Found this info on and old football forum. It gives some indication about capacity & no of rows.
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Old Trafford total capacity: 76,212
(capacity numbers of each stand are not exact figures)
North Stand: 25,500 = 102 rows of seats
Lower: 4,250 = 17 rows
Upper: 8,000 = 32 rows
2nd tier: 8,250 = 34 rows
3rd tier: 5,000 = 19 rows
East Stand: 11,500 = 89 rows
East Stand lower: 1,500 = 17 rows (disabled section)
East Stand upper: 4,000 = 32 rows
East 2nd Tier: 6000 = 40 rows
West Stand: 12,000 = 89 rows
West Stand lower: 2,000 = 17 rows
West Stand upper: 4,000 = 32 rows
West 2nd Tier: 6000 = 40 rows
South Stand: 11,500 = 48 rows
Lower: 2,500 = 11 rows
Upper: 8,500 = 37 rows
Lower corners: 1,500 = 48 rows x 4
Upper North East Quadrant: 4,000 = 33 rows (maximum)
Upper North West Quadrant: 4,000 = 33 rows (maximum)
Executive boxes: 1,000
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West Stand Tier 2
