The doors to the Rodber Suite will open at 1pm, with the Captains' Suite opening for alcoholic refreshments.
The doors to the pitch will be open throughout the four hours for supporters to take a look at the new West Stand.
The entire squad will attend the open day between 2pm and 4pm when they will run 10 work stations on the pitch.
At 3.45pm, the squad will assemble in the South Stand to sign autographs for anyone who wants them.
Admission is free and food and refreshments will be available.
It will be a great day for children and an opportunity to meet the club's new players.