Specifying Made Simple

RedSpec™ is a convenient, user-friendly design program that lets you quickly and efficiently create floor and roof design specifications using Red-I™ I-joists, RedBuilt™ open-web trusses, RedLam™ LVL, glulam beams and dimensional lumber.

Check out the brief introductory video tutorials to the right to gain general knowledge of the layout, flow, and capabilities of RedSpec™.

RedSpec™ features include:

  • Project-based file structure to organize your designs
  • Up to four continuous spans on joists and beams
  • Uniform, point, and tapered loading
  • "Best systems" analysis to find the most economical alternative
  • Integrated hanger selection tool
  • Analysis of Red-I™ I-joists with web holes
  • Code-prescribed concentrated load analysis
  • FloorChoice™ proprietary floor performance rating system

RedSpec™ is provided free of charge to registered users.

Download RedSpec™ Now

If you already have RedSpec™ installed, click here to upgrade to the latest version.

For the latest Release Notes, click here: RedSpec™ Release Notes

For support contact us by e-mail at or by phone at 866.859.6757.