The outer "Locking Collar" that surrounds the center ring hub is the reason our Dome Hub design can handle much more weight than other types of geodesic dome hubs.

Using only 120 lb Nylon Zip Ties, each of the Standard 4" Geodesic Dome Connectors can support more than 200 lbs in weight. The strength of the dome is limited only by the stiffness of the PVC struts, and not the hubs.

For building the larger 3v domes and the Heavy Duty Shelter Domes, we provide 250 lb. Stainless Steel Zip Ties.

The Heavy Duty Shelter Domes can support over 300 lbs from a single hub.

Our Dome Hub design can work with EMT conduit, metal pipe, and even metal rebar for building concrete domes.

250 lb. Stainless Steel Zip Ties

The Patented "Locking Collar" works by moving the fulcrum away from the center ring hub and onto the collar, where the aperture size in the outer collar "locks" the strut at the correct angle. This makes the dome much stronger than a conventional hub.

The Locking Collar makes it impossible for the strut to shear off from the hub, as the Locking Collar keeps the struts from moving beyond the angle needed to support the dome.

The Locking Collar can be made in various shapes, and is the only design on the market that can utilize metal rebar struts for building concrete domes.

Our Locking Collar is a Universal Connector that can work as an addition to any other type of Geodesic Dome Hub to provide added strength.

The strength of the Locking Collar design allows us to use the most simple type of hub possible, such as a center ring with the struts connected together by zip ties. This type of hub would not be strong enough to build a geodesic dome without the Locking Collar.

The "Locking Collar" Geodesic Dome Hub has been determined to be a novel and useful means for geodesic dome construction, and has been patented as a new invention in 4 Countries: The United States, the United Kingdom, Australia, and New Zealand.

Other International Patents are in progress.