Neither lever handles nor round knobs are better for every home. A lever opens with a downward push from a hand, wrist, or elbow, so it suits people with full arms or a weak grip. A round knob needs a grip and a twist, keeps a compact traditional look, and is harder for small children to work. Who uses the door, and how, decides it.
Lever handles in daily use
A lever handle opens with a downward push. The lever turns the spindle, the square bar through the door that draws the latch back, and the length of the lever does the work your fingers would do on a knob. You can open one with a wrist or an elbow while carrying a laundry basket. For anyone with arthritis, a weak grip, or wet hands, that difference shows up many times a day.
That ease cuts both ways. A toddler who can reach a lever can often hang on it until the door opens, and some dogs and cats learn to jump up and push one down. On an outside door or a basement stair door, that matters.
A lever also sticks out sideways from the rose, the round or square plate that sits against the door face. Because the arm projects, it sweeps a wider arc than a knob and can catch a sleeve or a bag strap as you pass.
Round knobs in daily use
A round knob needs a grip and a twist. Your hand closes around the knob and rotates at the wrist, firmly enough not to slip. Most adults with dry, empty hands do this without thinking. Wet or greasy hands, stiff joints, or full arms make it hard, and you cannot turn a knob with an elbow.
A knob's appeal is its compact, traditional shape. It stays close to the door, suits many older doors and trim, and is less likely to snag clothing. A round knob also has no left or right. Some lever sets, by contrast, are made for one swing direction and have to be ordered to match the door.
Small children often cannot turn a round knob, because their hands are too small to grip and twist at once. Some households count that as a plus on doors to the street or the stairs. Others find it a nuisance when the same child cannot get out of a bathroom without help.
How do you decide for a particular door?
Start with the people who use the door, then look at the door itself. These are the points that usually settle it:
- Who uses this door most, and whether anyone has limited grip, hand pain, or a cane or walker that keeps one hand busy.
- Whether children or pets are a concern at this door, and which you want there: easy opening or a door that stays shut.
- Clearance. Open the door fully and look for a wall, furniture, or another door the handle could strike. A lever that hits something will mark both surfaces.
- The existing door prep. The bore hole is the large round hole through the door face, and the backset is the distance from the door edge to the center of that hole. When both match the new set, it fits without new drilling. An older door with a mortise lock, a box-shaped lock body set into a pocket in the door edge, needs handles made for that lock.
- The lock function. Passage sets are for doors that never lock. Privacy sets have an inside button for bedrooms and bathrooms. Entry sets take a key on the outside.
Handle shape and the lock behind it are separate choices, picked together. Levers and knobs both come in passage, privacy, and keyed entry versions. When you order, you choose a handle style and a lock function, and the set has to fit the prep already on your door.
What to note before you order
Photograph both sides of the current hardware, plus the door edge with the latch plate showing. Measure from the door edge to the center of the knob, and note which way the door swings and who uses it. Those details show whether a lever will fit the existing holes.
Nostrand Locksmith handles door hardware and repair in Bedford-Stuyvesant, Crown Heights, Clinton Hill, and elsewhere in Brooklyn, along with lock change and rekey if you want new keys with new handles. To talk through what your door can take, call (516) 644-8976 with your photos and notes in front of you.
Frequently asked questions
Can I swap a knob for a lever without replacing the door?
Swapping a knob for a lever usually leaves the door in place, because a door drilled for a standard knob set typically has the holes a lever set needs. The exceptions are older doors with mortise locks, and doors whose holes were enlarged or split by past repairs. Those may need trim plates to cover the damage or a different type of set altogether.
Does a lever handle change how the door locks?
A lever handle does not change how a door locks by itself. Locking comes from the latch and the mechanism inside, chosen separately as passage, privacy, or keyed entry. A new keyed set usually comes with its own cylinder and keys, so replacing a keyed knob is a natural time to decide whether those keys should match your other locks.
Should every door in the home use the same handle style?
Every door in a home does not need the same handle style. Each door can follow how it is used: levers on the front door and bathroom, for example, and a knob on a basement door you want harder for small children to open. Keeping the same finish and rose shape throughout makes a mixed set look consistent.
What should I have ready if I ask a locksmith to change my door hardware?
Before asking a locksmith to change door hardware, have your photos and backset measurement ready, plus the door's thickness. Say whether the door should open freely, lock from inside, or lock with a key, which way it swings, and whether you want new keys or keys that match your other locks.