RedSpec Next™ + FloorChoice™
Design with confidence. Size your floor and roof systems in minutes, and know exactly how they’ll perform before the first joist is cut.
Free product sizing software for Red-I™ Joists, RedBuilt™ Open-Web Trusses, RedLam™ LVL, and Glulam Beams, built for architects and engineers who need answers fast.
What Is RedSpec Next™?
RedSpec Next™ takes the guesswork out of specifying engineered wood. Enter your spans and loads, and the software runs a best-systems analysis across RedBuilt’s product line to surface the most economical option that meets code — organized by project, so your designs stay in one place from concept to construction documents.
Built and supported by a team of industry veterans, RedSpec™ Next is the latest tool in RedBuilt’s 50+ year history of engineered wood innovation.
Built for real project workflows
- Project-based file structure keeps every design organized
- Up to five continuous spans on joists and beam
- Uniform, point, and tapered loading options
- Best-systems analysis finds the most economical alternative
- Integrated hanger selection tool
- Red-I™ I-joist analysis with web holes
- Code-prescribed concentrated load analysis
- Prints to common industry platforms for easy team collaboration
- Online video tutorials, plus local technical rep support
Click here to create a RedSpec Next™ account and start designing your next project with RedBuilt:
FloorChoice™
Know How a Floor Will Feel — Before It's Built
Code compliance tells you a floor is safe. It doesn’t tell you whether the owner will be happy standing on it. FloorChoice™ is RedBuilt’s proprietary floor performance rating system, built into RedSpec Next™, that scores a design from 0–10 so you can match performance to expectations while the project is still on paper.
A rating scale that speaks the owner’s language
Lower scores suit less demanding spaces like storage and warehouse mezzanines. Mid-range scores fit typical office, retail, and multi-family applications. Higher scores are built for spaces where minimizing vibration is critical — operating rooms, laboratories, and high-end residential.
A rating scale that speaks the owner’s language
Lower scores suit less demanding spaces like storage and warehouse mezzanines. Mid-range scores fit typical office, retail, and multi-family applications. Higher scores are built for spaces where minimizing vibration is critical — operating rooms, laboratories, and high-end residential.
Why floor vibration matters
All floors vibrate — the question is whether that vibration is noticeable enough to bother the people using the space. Building codes set the minimum bar for deflection, but a floor can meet code and still feel unsatisfying underfoot. FloorChoice™ closes that gap, giving a straightforward rating so vibration performance is a design decision, not a surprise after occupancy.
