When measuring a boat for a genoa jib, there are several factors you have to take into consideration.

In 2019 the star class voted to increase the minimum weight for Star jibs to an unfinished fabric weight of 4.4 oz per sailmakers yard (28"x36"). This raised a lot of questions about what was legal and what was not legal.

Using I, P, J, and E measurements, the sailmaker is able to determine the size of the sails for your boat.