SOUTH FORSYTH — The Forsyth County Public Library Board plans to pursue a $2 million state construction grant that could be used to fund a larger-than-planned expansion of the Sharon Forks branch. The popular library on Old Atlanta Road in south Forsyth was already set to be expanded next year using money from impact fees and the 2011 voter-approved extension of the 1-cent sales tax. “[But] if we were to get a state construction grant, we could expand it from 8,000 [square feet] to 12,000 [or] 14,000,” said Jon McDaniel, director of the local library system.