A new “invisible” jointing system which uses magnets has allowed a Harpenden fine furniture maker to broaden its design criteria.

Tagg Furniture now uses the Swiss-made Lamello Invis system instead of traditional KD fittings on many of its jobs, which include one-off pieces for private and commercial clients.

Roland Tagg, the company’s owner, said: “Because we can now join items invisibly, we are not stuck with restraints on the method of construction. You can try all you can to disguise joins, but if you can’t see them in the first place it’s a far better design solution.”

Mr Tagg said the technology comes in useful when there are access problems with large pieces of work, such as exhibition furniture, as the joints are detachable.

Invis, supplied by Hemel Hempstead-based Steve Boughton Services, is based on a magnetic screw connector which attaches and detaches, with a rotary magnet applied in key locations to form a mechanically stable joint.

The screw of the joiner is connected to a support magnet that is triggered to turn by an external rotating magnetic field. A hand-held battery-driven Invis actuator is used in the glueless joining process.