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Specifying & Design Tools

Download the RedSpec Free Product Sizing Software

RedSpec

RedBuilt Open Web Trusses, Red-Lam™ LVL, and Red-I™ joist analysis and single member sizing software
FloorChoice™ Ratings Give You an Easy-To-Understand Analysis of How a Floor Will Perform or “Feel.”

FloorChoice

Floors have feelings too. RedBuilt’s Floor Performance Rating system helps you understand them.
Building Information 3D Model

BIM Library

Download BIM Objects for our Open-Web trusses and Red-I joists.
AutoCAD Rendering of Trusses

AutoCAD Details

Download AutoCAD details for our products to assist with detailing.

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Red-I DTL 25 Sound Isolation Detail 4

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

232kb DWG

Updated Aug 2025

VIEW

21kb PDF

Updated Aug 2025

Red-I DTL 24 Sound Isolation Detail 3

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

234kb DWG

Updated Aug 2025

VIEW

19kb PDF

Updated Aug 2025

Red-I DTL 23 Sound Isolation Detail 2

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

240kb DWG

Updated Aug 2025

VIEW

23kb PDF

Updated Aug 2025

Red-I DTL 22 Sound Isolation Detail 1

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

137kb DWG

Updated Aug 2025

VIEW

27kb PDF

Updated Aug 2025

Red-I DTL 21 Wind/Seismic Connections Wall Tension Tie — HD Connections

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

365kb DWG

Updated Aug 2025

VIEW

19kb PDF

Updated Aug 2025

Red-I DTL 20 Wind/Seismic Connections Tie at Butting Joists

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

312kb DWG

Updated Aug 2025

VIEW

14kb PDF

Updated Aug 2025

Red-I DTL 19 Wind/Seismic Connections Wall Tension Tie With Straps

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

295kb DWG

Updated Aug 2025

VIEW

14kb PDF

Updated Aug 2025

Red-I DTL 18 Roof Details – Bevel Cut or Fire Cut

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

102kb DWG

Updated Aug 2025

VIEW

9kb PDF

Updated Aug 2025

Red-I DTL 17 Roof Details – Cantilever with Mansard Framing

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

109kb DWG

Updated Aug 2025

VIEW

10kb PDF

Updated Aug 2025

Red-I DTL 16 Roof Details – Ridge

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

288kb DWG

Updated Aug 2025

VIEW

15kb PDF

Updated Aug 2025

Red-I DTL 15 Roof Details – Beveled Plate Requirements

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

103kb DWG

Updated Aug 2025

VIEW

10kb PDF

Updated Aug 2025

Red-I DTL 14 Roof Details – Slope at High End

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

222kb DWG

Updated Aug 2025

VIEW

10kb PDF

Updated Aug 2025

Red-I DTL 13 Roof Details – Slope

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

233kb DWG

Updated Aug 2025

VIEW

11kb PDF

Updated Aug 2025

Red-I DTL 12b Outriggers (Available as Plant-Assembled)

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

301kb DWG

Updated Aug 2025

VIEW

17kb PDF

Updated Aug 2025

Red-I DTL 12a Cantilevers (Field-Assembled Only)

PRODUCTS:
Red-I™ Joist, 
TYPE:
AutoCAD Details
DOWNLOAD

305kb DWG

Updated Aug 2025

VIEW

18kb PDF

Updated Aug 2025

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