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•  Create and download as many specs as you wish.
•  No e-mail address or other identification is required.

•  Create an online account to store and share your projects
•  Create, edit, and download specs
•  Protect specs against a lost Internet connection
•  Store specs online
•  Your information and specs are kept private

What makes CtrlSpecBuilder
unlike any other specifications

•  Specifications are open and non-proprietary
•  Specifications include sequences, schematics, point lists, trends, alarms, and other key requirements
•  Specifications are created in English or metric units
•  Options for BACnet, web-based UI, XML/SOAP interface, electrical demand reduction, and more
•  Based on ASHRAE Guideline 13, with options to use CSI MasterFormat 95 or 2011
•  Automatic design review which identifies possible conflicts
•  Features are based on user feedback
•  It's free

5 simple steps! Learn more
Read our Frequently Asked Questions

Tutorial: View the Tutorial

Useful links on specifications and HVAC controls.

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