1015mm
1015 mm (1.015 m) is a dimensional specification equal to approximately 3 ft 3 7⁄8 in. The figure is most often cited as a gauge in the railway industry, representing the distance between the inner faces of the two rails of a narrow‑gauge track. It falls between the 1000 mm (meter gauge) and the 1067 mm (Cape gauge) that have been historically more common worldwide.
The 1015 mm gauge originated in the early twentieth century in several Southeast Asian and Australasian railways
During the mid‑century, many of the railways that had been constructed to 1015 mm were either converted to
Beyond railways, the numerical value 1015 mm may appear in engineering contexts where a specific length is