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A guyed mast may be a single pole, or a square or triangular section
lattice structure. The range of single-pole masts includes those of about
4 m maximum height mounted on chimney stacks and secured by wire
lashings, and poles supported on the ground or the roof of a building.
The latter types may be up to 30 m high. They are usually constructed
from steel or aluminium hollow tubular sections – the bottom section is
invariably steel – with a set of guys at about every 5 m. Mast erection
is specialist work but to estimate the approximate height that a site
can accommodate, a four-guy, single-pole mast requires a minimum
spacing for the anchorage points in the form of a square with sides
equal to half the height of the mast. The guys may be of steel, ...