What is the 32 mm System? Hole Lines and Grid Dimensions in Cabinetry Explained

January 6, 2026

The 32 mm system is an international standard in cabinetry that defines a fixed grid pattern for rows of holes in cabinet sides. The distance between the centres of two holes is exactly 32 mm. This system enables the standardised and precise installation of furniture fittings, runners, hinges, and shelf supports.

What is the 32 mm System Exactly?

The 32 mm system functions much like graph paper for a technical draughtsman: it provides a reliable structure for an empty cabinet carcass. This grid dimension was developed to standardise industrial furniture production and accelerate assembly. Instead of having to measure individual drill holes precisely for every single fitting, joiners and installers rely on a continuous row of holes.

Almost all modern furniture fittings – from the cruciform mounting plate of a hinge to the cabinet profile for complex drawer systems – are designed so that their fixing points correspond precisely to this 32 mm grid.

Key Dimensions and Standards in the Grid System

The system is based on strict geometric specifications that are adhered to during the manufacture of cabinet side panels (typically made of chipboard or MDF):

Hole spacing: Exactly 32 mm from hole centre to hole centre (vertically).
Hole diameter: Standard 5 mm. This size suits classic shelf studs and Euro screws. A diameter of 3 mm is sometimes used when conventional wood screws and furniture screws are intended for fastening.
Front setback dimension: The distance from the front edge of the cabinet side to the centre of the first row of holes is a standardised 37 mm.
Rear setback dimension: The distance to the back panel is variable, but in machine manufacturing it is often also calculated in 32 mm increments from the front edge.

Applications: The 32 mm System in Hardware and Runners

The consistent use of the grid system is especially evident in cabinet interiors. When a runner system or a waste sorting unit is installed in a kitchen, the screw-fixing positions on the cabinet profiles line up exactly with the 32 mm spacing. This means the rails can be aligned horizontally along the row of holes and screwed in place without needing a spirit level or complex marking out.

Other components also benefit from this standard:

Hinges: The mounting plates for concealed cup hinges are screwed at 32 mm intervals.
Connecting technology: Every standardised furniture connector (such as cam and dowel fittings or Minifix) is designed for spacing that integrates seamlessly into the system.
Additional functions: Screw-on door dampers or brackets for furniture locks also utilise the pre-drilled 5 mm holes for a secure hold.
Base construction: Even underneath the cabinet, the mounting plates for furniture legs are frequently stamped to be compatible with standard grid dimensions.

Advantages of the 32 mm Grid for Installers

The greatest technical benefit is absolute modularity. A shelf can be adjusted in height at any time simply by inserting the shelf supports 32 mm or 64 mm higher up. Likewise, additional drawers can be retrofitted later on, as the required fixing points are already present in the carcass. For manual work in the workshop or on-site, carpenters use dedicated drilling jigs that guide the 32 mm pitch and 37 mm margin precisely.

Related Terms in Cabinet Making

Euro screw: A specialised fixing screw with a blunt thread, optimised for the 5 mm drill holes of the 32 mm system.
Carcass: The main cabinet body without doors, drawer fronts, or internal fittings, into whose side panels the rows of holes are drilled.
System hole: A machine-drilled hole that corresponds precisely to the 32 mm system standards.