Not the average gable, this was all 8" concrete and not seen is the 4' frost wall behind the materials. We put up the walls, framed most of the interior framing, decked the roof and set the heavy as hell windows in about 18 days with a five man crew. This was just over a truckload of forms and slightly remote in Colorado. We poured to the bottom of the windows on the first go round, I think that was about 16' tall, then went to 20 or 22 foot on the second pour to the top of the gable. The back wall was to a lower pitch gable, this one in front I believe was a strange pitch due to the window sizes but was in the neighborhood of a 12:12 The ledger above the garage doors is for a porch or main entry level during the winter months! I think this one was at about 9500 ft. Had to rent a stinger to set the ridge beam.