12 ft x 15/16 in Armstrong Prelude XL Exposed Tee Intermediate Duty Main Beam - 7300
12 ft x 1 1/2 in Armstrong Drywall Grid System HD Main Beam - HD8906
12 ft x 9/16 in Armstrong Suprafine XL Exposed Tee Intermediate Duty Main Beam - 7500
12 ft x 15/16 in Armstrong Prelude XL Exposed Tee Intermediate Duty Main Beam - 7300BL
12 ft x 15/16 in Armstrong Prelude XL Exposed Tee HD Main Beam - 7301BL
12 ft x 1 1/4 in Armstrong Drywall Grid System Knurled Angle Molding - KAM12
12 ft x 15/16 in Armstrong Prelude XL Exposed Tee HD Main Beam - 7301WA
12 ft x 15/16 in Armstrong Co-Extruded Clean Room ID Main Beam - EA7900
12 ft x 9/16 in Armstrong Suprafine XL Exposed Tee Heavy Duty Main Beam - 7501ZW
12 ft x 1 1/2 in USG Donn Brand DX/DXL 15/16 in Acoustical Suspension System Main Tee - DX24
12 ft x 15/16 in Armstrong Environmental Prelude Plus XL Exposed Tee Main Beam - AL7200WA
12 ft x 1 1/2 in Armstrong SimpleCurve .018 in Knurled Angle Molding - SC151225
12 ft x 15/16 in Armstrong Prelude XL Exposed Tee HD Main Beam - 7301
12 ft x 2 in x .018 in Armstrong SimpleCurve Knurled Angle Molding - SC21225
12 ft x 9/16 in Armstrong Silhouette XL w/ 1/4 in Reveal Intermediate Duty Main Beam - 7600
