This is the article most designers wish they didn't need. Hardware should be straightforward. But measurements get botched on production sites and in DIY remodels often enough that we've made a guide for new buyers and one for installers.
Here's everything you need to know to specify and order hardware that fits the cabinetry you have, the first time.
The single most important measurement: center-to-center
Every cabinet pull is sold by its center-to-center distance — the distance from the center of one mounting hole to the center of the other. Not the overall length of the pull. This is the only measurement that determines whether a pull will fit your existing cabinetry.
Standard center-to-center sizes for cabinet pulls are: 3", 3¾", 5", 6¼", 7", 8", 12", 18". For installations going into existing pre-drilled cabinetry, this is the only number that matters. The pull's overall length and shape are aesthetic choices; the c-to-c is the technical fit.
How to measure your existing cabinetry
If you're replacing pulls (not knobs) and there are already two holes in each drawer front:
- Use a steel tape measure or ruler. Cloth measures stretch and lie.
- Measure from the center of one hole to the center of the other. Don't measure edge-to-edge.
- Take three measurements across three drawers and confirm they all match. Older cabinetry sometimes drifts by 1/16" between drawers; if it's drifted by more than 1/8", you'll need either pulls with adjustable bases or new holes.
How to size pulls for new cabinetry
If you're specifying for new cabinets — no holes drilled yet — you have full latitude. The rule designers use is the one-third rule: a pull should be roughly one-third the width of its drawer.
| Drawer width | Recommended pull (c-to-c) |
|---|---|
| 12" – 18" | 3" or 3¾" |
| 18" – 24" | 5" or 6¼" |
| 24" – 30" | 7" or 8" |
| 30" – 36" | 8" or 12" |
| 36" – 48" (pantry) | 12" or 18", or two 7"–8" pulls |
Wider drawers can take a single oversized pull (an 18" appliance pull centered) or a pair of standard pulls evenly spaced. Two pulls reads more residential; a single oversized pull reads more designer.
Knobs vs. pulls — when to use which
Standard practice in a kitchen is knobs on doors and pulls on drawers. There's no rule against mixing — knobs on small drawers, pulls on tall doors are both common — but the door-and-knob, drawer-and-pull pairing is the safe default that almost always reads right.
Knobs are sized by diameter, not center-to-center. Standard kitchen knob diameters are 1", 1¼", and 1½". For most cabinet door scales, 1¼" feels right. 1" reads small on anything wider than 18". 1½" starts to feel oversized on standard cabinet doors but is correct for tall pantry doors.
Backplates: the trick most homeowners miss
If your existing cabinetry has holes drilled at non-standard centers — common in homes built before 1990 — backplates are the fix. A backplate is a decorative plate that mounts behind the knob or pull, hiding the existing holes and creating a new mounting point. Most major hardware lines offer backplates that match each pull or knob style.
If you're downsizing from pulls to knobs (replacing two-hole pulls with single knobs), a backplate is mandatory: it covers the old holes and gives the new knob a mount point.
Pull placement on doors
For pulls on tall doors (taller than 30"):
- Upper cabinet doors: pull placed at the bottom, ~2½" up from the bottom edge.
- Lower cabinet doors: pull placed at the top, ~2½" down from the top edge.
- Pantry/full-height doors: pull centered vertically on the door, OR placed at standing-handle height (38"–42" from floor) for ergonomics.
Order ten percent extra
Hardware finishes can vary subtly between production batches. If you order exactly the count you need, and you crack a finish during install or change a layout mid-renovation, the replacement piece you order three months later may read slightly different from the rest. Ten percent extra protects against this and against installation damage.
Have a measurement edge case we didn't cover? Email help@topknobshardware.net with photos and we'll size it for you.

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