Most shelving solutions ask you to commit before you can even start. Drill a hole here, anchor a bracket there, then live with the consequences if you change your mind six months later. The TAB, designed by Berlin-based architect Michael Hilgers for housewares brand Purstahl, takes a different approach entirely. It clamps onto any vertical panel up to 38mm thick, no drilling, no damage, and releases just as easily when you want to move it.
The form itself is the most unexpected part. Where most clip-on accessories default to a rectangle, the TAB is a circle, a 30cm disc of 2mm aluminum with a fine-textured powder coating. That’s a small but meaningful choice; a circular shelf sitting against the side of a bookcase or cabinet reads more like a deliberate design detail than a functional add-on. It comes in two versions, TAB_left and TAB_right, which simply determine which direction the shelf extends from the clamp.
Designer: Michael Hilgers for Purstahl
The thinness of the aluminum is doing more work than it looks like. At 2mm, the shelf sits flush and close to the panel face rather than jutting out awkwardly, which matters in tighter rooms. The powder coating adds color without bulk, and Purstahl offers enough options to match or contrast with the furniture underneath. That flexibility is part of the appeal: the TAB can read as an accent piece or disappear into the background, depending on the color you pick.
What makes it genuinely interesting is how widely the word “panel” applies. Hilgers frames his approach as “pragmatic design,” meaning objects that work with what already exists rather than replacing it. The TAB clamps onto a bookshelf side, the edge of a wardrobe, a balcony railing, a freestanding room divider, anywhere a flat vertical surface falls within that 38mm thickness range. That’s a broader set of possibilities than a 30cm disc might initially suggest.
The one thing Purstahl doesn’t mention is a maximum load rating, which is a fair thing to wonder about at €79 per unit. A small plant, a few magazines, or an espresso cup are probably fine. A heavy ceramic pot or a stack of hardcovers is a less certain proposition, and it would help to know the limits before buying. The screw clamp mechanism does allow for repositioning, so there’s room to adjust if the shelf shifts under load.
Hilgers has built a consistent body of work around the idea that existing furniture doesn’t need replacing, only rethinking. The TAB fits neatly into that logic. It’s a small, unhurried intervention in a room you already have, and the more interesting question is less about whether it works and more about how many panels around your home you’d actually want to put it on once you start looking at them differently.
