USG's 12 ft. Donn® DX® 15/16 in. Aluminum Main Tee (20 Pieces per Pack) (SKU: DXLA24) supports efficient installation and consistent load distribution across suspended ceiling grids. Precision manufacturing helps maintain straightness over long spans, reducing field adjustments and installation time. Its durable aluminum design resists rust and surface degradation, contributing to a clean, professional appearance over the life of the ceiling system. This main tee is ideal for commercial, institutional, and specialty interior spaces where performance, reliability, and corrosion resistance are essential.