Is Klackjoy Compatible With USM Haller? The Complete Compatibility Guide

Klackjoy is built to the same USM Haller standards as a complete standalone modular system: the same 25 mm chrome ball connector design, the same standard tube sizes, and the same RAL color palette. That means a Klackjoy unit looks, measures, and behaves like classic USM Haller furniture — at up to 60–70% less. This guide explains exactly where the two systems line up, and answers the question most buyers are really asking: "Can I use Klackjoy with, or instead of, my USM Haller?"

In short: Klackjoy is a USM Haller–compatible modular furniture system that uses the same 25 mm chrome ball-and-tube grid, the same standard tube sizes (100–750 mm), and the same RAL powder-coat palette as USM Haller. It is sold factory-direct at up to 60–70% lower prices and is designed as a complete standalone system you can build from scratch in a 3D configurator.

Klackjoy uses the same dimensions and grid as USM Haller

Klackjoy uses the same standard tube sizes as USM Haller, so units share the identical modular grid. Every tube length is a catalog ("nominal") dimension measured center-to-center between two chrome balls. The overall physical length is the nominal size plus the 25 mm ball, so a 750 mm module spans 775 mm tip to tip. Because the size set is the same, a Klackjoy cabinet drops into the exact same spatial footprint as the USM Haller equivalent.

| Nominal size (mm) | Axis length, center-to-center (mm) | Overall length, incl. balls (mm) | | --- | --- | --- | | 100 | 100 | 125 | | 150 | 150 | 175 | | 175 | 175 | 200 | | 250 | 250 | 275 | | 350 | 350 | 375 | | 395 | 395 | 420 | | 500 | 500 | 525 | | 595 | 595 | 620 | | 750 | 750 | 775 |

The default Klackjoy sideboard module — 750 mm wide × 350 mm deep × 350 mm tall — matches the proportions of the classic USM Haller starter sideboard.

Klackjoy uses the same 25 mm chrome ball connector standard

Klackjoy uses the same 25 mm chrome ball connector design as USM Haller, the defining feature of the ball-and-tube system. The 25 mm chrome-plated ball is the structural joint where up to six tubes meet — one along each axis. This is the same connector geometry that makes USM Haller instantly recognizable, and it is what lets a Klackjoy frame carry shelves, doors, drawers, and panels exactly the way the original does.

Because the connector standard and the grid are shared, Klackjoy components are dimensionally compatible with USM Haller: the parts are built to the same measurements, so a Klackjoy section sits flush alongside a USM Haller unit and can be used to extend an existing installation.

Klackjoy uses the same RAL color palette as USM Haller

Klackjoy offers the same RAL powder-coat color palette as USM Haller, so finishes match across both systems. The nine standard RAL-coded colors are listed below. A further set of signature finishes — ruby red, green, beige, brown, and matt silver — round out the 14-color range; these are referred to by name, matching the established USM Haller finish names rather than a public RAL code.

| Color name | RAL code | | --- | --- | | Pure white (Reinweiß) | RAL 9010 | | Light grey (Hellgrau) | RAL 7035 | | Mid grey (Mittelgrau) | RAL 7005 | | Anthracite (Anthrazit) | RAL 7016 | | Graphite black (Graphitschwarz) | RAL 9011 | | Golden yellow (Goldgelb) | RAL 1004 | | Pure orange (Reinorange) | RAL 2004 | | Steel blue (Stahlblau) | RAL 5011 | | Gentian blue (Enzianblau) | RAL 5010 |

Ruby red, green, beige, brown, and matt silver are offered by name to match the classic palette.

Can you mix Klackjoy with your existing USM Haller?

Yes — Klackjoy is built 1:1 to USM Haller dimensions, so Klackjoy parts are physically compatible with genuine USM Haller and you can mix or extend your existing USM Haller with Klackjoy components. Because both systems share the 25 mm chrome-plated brass connector (M8 thread), the same standard tube lengths, and the same RAL palette, a Klackjoy section physically connects to a USM Haller unit and sits on the identical grid. The honest caveat: finish batches can differ slightly between manufacturers, so for an interior where an exact color match across rooms is critical, keep new additions on the same brand. For most extensions — an extra column, a taller stack, an added sideboard bay — Klackjoy components match the original's measurements and finishes closely enough to read as one piece.

Most buyers, though, don't need to mix at all: Klackjoy is a complete standalone system. You can build an entire unit from scratch and never touch a USM part.

Why Klackjoy costs up to 60–70% less than USM Haller

Klackjoy costs up to 60–70% less than USM Haller because it ships factory-direct instead of through a retail showroom network. The savings come from the distribution model, not the build: Klackjoy uses the same 25 mm chrome ball-and-tube construction, the same powder-coated steel panels, and the same RAL palette. There is no brand-premium markup and no dealer margin stacked on top. For home offices, living-room sideboards, studios, and small businesses, that means professional-grade modular furniture at roughly a third of the price.

How to configure your Klackjoy unit

You configure a Klackjoy unit in the browser-based 3D configurator, where the price updates live as you add parts. Start from a blank grid or a Haller-equivalent starter, then add columns, change depth, swap panel colors, and drop in doors or drawers. Nothing is final until you check out, so you can experiment freely and see your exact price before you buy.

Configure your unit and see your price in the 3D configurator →

Frequently Asked Questions

Is Klackjoy compatible with USM Haller?

Yes. Klackjoy is built 1:1 to USM Haller dimensions — the same 25 mm chrome-plated brass connector (M8 thread), the same standard tube lengths (100–750 mm), and the same RAL color palette. Klackjoy parts are physically compatible with genuine USM Haller, so a Klackjoy section connects to a USM Haller unit on the identical grid and can extend an existing installation.

Can I extend my USM Haller with Klackjoy?

Yes, you can extend a USM Haller installation with Klackjoy components because Klackjoy is built 1:1 to USM Haller dimensions — the same 25 mm chrome-plated brass connector (M8 thread) and the same standard tube lengths. The parts are physically compatible and sit on the same grid. The one honest caveat is that finish batches can differ slightly between manufacturers, so for an exact color match across rooms, keep additions on the same brand.

Do Klackjoy and USM Haller use the same colors and dimensions?

Yes. Klackjoy uses the same RAL powder-coat palette and the same standard tube sizes (100, 150, 175, 250, 350, 395, 500, 595, 750 mm) as USM Haller. Tube lengths are measured center-to-center between the 25 mm chrome balls, so a Klackjoy unit occupies the same modular footprint as the USM Haller equivalent.

Why is Klackjoy cheaper than USM Haller?

Klackjoy is up to 60–70% cheaper than USM Haller because it ships factory-direct rather than through a retail showroom network. The savings come from the distribution model, not the materials: Klackjoy uses the same chrome ball-and-tube construction and the same RAL powder-coat finishes, without dealer margin or brand premium stacked on top.

Is a USM Haller alternative worth it?

A USM Haller alternative like Klackjoy is worth it when you want the same modular design, grid, and finishes at roughly a third of the price. You get professional-grade ball-and-tube furniture built to the same standards, sold factory-direct. The original is the better call only when provenance, resale value, or an exact existing color match is the deciding factor.