Line a 9x13 pan with parchment paper or grease well. Set aside.
Finely crush 9 graham cracker sheets using a food processor or rolling pin.
In a medium bowl, add crushed graham crackers, sugar and melted butter. Mix with a fork until well combined.
Press the mixture down on the bottom and edges of prepared pan firmly using your fingertips or the back of a measuring cup.
Place the crust in the fridge for 30-60 minutes to set. *If you would like to set the crust faster, you can bake it for 10 minutes at 350 degrees. Cool completely before adding filling.