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Minimum base sizes
12ft wide Greenhouse
We recommend that your base should be no smaller than the minimum base size listed below and no more than a few inches larger.
The first dimension listed is the external width (A) and the second dimension is the external length (B). The width refers to the angled gable wall.
12'1" x 14'5" GREENHOUSE = minimum base size 3680mm wide x 4390mm long (12'1" x 14'5")
12'1" x 16'9" GREENHOUSE = minimum base size 3680mm wide x 5110mm long (12'1" x 16'9")
12'1" x 19'2" GREENHOUSE = minimum base size 3680mm wide x 5830mm long (12'1" x 19'2")