RunBuilder.com is an online tool for engineers and specifiers to design the Earthbound System, a continuous tension rod system for wood framed structures. Engineered with the SlackJack holdown and ChubbySmack anchoring system.

The Earthbound SlackJack Holdown system used in wood framed and steel framed structures to restrain seismic, hurrican, snow load and wind load forces.

A seismic holdown, hurrican holdown and general shearwall holdown: an all-in-clusive holdown system for your buildings needs.

A self-tighting and shrinkage compensating hold-down solution to suppliment your wall anchor solutions.