Pre-fabricated, pre-tensioned concrete lintels spanning garage doors.

A lintel or header is a horizontal beam used in the construction of buildings, and is a major architectural contribution of ancient Greece. It usually supports the masonry above a window or door opening. (Also sometimes spelled 'lintol', 'lintil',' lyntil'.) Lintel, spanning garage doors. ... Lintel, spanning garage doors. ... Garage has several meanings: Look up Garage on Wiktionary, the free dictionary In connection with vehicles, a garage has the following meanings: A building attached to or on the grounds of a residence for storing an automobile (UK: car) A garage that is open on at least 2 sides is... A statically determinate beam, bending under an evenly distributed load. ... Building is either the act of creating an object assembled from more than one element, or the object itself; see also construction. ... Masonry is the building of structures from individual units laid in and bound together by mortar. ... A window is an opening in an otherwise solid, opaque surface through which light and sometimes air can pass. ... The front door of a house is often decorated to appear inviting. ...

Lintels may be made of wood, stone, steel or reinforced or pre tensioned concrete. A tree trunk as found at the Veluwe, The Netherlands Wood derives from woody plants, notably trees but also shrubs. ... Sedimentary, volcanic, plutonic, metamorphic rock types of North America. ... The old steel cable of a colliery winding tower Steel is a metal alloy whose major component is iron, with carbon being the primary alloying material. ... Reinforced concrete at Sainte Jeanne dArc Church (Nice, France): architect Jacques Dror, 1926–1933 Reinforced concrete (ferro concrete) is concrete in which reinforcement bars (rebars) or fibers have been incorporated to strengthen the naturally brittle concrete. ... This article or section should be merged with Prestressed concrete Post-tensioned concrete is the descriptive term for a method of reinforcing concrete by applying compression to poured concrete after the curing process (in situ). ...

For example, at Stonehenge, stone lintels top off some of the megaliths. In typical homes today, lintels are commonly used in fireplaces where one will span the opening of the firebox. In this use they are most often steel, either straight for a square opening or arched for a more decorative effect. Stonehenge Stonehenge is a Neolithic and Bronze Age monument located near Amesbury in the English county of Wiltshire, about 8 miles (13 km) northwest of Salisbury. ... Megalithic tomb, Mane Braz, Brittany A megalith is a large stone which has been used to construct a structure or monument either alone or with other stones. ...