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The Steiner Tunnel Test is a widely used method of testing building interior wall and ceiling finishes for their ability to support and propagate fire, and for their tendency to emit smoke. The test was developed in 1944 by Al Steiner of Underwriters Laboratories, and has been incorporated as a reference into North American standards for materials testing as tests ASTM E84, NFPA 262, NFPA 255, UL 723 and ULC S102. These standards govern the regulation and selection of materials for interior building construction throughout North America. This research compares ASTM E84 with NFPA 262 and can help to design the Steiner Tunnel Furnace. In ASTM E 84, test specimens are Building materials, test time is 10 minutes, supporter is steel mesh, exhaust duct type is U-shaped, measurement is hot wire or pitot tube and test results are Light Absorption, Flame Spread Index, Smoke Developed Index. In NFPA 262, test specimens are Wires and cables, test time is 20 minutes, supporter is ladder, exhaust duct type is straight, measurement is Bi-Directional Probe and test results are Optical density of smoke (peak optical density, average optical density), Linear duct velocity, Smoke Release Rate, Heat Release Rate, Flame travel distance/time.