8'5" x 8'5" octagonal summerhouse 510
Dimension A = 1473mm
Dimension D = 1473mm
Dimension E = 1473mm
Dimension H = 1473mm
Overall width = 2527mm (527mm + 1473mm + 527mm)
Overall depth = 2527mm (527mm + 1473mm + 527mm)
We recommend that your base should be no smaller than the floor size of the new summerhouse and no more than a few inches larger.