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Systems

There are numerous approaches to 32mm cabinetmaking. This site is focused on modular, fully parametric, 32mm methods that can be applied to every cabinet component. Most of the 32mm systems that have been published only apply the system to a limited number of components. Much of the work on this site attempts to fill in the blanks. The goal is to include all known systems, what you can and cannot do with them, and how they relate to modular 32mm cabinetmaking.

System modularity has three aspects; 32mm hole spacing to accommodate 32mm hardware (system rows), doors with hinge cups an equal distance from the top and bottom of all doors (doors), and drawer faces that are all an equal distance from the top and/or bottom of the drawer boxes (drawers).
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Cabinotch

CabinotchCabinotch's default Full Access (image source) cabinets are based on True 32 49.5/46.5 start 3/0 reveal modular panels. System rows start at 37 and are a multiple of 32mm apart. Faces are a multiple of 32 - 3 gap tall. Unfortunately, the bottom drawer slide is moved up 10mm (like Process 32's +12) and their wood drawer boxes are (like Process 32's) sized in inches, i.e you cannot use the system to register drawer faces to boxes.

32mm system rows and doors
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CabParts

CabPartsCabParts uses 32mm system rows 37mm from the front and some multiple of 32mm apart. The only other things that are metric in their system are the bottom system row start hole (42 typ, or 36.6 ) and the bottom hinge cup hole on doors (122 typ, 58 or 83). System row and hinge cup spacing from the top of the panel/door vary and are never the same as the bottom spacing. Door and drawer face sizing is inches plus 1/8, 3/8 or 7/8. Presumably this all works out in tandem with their 1/8 gaps and top reveals (0 bottom), but most of them have no consistent relationship to the 32mm spaced slides and hinges. The image is from their 2/1/16 catalog.

32mm system rows
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Jim Christ

Jim ChristJim Christ is the author of European Cabinetry: Design & Construction (1990, ISBN 9780806969589). Jim uses 16mm stock and a balanced 8/8mm top/bottom, 37/37mm front/back panel. At first glance this looks like System (Varianta) 32 using 16mm (5/8") material. While that would be a 32mm system panel, a key difference is that his system rows are not a multiple of 32mm apart (image is from pg 73). The problem with this (apart from it breaking the row spacing rule) is that you cannot use a 32mm boring machine or jig to drill the construction and rear drawer slide mounting holes. Nothing else in his system uses 32mm multiples or increments.

32mm system row spacing is not a multiple of 32mm
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KISS II

KISS IIKISS II (402.3KB pdf, 2007) is Grass's 32mm system and was written by Joel Ketner. It uses balanced 35/35mm top/bottom panels and system registered 32mm increment overlay faces which results in 4.5/4.5mm top/bottom reveals. Individual and side joined boxes are modular, top joined boxes are not (9mm gap between stacked box faces).

32mm system rows, doors and drawers

See also:
Full Overlay: Other Panel Designs
Drawers: Increased Reveal
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Kurka

KurkaWoodhaven's discontinued 786 Kurka Jig is setup to make balanced panels with 48mm top/bottom start holes. It can drill three system rows some multiple of 32mm apart and the back row could be 37 from the back of the panel if you wanted. The jig can be used to make modular full overlay cabinets with 1.5mm top/bottom reveals. The cabinetmaking method presented in the owners manual (859KB pdf, image source) has all sorts of inconsistencies and has nothing to do with any modular 32mm system.

32mm system rows (manual)
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Philip Lundgren

Philip LundgrenA Curriculum for Teaching 32mm Cabinet Construction (2.9MB pdf) was a four page article, in Techdirections magazine (2001), based on Philip Lundgren's 1998 thesis. As drawn, drawer faces have no consistent relationship to the slides and hinge cup boring is unbalanced (84mm bottom, 77.6mm top). The only 32mm aspects of the method presented are the system rows. The rows are 37mm from the front, 480mm apart, and 73mm from the back. While a 4mm from the bottom start hole is specified, the first used hole is 36mm (4 + 32). Balancing the panel (t/b) and using 32mm increment faces would create cabinets with 1mm larger top/bottom reveals than KISS II cabinets (35/35 starts).

32mm system rows
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Plus 32

Plus 32Plus 32 allows any full overlay 32mm system panel. My primary purpose was to find an alternative to straight 32mm system drawer layouts. Straight layouts allow top (w/ 32m sides) or bottom face registration, but waste a lot of space. Plus 32 reduces waste and moves all waste to the bottom of the cabinet. The tradeoff is bottom registration, Plus 32 layouts only provide top registration. Some metal drawer sides are probably not suited to top registration (Metabox w/ gallery rails is). I also don't like layouts where Plus 32 would make the bottom box 32mm smaller than the one above.

The example drawing starts with a half overlay example. For the Plus 32 drawing I moved the box bottom up 11mm (11>0r), used a 32mm smaller bottom drawer box (now the same size as the one above) and moved it up 32mm. All drawer boxes are still 24mm below the top of the drawer faces (24 TFR).

32mm system rows, doors and drawers

See also:
Styles: Full Overlay
Drawers: Plus 32
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Process 32

Process 32There have been at least two versions of Blum's Process 32. The '93 Process 32 was Metabox centric and used incremental panel heights and depths. Panel heights were a multiple of 32 with 64mm top/bottom start holes. System rows were 37 from the front, some multiple of 32mm apart and 83mm from the back. Faces were flush to the top and bottom of the panels. Face to box registration was inconsistent because bottom and full height faces were a multiple of 32mm tall and all other faces were a multiple of 32mm - gap. Using all 32m - g faces is the only way this could be a modular system.

Blum's '04 Process 32 (1.8MB pdf) uses unbalanced panels with 56.5mm top / 46.5 bottom start holes and shifted 32mm increment overlay faces which results in 10/0mm top/bottom reveals (image). Individual and side joined boxes are modular, top joined boxes are not (10mm gap between stacked box faces).

While system rows are a multiple of 32mm apart, box depths are not in 32mm increments. Here, and elsewhere, Blum has opted for American dimensions, e.g. 12 and 24" deep boxes. Only their bottom mount drawer layouts register the drawer faces to boxes consistently, the rest of their layouts shift the bottom drawer slide up 12mm. While Meta and Tandem box drawer sides are in increments of 32mm tall, wood drawers are sized in 2" increments.

32mm system rows and doors (most drawer layouts are not)

See also:
Full Overlay: Other Panel Designs
Drawers: Plus 12
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Scott Grove

Scott GroveIn Throw away your tape measure – Go 32mm system (2016), Scott includes a drawing that appears to be KISS II with measurements rounded to full millimeters, The door faces are 32m - 4 (gap + 1) and the drawer faces are 32m - 3 (gap), reveals are 5 instead of 4.5, hinge cups are 78 instead of 78.5, and the drawer face offset is 31 instead of 30.5.

If that 31 offset is consistent, the bottom drawer would have a 4mm reveal (35 start - 31 offset = 4) which is 1mm less than his 5mm door reveal. Going a step further, a stack of 32m - 3 drawer faces with 3mm gaps only leaves 9mm, e.g. 4.5mm top and bottom (VS 5 in the drawer/door stack). To get a matching 5mm reveal, a three drawer stack would require 2.5mm gaps and a four drawer stack 2.67. While this may be doable, the 32mm system requires accuracy and starting with fuzzy math makes no sense.

32mm system rows (doors and drawers off by .5-1mm)
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Sys32+

Sys32+Sys32+ is my extrapolation of System (Varianta) 32's 32mm multiple (32m) + panel thickness (PT) box heights. The only possible route to 32mm system cabinets is half overlay or railed inset faces and shared panel construction. This is the ultimate 32mm system in that the centerline of all carcase components is a multiple of 32mm apart. All carcase componets are either 32m + PT (long/exterior) or 32m - PT (short/interior) long. Panels have balanced start holes and can have system (SAC) or shifted face registration. An extension of railed inset is full inset which uses 32m + 2*PT + g carcase heights and standard (32m - g) overlay face heights (railed inset widths).

32mm system rows, doors and drawers

See also:
Styles: Half Overlay   Railed Inset
Panels: Shared   Applied Ends
Drawers: Center Indexing
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System 32

System 32System 32 is Hettich's 32mm system and is one of the the oldest 32mm systems. What is currently available on Hettich's System 32 (pdf below) is from the front of one of their catalogs (2017). What is presented is a fully balanced panel, system rows are 37mm from the front and back of the panel (balanced rows) and the system row start holes are 1/2 the panel thickness (e.g. 9.5) from the top and bottom of the panel (balanced start holes). The top and bottom system holes are used as construction holes (SAC). I'm not aware of any material that covers how door and drawer faces integrate into this system. The only possible/logical/workable paths to modular 32mm cabinetry is half-overlay or inset cabinetry.

32mm system rows (doors and drawers not covered)

5093_system_32.pdf System 32.pdf (260KB)
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System Varianta 32

System Varianta 32System Varianta 32 is Hafele's 32mm system. I believe it is the same/similar to Hetich's System 32, but the image is all that I have been able to find from Hafele's old training material (1985-89 VHS/booklet). It sure looks like the same fully balanced (37/37 x 9.5/9.5) panel. I'm not aware of any material that specifies how door and drawer faces integrate into this system, but there is a Hafele drawing (taken from Jim Christ's book) showing Shared Panel construction, i.e. half-overlay or inset cabinetry.

32mm system rows (doors and drawers not covered)
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The Pearls

The PearlsI believe Blum's The Pearls: Increasing Productivity in 32 Millimeter Cabinetmaking, written by Charlie Karp, predates all of the Blum Process 32 manuals. While the system starts with a balanced (12.5mm t/b start holes) panel and system registered 32m - g faces (14mm t/b reveals), the addition of a "B rule" messes it up. The B rule is that 14mm get added to the bottom of doors and bottom drawer faces (14/0 t/b reveals). Face sizes are no longer incremental and hinge cup boring is unbalanced (78.5/92.5 t/b). The presented drawer face registration is inconsistent because it only considers the bottom drawer face reveal. Because the presented drawer boxes are in 32mm increments, the top drawer face reveal is a constant, i.e. top registration works.

32mm system rows

The Pearls pdf (923.2KB, includes a few pages from "the stick" manual)
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True 32

True 32Bob Buckley wrote True32 Flow Manufacturing (1999, ISBN 9780967356105). Other folks I remember being associated with True 32 are Mark Poole and Keith Hill.

True 32 allows for any fully modular (i.e. stackable and a multiple of 32mm tall) full overlay boxes. I believe True 32 was the first to use shifted face registration and unbalanced modular panels (faces flush to the bottom of the cabinet). The 49.5/46.5 and 32.5/30.5 (w/ 3mm gaps) top/bottom start hole panels provide stackable boxes with 3/0 top/bottom reveals. Blum's Process 32 is the only other system I know of that has full overlay faces flush with the bottom of the box (56.5/46.5 starts).

True 32 favors straight 32mm system drawer layouts without any tweaks to reduce wasted space. True 32 panels do not have construction holes and cabinets are assembled with staples and screws. While I know Bob considered the possibility of making cabinet widths in 32mm increments, I don't think he ever pursued it.

32mm system rows, doors and drawers

See also:
Full Overlay: Modular Boxes
Drawers: Shifted Registration
True32 Ten Commandments
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Veritas 32

Veritas 32Lee Valley Tools Veritas 32 drilling jigs are sold under the heading Veritas System 32 Cabinetmaking System and their instruction booklet (459.6KB pdf, image source) describes System 32 (pg 4, 32m + PT tall, 32m + 2*37 wide). The Veritas 32 jig appears, through the use of adjstable gauge heads, able to make any 32mm system cabinet.

32mm system rows (doors and drawers not covered)
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