Window / Door Lintel

A horizontal structural element spanning the opening for a window or door in a wall. For cavity walls, proprietary boot lintels (pressed steel) or Catnic-type lintels span both inner and outer leaves simultaneously. For timber frame walls, LVL (laminated veneer lumber) or solid timber headers are used. The lintel must be long enough to provide adequate bearing onto the masonry piers on each side of the opening.