This is the difference between the minimum and the maximum wall thickness as measured at the end of the tube
A second, relatively short length of track just to the side of a railroad track, joined to the main track by switches at one or both ends, used either for unloading freight, or to allow two trains on a same track to meet (opposite directions) or pass (same direction)
The finish covering of the outside wall of a frame building, whether made of horizontal weatherboards, vertical boards with battens, shingles, or other material
The thickness of a rib or timber, measured, at right angles with its side, across the curved edge; as, a timber having a siding of ten inches
Siding is a wooden or metal covering on the outside walls of a building. Material used to surface the exterior of a building to protect against exposure to the elements, prevent heat loss, and visually unify the facade. The word siding implies wood units, or products imitative of wood, used on houses. There are many different types of siding, including clapboard, horizontal lap siding, vertical board siding, and shingles. Board and batten siding, sometimes found in Carpenter Gothic houses and very modest structures, differs from the common clapboard in that it consists of vertical wood boards with their butt joints covered by battens (narrow strips), imparting a seamed appearance. Both aluminum and polyvinyl-fluoride-coated siding (commonly called vinyl siding) were developed as maintenance-free alternatives to wood clapboard; they mimic its horizontal boards. Fiberboard, a pressed-wood-pulp product, is sometimes used, though its long-term durability is limited. In larger buildings, the exterior covering is called cladding, and may be of brick, glass in a metal framework, or stone, concrete, or metal panels
Exterior finish for a frame building Several types of siding might include: Asbestos cement hinges, asphalt, clapboard, shingle, board and batten, drop siding, shiplap, T111, vinyl, aluminum, hardboard, etc
a short stretch of railroad track used to store rolling stock or enable trains on the same line to pass material applied to the outside of a building to make it weatherproof
The finish covering of the outside wall of a frame building Many different types are available