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32mm Increments

All 32mm system components are located multiples of 32mm apart and sized in increments of 32mm. More often than not, increments are a multiple of 32mm plus or minus a constant (32m +/-). The constant provides needed/desired clearances between components.

Following are a number of example increment charts and formulas. Inch equivalents are rounded to the closest 1/16". Divisibles (/d) are handy when you want to divide a space equally.

Multiples of 32mm

m32minch/dm32minch/d
4128mm5-1/16"2 15480mm18-7/8" 3,5
5160mm6-5/16" 16512mm20-3/16" 2,4,8
6192mm7-9/16"2,3 17544mm21-7/16"
7224mm8-13/16" 18576mm22-11/16"2,3,6,9
8256mm10-1/16"2,4 19608mm23-15/16"
9288mm11-5/16"3 20640mm25-3/16" 2,4,5,10
10320mm12-5/8"2,5 21672mm26-7/16" 3,7
11352mm13-7/8" 22704mm27-11/16"2,11
12384mm15-1/8"2,3,4,623736mm29"
13416mm16-3/8" 24768mm30-1/4" 2,3,4,6,8,12
14448mm17-5/8" 2,7 25800mm31-1/2" 5

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Overlay Face Heights

All overlay and full inset door and drawer front heights (and widths) are always some multiple of 32mm tall minus the gap you want between the faces. Neither the panel design (True32, System32, etc.), or the amount of overlay (full, half, no rail inset, etc.), change this (railed inset is the only exception). A 3mm (~1/8") gap is typical.
m32m-3inch m32m-3inch
4125mm4-15/16"15477mm18-3/4"
5157mm6-3/16"16509mm20-1/16"
6189mm7-7/16"17541mm21-5/16"
7221mm8-11/16"18573mm22-9/16"
8253mm9-15/16"19605mm23-13/16"
9285mm11-1/4"20637mm25-1/16"
10317mm12-1/2"21669mm26-5/16"
11349mm13-3/4"22701mm27-5/8"
12381mm15"23733mm28-7/8"
13413mm16-1/4"24765mm30-1/8"
14445mm17-1/2"25797mm31-3/8"

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Overlay Hinge Hole Placement

Like overlay face height, this applies to full or half overlay and full inset cabinet styles. When using system registered faces, hinge cup holes are always a multiple of 32mm (32m) + 16mm - 1/2 gap from the top and bottom of the door. When using shifted registration, hinge holes are always 32m - 1/2 gap from the top and bottom of the door. The example uses a typical 3mm gap.
msystem 32m + 16 - 1/2gshifted 32m - 1/2g
146.5 32 + (16 - 1.5)30.5 32 - 1.5
278.5 64 + 14.562.5 64 - 1.5
3110.5 96 + 14.594.5 96 - 1.5
5142.5 128 + 14.5126.5 128 - 1.5

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Railed Inset Face Heights

Railed inset door and drawer front heights (and widths) are always some multiple of 32mm tall minus a constant. The constant is two times the gap you want between the faces and the rails (and panels) plus your panel/rail thickness (PT). If the rails center on system holes (VS between/shifted), and we travel from system hole to system hole, its 1/2 PT + gap + face height + gap + 1/2 PT = a multiple of 32mm (32m). The math is 32m - (2 x g + PT) = face height

The chart is based on 19mm (3/4") PT and 3mm (~1/8") gaps. The math is 32m - (2 x 3 + 19) = face height, i.e. 32m-25.
m32m-25inchm32m-25inch
4103mm4-1/16"15455mm17-15/16
5135mm5-5/16"16487mm19-3/16
6167mm6-9/16"17519mm20-7/16
7199mm7-13/16"18551mm21-11/16
8231mm9-1/8"19583mm22-15/16
9263mm10-3/8"20615mm24-3/16
10295mm11-5/8"21647mm25-1/2
11327mm12-7/8"22679mm26-3/4
12359mm14-1/823711mm28
13391mm15-3/824 743mm29-1/4
14423mm16-5/825 775mm30-1/2

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Railed Inset Hinge Placement

The hinge cup hole location for system registered faces is a multiple of 32mm (32m) + 16 - (1/2PT + gap) from the top and bottom edge of the door. Shifted registration is 32m - (1/2PT + gap). The chart is based on 19mm (3/4") PT and 3mm (~1/8") gaps.

msystem 32m + 16 - (1/2PT + g)shifted 32m - (1/2PT + g)
135.5 32 + 16 - (9.5 + 3)19.5 32 - (9.5 + 3)
267.5 64 + (16 - 12.5)51.5 64 - 12.5
399.5 96 + 3.583.5 96 - 12.5
4131.5 128 + 3.5115.5 128 - 12.5

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Drawer Box Heights

Drawer box heights can vary by panel design and slide/personal choice, but they are always sized in increments of 32mm. While some of my drawings show drawer height to the closest multiple of 32mm (32m) +/- a constant, this example shows drawer box height as the face multiple minus a constant (32m-67). The example chart works with the FO Undermount (shifted registration) example drawing.

mface 32m-3box 32m-67mface 32m-3box 32m-67
4125mm61mm8253mm189mm
5157mm93mm9285mm221mm
6189mm125mm10317mm253mm
7221mm157mm11349mm285mm

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Overlay Balanced Panel Depth

Balanced panel depth is when system rows are some multiple of 32mm apart and 37mm from the front and back of the panel. Balanced panel depth is optional, only the front 37mm row spacing is important. Balanced panel depth has drawbacks, e.g. neither 588 (23-1/16, too shallow for appliances) or 616 (24-5/16, too wide for efficient use of material) are ideal for kitchen base cabinets.
37 + (n x 32) + 37, i.e. 32m + 74 or m+74, = balanced panel depth
mpanel m+74 inchrows 32minch mpanel m+74 inchrows 32m inch
21385-7/16642-1/21349019-15/1641616-3/8
31706-11/16963-3/4 1452220-9/1644817-5/8
42027-15/161285-1/161555421-13/1648018-7/8
52349-3/161605-5/161658623-1/1651220-3/16
626610-1/21927-9/161761824-5/1654421-7/16
729811-3/42248-13/16 1865025-9/1657622-11/16
83301325610-1/161968226-7/860823-15/16
936214-1/428811-5/162071428-1/864025-3/16
1039415-1/232012-5/82174629-3/867228-7/16
1142616-3/435213-7/82277830-5/870427-11/16
1245818-1/1638415-1/82381031-7/873629

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Shared Panel Box Heights

While modular full-overlay boxes are always a multiple of 32mm tall (and wide), half-overlay and railed-inset cabinets are always a multiple of 32mm plus panel thickness on the outside and a multiple of 32mm minus panel thickness on the inside, i.e. all panel (and rail) center-lines are a multiple of 32mm apart. The measurements apply to cabinet width and/or height (width is optional).

Example panel thickness (PT) is 19mm (~3/4").
9.5 + (n x 32) + 9.5, i.e. 32m + 19 or m+19, = box height (and width)

moutside m+19inchinside m-19inch/dmoutside m+19inchinside m-19inch/d
1240316-7/836514-3/82,3,4,62375529-3/471728-1/4
1343517-1/839715-5/8 247873174929-1/22,3,4,6,8,12
1446718-3/842916-7/82,72581932-1/478130-3/45
1549919-5/846118-1/83,52685133-1/2813322,13
1653120-7/849319-7/162,4,82788334-3/484533-1/43,9
1756323-3/1652520-11/16 289153687734-1/22,4,7,14
1859523-7/1655721-15/162,3,6,92994737-5/1690935-13/16
1962724-11/1658923-3/16 3097938-9/1694137-1/162,3,5,6,10,15
2065925-15/1662124-7/162,4,5,1031101139-13/1697338-5/16
2169127-3/1665325-11/163,7 32104341-1/16100539-9/162,4,8,16
2272328-7/1668526-15/162,11 33107542-5/16103740-13/163,11

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Full Inset Box heights

Full inset cabinets (shared panel) are always a multiple of 32mm plus gap plus 2 x panel thickness on the outside and a multiple of 32mm plus gap on the inside, i.e. the center of all gaps is a multiple of 32mm apart..

If we travel from the top to the bottom of the box (or vice versa), its PT + 1/2 gap + (n x 32) + 1/2 gap + PT (PT + gap + face + gap + PT). The measurements apply to cabinet width and/or height (width is optional).

Example panel thickness (PT) is 19mm (~3/4") and gap (g) is 3mm (~1/8).
19 + 1.5 + (n x 32) + 1.5 + 19, i.e. 32m + 41 or m+41 = box height (and width).
Inside height (and width) is (n x 32) + g, e.g. m+3.
moutside m+41inchinside m+3inch/dmoutside m+41inchinside m+3inch/d
1242516-3/4387 2,3,4,62377730-9/16739
1345718419 2480931771 2,3,4,6,8,12
1448919-1/4451 2,72584133-1/8803 5
1552120-1/2483 3,52687334-3/8835 2,13
1655321-3/4515 2,4,890588335-5/8867 3,9
1758523-1/16547 2893736899 2,4,7,14
1861724-5/16579 2,3,6,92996938-1/8931
1964926-9/16611 30100139-7/16963 2,3,5,6,10,15
2068126-13/16643 2,4,5,1031103340-11/16995
2171328-1/16675 3,7 32106541-15/161027 2,4,8,16
2274529-5/16707 2,11 33109743-3/161059 3,11

Example image is a 20 increment box (20 x 32 + 41 = 681) with four five increment faces (20 / 4 = 5, one of the /d options in the chart). While not evenly divisible, 23 increments/30-9/16" is as close as you'll get (w/o tweaking reveals/breaking modularity) to a standard American base cabinet box height (30.5") and 5,6,6,6 / 5,9,9 increment drawer layouts are nice.
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