11' x 11' octagonal summerhouse
Dimension A = 1332mm
Dimension D = 1332mm
Dimension E = 1332mm
Dimension H = 1332mm
Overall width = 3287mm (968mm + 1332mm + 968mm)
Overall depth = 3287mm (968mm + 1332mm + 968mm)
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.