Sailboats are not required by the USCG to carry a capacity plate, otherwise that would be clue. O'Day listed the 20 as having seating for 6, They list the "sailing displacement" as 2425# with 4 people aboard (150# ea.), so I guess you could say that O'Day "rated" the boat for 6 persons or 900# weight capacity. Again, since sailboats are not required to have a capacity rating, this is "unofficial", but should serve as a ballpark figure!