Knob and pull placement

Two holes in a door somebody has just spent a weekend making, and they are not adjustable afterwards. Centre to centre is the only dimension that matters for boring — print it below at true size before you drill.

5 1/16"9 1/2"6"24"
Hardware
Going on
in
in

The dimension between the two screw holes, not across the pull

in
Vertically

Mark the bores at

Left bore
9 1/2" across, 3" down
Right bore
14 1/2" across, 3" down

Centres

5 1/16"

Wood outside each bore

9 1/2"

Checks

All 2 checks passShow the numbers
  • The bores clear the edges — passes9.48" of wood outside each bore.
  • The setback clears the edge — passesCentred on the 6" height, so 3" down.
Check this first
0123456

Put a tape on the printed ruler. If it does not read exactly 6 inches, the print was scaled — set the print dialog to 100% or “Actual size” and print it again. Do not cut wood from a template that failed this.

Bore centres
05 1/16"

Mark both bores at this exact spread. A run of drawers bored to two different centres shows at a glance.

Size, by convention

A pull spanning about a third of the width looks right, which on 24" is 8". The nearest stocked centres to that is 8".

A convention rather than a rule — there is no authority to cite for it. What is worth trusting is the list of sizes, because the hardware only comes in those. A wide drawer often takes two pulls rather than one enormous one.

128mm is not 5 inches

It is 5.04", a thirty-second over. Centre to centre is the only dimension that matters for boring, cabinet hardware is sold in both unit families, and the packet states whichever the maker thinks in — 96mm, 128mm and 160mm sit deceptively close to 3 3/4", 5" and 6 1/4". A run of drawers bored for one and fitted with the other is out by a thirty-second at every hole, which is enough to see and enough to bind the screws.

Quoted as a decimal rather than a fraction on purpose: the difference being described here is finer than the sixteenth the rest of the site rounds to, and 5 1/16" would round it away.

Stocked centres

1"suits a front about 3" wide
1"
2 1/2"suits a front about 7 1/2" wide
2 1/2"
3"suits a front about 9" wide
3"
3 3/4"suits a front about 11 1/4" wide
3 3/4"
96mmsuits a front about 11 5/16" wide
3 3/4"
4"suits a front about 12" wide
4"
128mmsuits a front about 15 1/8" wide
5 1/16"
5"suits a front about 15" wide
5"
160mmsuits a front about 18 7/8" wide
6 5/16"
6 1/4"suits a front about 18 3/4" wide
6 1/4"
192mmsuits a front about 22 11/16" wide
7 9/16"
8"suits a front about 24" wide
8"
256mmsuits a front about 30 1/4" wide
10 1/16"