GMS Inc is a distributor of specialty building products including wallboard, suspended ceiling systems, ceilings, steel framing, and other complementary building products. The company serves its products to commercial new construction, commercial repair and remodel, residential new construction, and residential repair and remodel (R&R). Its geographical segment is Central, Midwest, New York, Northeast, Southern, Southeast, Southwest, Western and Canada, and Ames. The companygenerates maximum revenue from Wallboard products.