The board extension slides next to the back side of the standard game board; creating a complete board with 70% bigger hexes (the content is the same). All units and resources in Scythe are kept on the board; so the larger hexes provide more space. The standard game board is 624x818mm (24.6 x 32.2 in); and it grows to 818x939mm (32.2 x 37.0 in) with this extension.