With 96 culture/square :
Planks level 19, 46.8 points/square. Marble 19, 45.74. Elixir 15, 45.49. Steel 19, 44.54. Magic Dust 15, 44.4. Crystal, 43.75. Gems 15, 43.2. Silk, 42.62. Scrolls, 41.39. Armory 17, 37.5. Workshop 17, 34.8.
The total footprint is :
Squares for the...