another garage question

[ferguson1947]

designing my new lean to garage and the roller door will cover most of the end of the garage can I build a steel frame for the end to house the door and a window then clad the space above the door and below the window with cladding
the roof will be box profile sheets so lighter than tiles in using steel I can have the door tight to the left without needing to build a pier for a lintel a I cannot build lintel into party wall

garage

• ferguson1947
• 25 Aug 2013
• 1

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[ferguson1947]

as the pics show the current and new door would be tight to the left the current timber frame is fastened to the party wall and I want to fit a roller door so was thinking a 100mm x 100mm steel frame

the max garage width is 4375 to external wall so 3050 door +100mm+100mm frame +140mm for wall leaving about 900mm for window so there would be no weight in this end of the building