12 ft x 1 11/16 in Armstrong FrameAll Drywall Grid 1 1/2 in Main Beam - HD8906
4 ft x 1 1/2 in x 1 1/4 in Armstrong SimpleSoffit Drywall Framing System L Soffit Down Turn Main Beam - SSLD2424
4 ft x 1 1/2 in x 1 1/4 in Armstrong SimpleSoffit Drywall Framing System L Soffit Up Turn Main Beam - SSLU2424
4 ft x 1 1/2 in x 1 1/4 in Armstrong SimpleSoffit Drywall Framing System L Soffit Up Turn Main Beam - SSLU4824
6 ft x 1 1/2 in x 1 1/4 in Armstrong SimpleSoffit Drywall Framing System L Soffit Up Turn Main Beam - SSLU3636