Cone and Tense from Formani's Designer Collaborations
Two of the door hardware collections we're asked about most often come from the same Dutch manufacturer. Tense, designed by Bertram Beerbaum, and Cone, designed by Osiris Hertman, are both Formani productions — and both reflect the studio's working motto of obsessed with details: precise welding, considered geometry, and concealed mechanics that disappear into the door.
About Formani
Formani manufactures door, window, and furniture hardware in the Netherlands using precision mechanics and welding techniques that allow the studio to design what it calls total concept collections — every piece in a line, from the smallest cabinet knob to the largest entry lever, sharing the same geometry. The result is hardware that reads as one continuous design language across an entire building rather than as a kit of related parts.
The company selects its design partners on shared values rather than name recognition: a passion for design, an eye for detail, and high standards of craftsmanship. Tense and Cone are both products of that approach.
Tense
Designed by Bertram Beerbaum. The Tense signature is a slim rectangular arm meeting a distinctive cylindrical neck — minimal but iconic, as comfortable on a heritage door as on a contemporary one. The collection extends across four door levers, cabinet hardware, appliance pulls, privacy locks, and window fittings, all riffing on the same geometry. Available in stainless steel, satin black, and bronze.
Shop Tense
Cone
Designed by Osiris Hertman, who took inspiration from the secure, deliberate handles found on a bank vault. The Cone door handle won the 2021 Red Dot Design Award for Product Design — the jury cited its combination of strict minimalism with sophisticated manufacturing quality. Hertman works in natural light and carefully chosen materials, finding the balance between luxury and tranquility. Available in PVD satin black and satin stainless steel.
Shop Cone
The making
Both collections are manufactured in Formani's own facility, where each lever is hand-finished after machining. The studio's preference for concealed fittings — no visible screws, no exposed mechanics — depends on a manufacturing tolerance most door hardware doesn't aspire to. It's the kind of detail you don't notice unless you know to look for it.
Browse the full Tense collection and Cone collection, or get in touch about specifying for a project.
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