Most people only think about the handle. But every interior door runs on a small set of parts working together, and the best of them are designed around one thing: your hand.
This guide is for homeowners upgrading interior door hardware. It explains each part, why ergonomic design matters, and what to check before you order. For styles, see The Most Popular Interior Door Hardware Styles.
Quick Answer
What is interior door hardware?
Interior door hardware is every part that lets an inside door open, close and stay put: the handle set (lever, rose, latch and strike plate), plus the hinges and a door stop.
A complete OKUN set includes the levers, an adjustable latch, the strike plate and the mounting hardware, all designed in New York with hidden screws and a lever shaped for the hand.
Key Takeaways
- It’s a system. Lever, rose, latch, strike plate, hinges and stop all work together.
- Design for the hand. A good lever works with one loose motion and has no edges that dig in.
- Minimal is practical. Hidden screws and plain shapes mean less to catch, clean or loosen.
- Match what you can see. Hinges and stops share the handle finish; hidden parts don’t need to.
- Check two numbers first. Door thickness and backset decide whether a new set fits.
What counts as interior door hardware?
Six parts, split between the door and the frame. Four come in the handle set; hinges and the door stop are usually bought separately. Window maker Andersen describes a lockset the same way, as all the pieces that work together on a door.
- LeverThe part you hold and press down.
- RoseThe plate behind the lever, round or square.
- LatchThe spring bolt in the door edge.
- Strike plateThe plate in the frame the latch slides into.
- HingesThey carry the door’s weight.
- Door stopIt keeps the lever off the wall.
Backset is the distance from the door edge to the center of the handle hole. Most US interior doors use 2 3/8″ or 2 3/4″, and OKUN’s adjustable latch fits both. How to measure is in Will This Door Handle Fit My Door?
OKUN handle set specifications at a glance
| Specification | OKUN set |
|---|---|
| Lever length | 4 3/8″ (Stark, Arc) to 5 1/4″ (Halo) |
| Lever turn | 45°, reversible for left or right doors |
| Standoff from door | 2 5/8″ |
| Rose | 2 5/8″ round or square, screws hidden |
| Latch | Adjustable, 2 3/8″ or 2 3/4″ backset |
| Door thickness | 1 3/8″ to 1 3/4″ |
| In the box | Levers, latch, strike plate, mounting hardware, tools |
| Price per set | $59.99 privacy · $49.99 passage · $29.99 dummy |
Methodology: compiled from OKUN product pages and listings, October 2026. Finishes do not change the price.
How are OKUN levers shaped for the hand?
Through three numbers and one rule: a 45° turn, a 2 5/8″ standoff from the door, a lever length matched to the door, and no detail that gets in the way of the hand. Why levers beat knobs in the first place, for arthritis, small children and full hands, is covered in Easier-to-Use Door Handles.
Lever length is the other half. A longer lever gives more leverage, so it takes less effort. A shorter one suits tight closets where a long lever would get in the way.
Why is minimalist hardware easier to live with?
Because less detail means less to go wrong. OKUN’s minimalism isn’t only a look; each omission does a job.
- Hidden screwsNothing to catch a sleeve, collect dust or work loose on the face.
- Plain surfacesOne wipe cleans them. No grooves for grime.
- A small 2 5/8″ roseLess metal on the door, so the lever leads.
- Solid metal, PVD finishA hard finish that resists daily wear.
One lever, four finishes
The same Stark lever on the same white door. Every OKUN collection comes in all four finishes at the same price.
Matte BlackGraphic and modern
Brushed NickelSoft and forgiving
ChromeBright and crisp
Champagne GoldWarm, single sets
Every collection also comes in Champagne Brushed Gold, a warm, brushed finish sold in single sets.
Choosing between them is covered in Brushed Nickel vs Chrome and Matching Finishes to Every Door Style.
Complete OKUN sets, ready to fit
Every set below is complete: levers, adjustable latch, strike plate and mounting hardware, in four finishes. Shown here in matte black, chrome and brushed nickel.
Complete the room
Architectural grilles
The same hidden fixings and clean lines, for the vents on your walls and ceilings. Matte white with black louvers.
From $35.90 · standard, linear and square
All 12 collections, side by side, are in Modern Luxury Door Handles.
Which hardware parts can you actually see?
Five of them: lever, rose, hinges, door stop and strike plate. Those carry your finish; the latch body sits inside the door and never shows.
What to match to your handle finish
| Part | Visible? | Match the handle finish? |
|---|---|---|
| Lever and rose | Always | Yes, this is the finish |
| Hinges | On the door edge | Yes |
| Door stop | Low on the wall or floor | Yes |
| Strike plate | When the door is open | Yes, use the one in the set |
| Latch body | No, inside the door | No |
| Vent grilles | On the wall or ceiling | No, they take the wall color |
Vent grilles are the exception: they blend into the wall (the Lead‑and‑Recede rule from Matching Vent Covers to Door Hardware). For mixing finishes across rooms, see Can You Mix Door Handle Finishes?
Chrome
Brushed Nickel
What should you check before you order?
Five things, in this order.
- Count the doors. Note which need passage, privacy or dummy handles. Passage vs Privacy vs Dummy explains each.
- Measure thickness and backset. OKUN fits doors 1 3/8″ to 1 3/4″ thick with a 2 3/8″ or 2 3/4″ backset.
- Choose one finish. Then check the hinges and stops in that finish too.
- Check the height. The 2010 ADA Standards place door hardware 34 to 48 inches above the floor; existing holes set it for you.
- Check every door swing. Add a stop wherever a lever could reach the wall. See Will the Lever Hit the Wall?
The short version
Interior door hardware is a small system: lever, rose, latch, strike plate, hinges and stop. Choose a lever shaped for the hand, keep the design minimal so there’s less to catch and clean, and match every part you can see.
Complete Sets, Hidden Screws
Designed for the hand. Priced for every door.
Twelve lever collections in four finishes, each with an adjustable latch, strike plate and mounting hardware. From $29.99, with free 3–5 day delivery.
Shop Door HandlesSee Best-SellersFrequently asked questions
What’s the difference between door hardware and a door handle?
The door handle is the part you touch. Door hardware is everything that makes the door work: the handle set with its lever, rose and latch, plus the strike plate on the frame, the hinges and the door stop. When people say they’re upgrading their hardware, the handle set is usually the main change.
What parts come with an interior door handle set?
A complete set includes the levers for both sides, the latch, the strike plate and the screws to fit them. A complete OKUN set includes the levers, an adjustable latch, the strike plate, mounting hardware and installation tools. Hinges and door stops are bought separately, so check whether yours need replacing too.
Do door handle sets come with hinges?
No. Handle sets cover the lever, rose, latch and strike plate; hinges are sold separately because they depend on the door’s weight, size and corner shape. If you’re changing finish, count the hinges on each door (most have two or three) and order them with the handles so the whole door changes at once.
What is a strike plate, and do I need a new one?
The strike plate is the small metal plate on the door frame that the latch slides into when the door closes. It protects the frame and holds the door shut. Use the new one that comes with your handle set, so its finish matches and its opening lines up with the new latch.
How high should interior door handles be?
Under the 2010 ADA Standards, the operable parts of door hardware must sit 34 to 48 inches above the finished floor. Homes aren’t always required to follow it, but it’s the range that works for most people. If you’re replacing hardware in existing holes, the height is already set by the door.
Keep Reading
- Modern Luxury Door Handles — all 12 collections side by side
- Will This Door Handle Fit My Door? — measure backset and thickness
- Easier-to-Use Door Handles — why levers work for every age
- Matching Vent Covers to Door Hardware — the Lead‑and‑Recede rule
Sources: U.S. Access Board — ADA operable parts · WBDG — 2010 ADA Standards, 404.2.7 · Andersen Windows & Doors — Parts of a Door · OKUN Brio passage set listing
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