How Far Should A Lintel Overhang For A Garage Door

Actual lintel to be aprox 400mm over each side.

How far should a lintel overhang for a garage door.

We have limited spans to 12 0 for economical angle sizes. Width of garage door opening standard widths are 8 9 10 12 14 16 17 and 18 height of the garage door opening standard residential heights are 7 7 6 8 header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening. If the lintel is incorrectly installed the lintel may no longer be able to support the load and may visibly deflect over time causing loads to be place upon frames. With a 4 depth the cubic size of the stone is approximately 43 cubic feet.

L 600 or 0 3 max. My 16 foot garage door has what appears to be a steel lintel above it supporting a 4 deep decorative concrete stone wall stretching to the eaves. Brickwork should not overhang steel lintels by more than the allowable distance brickwork should not overhang lintels by more than 25mm as a greater overhang may cause horizontal cracking to the brickwork above. Longer spans such as those over garage doors should be designed by a structural engineer to carry brick floor and roof loads.

The mounting platform should consist of concrete padstones with the following dimensions 400mm long x 100mm wide or as wide as the wall x 300mm deep. Answered 9th nov 2014. The area of decorative stone being supported by this lintel is approximately 128 square feet.