- masonry: constructed of brick or stone.
- concreted: constructed of concrete, a material
made of sand and gravel that is united by cement into a hardened mass used for roads,
foundations, etc. (adapted from the Illustrated Contemporary Dictionary, Encyclopaedic
- loose boulders: constructed from large stones
or blocks of concrete, often placed loosely for protection against waves or water
- hard surface: constructed with a surface of
hard material, usually a term applied to roads surfaced with asphalt or concrete.
- unsurfaced: constructed with no extra
protection, usually a term applied to roads not surfaced with a hard material.
- wooden: constructed from wood.
- metal: constructed from metal.
- glass reinforced plastic (GRP): constructed
from a plastic material strengthened with fibres of glass.
- painted: the application of paint to some other
construction or natural feature.