A common size is 20 or 24 inches by 3 feet.
Both men and women are of a common size with Europeans.
The most common apartment size was 6 rooms of which there were 8.
The most common apartment size was 4 rooms of which there were 388.
The most common apartment size was 3 rooms of which there were 27.
The most common apartment size was three rooms of which there were 1,128.
The most common apartment size was 5 rooms of which there were 142.
The most common size of shotgun shell is the 12-gauge.
They have 600ml bottles, but I think the more common size is smaller than that (maybe 350ml).
The notes share the common size of 154 x 70 mm.