# FritsJurgens > FritsJurgens designs and manufactures pivot hinge systems that are built into the door itself, so a pivot door needs no visible hardware, no floor spring and no frame. The systems are made in Kolham, the Netherlands, and sold worldwide to architects, interior designers, door manufacturers and dealers. The website is available in English (default), Dutch (/nl/), German (/de/), French (/fr/), Spanish (/es/), Italian (/it/) and Portuguese (/pt-pt/). Every page listed below exists in each language under that prefix. ## Pivot hinge systems - [Pivot hinges overview](https://www.fritsjurgens.com/pivot-hinge): FritsJurgens pivot door hardware creates endless design possibilities and enables unparalleled door movement for any type of pivot door - [System M+](https://www.fritsjurgens.com/pivot-hinge/system-m-plus): a pivot hinge system concealed inside the door, with adjustable control over every part of its movement, for doors from 20 to 500 kg - [System One](https://www.fritsjurgens.com/pivot-hinge/system-one): all technology entirely mortised in the door; the most compact system of FritsJurgens - [System 3](https://www.fritsjurgens.com/pivot-hinge/system3): three functions, rotation, closing and hold positions; a door with System 3 can turn through 360 degrees - [System Fx](https://www.fritsjurgens.com/pivot-hinge/system-fx): strong hold positions at every 90 degree angle; for interior doors, revolving doors and panels - [Top pivots](https://www.fritsjurgens.com/pivot-hinge/top-pivots) - [Floor plates](https://www.fritsjurgens.com/pivot-hinge/floor-plates) - [Accessories](https://www.fritsjurgens.com/pivot-hinge/accessories) ## Tools - [Selector](https://selector.fritsjurgens.com/configurations): choose the right system and set for a door by weight, dimensions and function, then request a quote or find a dealer - [Gap calculator](https://www.fritsjurgens.com/gap-calculator) - [Lateral force calculator](https://www.fritsjurgens.com/lateral-force-calculator) ## Pivot doors - [Pivot doors](https://www.fritsjurgens.com/pivot-doors): door types, materials and applications, each with its own page (interior, exterior, glass, steel, wooden, aluminium, marble, frameless, double, oversized, ceiling-high, pivoting walls, hospitality, hidden bookcase doors) ## Documentation and support - [Downloads](https://www.fritsjurgens.com/downloads): technical documentation, milling and mounting manuals, DWG and STEP files, specification texts - [Pivot door installation videos and manual](https://www.fritsjurgens.com/pivot-door-installation-video-manual): how to install a pivot door in under 30 minutes - [Frequently asked questions](https://www.fritsjurgens.com/frequently-asked-questions) - [Support](https://www.fritsjurgens.com/support) ## Inspiration - [Inspiration](https://www.fritsjurgens.com/inspiration): reference projects worldwide - [Blog](https://www.fritsjurgens.com/inspiration/blog) - [Opening up videos](https://www.fritsjurgens.com/opening-up-videos): an episodic series on how each project came into being, through the lens of an architect, an interior designer or a door manufacturer ## Company and contact - [Our story](https://www.fritsjurgens.com/our-story) - [Where to buy](https://www.fritsjurgens.com/where-to-buy): dealers and distributors by country - [Contact](https://www.fritsjurgens.com/contact-us) - [Request a quote](https://www.fritsjurgens.com/request-a-quote) ## Optional - [Sitemap](https://www.fritsjurgens.com/sitemap.xml) - [Best Pivot Door Contest](https://www.fritsjurgens.com/bpd)