Main Page | See live article | Alphabetical index A lintel is a horizontal beam used in the construction of buildings. It usually supports the masonry above a window or door opening. Lintels may be wood, stone or metal. The term Lintel is used to describe a computing platform consisting of the Linux operating system running on CPUs which are compatible with the x86 instruction set defined by Intel for their microprocessors. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.