I-Built's Hyne Design 7.7 (HD7) is an industry standard for alternative structural timber design. It delivers innovative design procedures, a powerful graphical interface and the ability to command complex load functions. 

HD7 covers all of the products available in the I-built engineered timber range including: NZ made structural LVL 11 & 13, Hyne beam 15C & 21C and Hyne Timber LGL.

Additional features of the HD7 software include printable technical data sheets, joist span tables, MSDS sheets, installation guides and fixing connections as well as certification, full deflection and engineering reports which gives you even more reasons to use HD 7.7 as your design tool of choice.