Model #7400R

12' Main Beam

Model #7400R

12' Main Beam

Prelude XL 144" Duty Main Beam. This main beam features a patented thermal expansion relief notch to help maintain the structural integrity of a ceiling to meet code requirements. It can be installed with our standard Prelude cross tees, wall molding and appropriate ceiling panels for residential basement fire code applications.

  • Installation Method

    Suspended/Drop (accessibility)

Residential Fire Safety

This grid component, with certain Armstrong ceilings, also complies with the I-Joist Floor Fire Safety Code, being adopted in more and more states.

Learn More


Read the detailed installation instructions before starting your project.


Model Number 7400R
Product Name 12' Main Beam
Component Main Beam
Installation Method
Suspended/Drop (accessibility)
Collection PRELUDE XL 15/16" Grid System
Color White
Duty Rating Intermediate Duty
Length 144"
Height 1-1/2"
Material Type Hot-dipped Galvanized Steel
End Detail Staked-on clip
Product Type Installation Systems