Founded in 1864, Mesker Door provides commercial, industrial and institutional metal doors and frames. Its products meet or exceed all Steel Door Institute and Architectural Design Specifications. Mesker Door is approved for fire rated labeling with UL, WHI and FM. The company is expanding its capabilities and service as it merges with Los Angeles Fireproof Door to be a more complete hollow metal supplier. Its acoustic door assemblies come with door, frame, cam lift hinges, threshold, sound seals and bottom seal. Mesker offers a line of acoustic rated windows as well as custom frames, stiles, rails, bullet resistant items and stainless steel products. Mesker Door is headquartered in Huntsville, Ala.