches. Most residential sets fit that range, but a thick custom door or a thin vintage one may need different hardware or a manufacturer-approved adapter kit. Check the installation template before ordering, and if the backset, bore sizes or supported thickness range aren't listed, ask the supplier to confirm compatibility.
Knob or lever?
Knobs suit traditional rooms and take up less visual space. A crystal or porcelain knob on a paneled door in an old house is hard to beat. Levers work in both traditional and modern interiors, and they are easier to use with limited grip strength or full hands. Most open with a closed hand or a forearm, which you will appreciate the first time you carry a laundry basket or a bag of groceries through the house.
You'll see levers sold as "ADA compliant." Accessibility rules for covered spaces call for hardware that works without tight grasping, pinching or twisting the wrist, but a lever's shape alone doesn't establish compliance. Installation and operating force matter too. Private single-family homes are generally outside ADA requirements, though easy-to-use hardware is still a practical choice.
Check handing before you order
Some levers are directional, so you need the correct handing, the left- or right-hand orientation. Manufacturers don't all use the same ordering convention. Follow the diagram for the specific product: note which side you're standing on, where the hinges sit, and whether the door swings toward you or away. Many levers reverse during installation. Curved levers, fixed dummy handles and some entry sets need a specific orientation. And don't assume the handing on a door order is the designation the hardware supplier needs.
Finish: the look and the lifespan
A finish decides both how a door looks and how much you'll fuss over it. The common categories age very differently:
- PVD finishes. Physical vapor deposition applies a thin, hard coating to the metal to improve wear resistance. Durability and warranty coverage still depend on the product and how it's used.
- Plated or lacquered finishes. Plating adds a layer of metal; lacquer adds a clear protective coat. A product may use either or both, and wear shows first where hands land most often.
- Living finishes. Unlacquered brass and similar uncoated metals darken, spot and develop a patina with handling and exposure.
I'm biased toward living finishes. The French iron coffee table in my living room has a green patina I wouldn't trade for anything, and unlacquered brass on a door gets better in the same way. But choose a living finish because you want it to change, not because you expect it to stay uniform. Living finishes are often excluded from finish warranties for exactly that reason, so read the finish coverage separately from the mechanical coverage, and follow the manufacturer's cleaning instructions so you don't damage a protective coating.
Mix or match: building a hardware palette
Mixing metals works when there's a plan behind it. Contrast and intention tell a better story than a house where everything matches, but metals that clash without intention just look like a renovation that ran out of budget. A few habits keep connected rooms feeling connected:
- Pick one main finish for door hardware and a supporting accent for nearby fixtures.
- Repeat finishes within connected spaces so each one has a clear relationship to the room.
- Keep hardware shapes consistent where several doors are visible together, even if the finishes differ.
Light changes everything. Compare samples beside the actual paint, cabinetry and flooring, in daylight and again under the room's lamps. A brass that reads warm in a showroom can look quite different under cooler bulbs at home, which is the same undertone problem I run into with paint and with glossy versus matte cabinet finishes. For a neutral place to browse commercial and residential door hardware before you start ordering samples, an online storefront like doors for pros lets you compare a lot of brands and functions side by side.
Security grades without the jargon
Lock packaging often carries an ANSI/BHMA grade. In standards that use Grades 1 through 3, Grade 1 is the highest performance grade. Grade 2 can be a sensible starting point for a residential exterior door, but choose products suited to the door and its security needs.
BHMA also uses a residential letter rating that assesses Security, Durability and Finish separately, and AAA means the highest rating in all three. Those ratings help you compare tested performance, but a strong lock still needs a sound door, a solid frame and a properly installed strike plate. I wrote more about the quieter side of this in design details that make a home feel secure.
The front door
Entry hardware is where you can have a little fun. Split finishes put one finish outside and another inside, so the exterior can answer the façade while the interior matches the hall. Confirm availability for the specific set. Long pulls and decorative backplates, also called escutcheons, can change the proportions of a plain door completely, and a suitably sized backplate may conceal old holes. Check its dimensions and mounting requirements first. If you choose a non-locking pull, plan for a compatible, appropriately rated deadbolt.
The door itself sets the stage for all of this. If you're replacing doors too, my piece on interior door design covers panels, materials and color.
Sourcing and sampling
Finish names aren't standardized across brands, and a screen is not a sample. Two "satin brass" finishes from two makers can sit a full shade apart. Ask whether finish samples are available, or buy a single test set before you order for the whole house. Look at it in the actual room, check the return policy, and confirm what each package includes, especially for dummy handles, latches and entry sets.
A room-by-room checklist
- Bedrooms and bathrooms: privacy hardware with an exterior emergency release.
- Hallways, closets and pantries: passage hardware where a working latch is needed.
- Double doors: working hardware on the active door and suitable fixed hardware on the inactive one. Exterior pairs may also need flush bolts or another specified securing system.
- Exterior doors: an appropriate entry set and a rated deadbolt, with compatible door and frame preparation.
- Cabinets: for replacement pulls, match the center-to-center screw-hole spacing so you aren't patching holes.
Keep one list for the whole house: function, measurements, quantity, handing and finish for every door. Take it to whichever supplier you use. It cuts down on mix-ups between sets that look alike, and it turns hardware into one coordinated design decision instead of twenty small ones.
Frequently asked questions
What is the difference between passage and privacy door hardware?
Passage hardware latches but never locks, so it belongs on hallways, closets and pantries. Privacy hardware locks from the inside with a button or turn piece and usually has an emergency release outside, which makes it the right choice for bedrooms and bathrooms.
How do I know what backset my door needs?
Measure from the edge of the door to the center of the large hole in its face. Residential doors are usually 2-3/8 or 2-3/4 inches. Match the latch to that number, or choose a latch that adjusts between the two.
Does unlacquered brass door hardware tarnish?
Yes, and that's the point. Unlacquered brass darkens, spots and develops a patina with handling. If you want it to stay bright you'll be polishing; if you want it to stay uniform, choose a PVD or lacquered finish instead.
Can I mix door hardware finishes in the same house?
You can, with a plan. Choose one main finish for doors and a supporting accent for nearby fixtures, repeat them within connected rooms, and keep shapes consistent where several doors are seen at once.
Mechanism, measurements, then metal
Choose the function, confirm the fit, then pick a finish that suits the room and how much maintenance you actually want. A sample and the installation instructions cost almost nothing next to replacing a houseful of hardware that looks right and doesn't work. Get the order right and the thing you touch every day becomes one of the best details in the house.
