Greenhouse Surface Area Calculators
Select Frame Style: Gable Frame, Hoop Frame, or Lean-to
Length of Greenhouse (feet)
Measurement L on the diagram.
Gable Frame Area Calculator
A-frame diagram
Width of Greenhouse (feet)
Measurement W on the diagram.
Height of Greenhouse (feet)
Measurement H on the diagram.
Height of Sidewalls (Feet)
Measurement S on the diagram.
 
Area of Greenhouse - This number is used in the Heater BTU Calculator to calculate the minimum BTU output heater needed for your greenhouse.

Length of Greenhouse (feet)
Measurement L on the diagram.
Quonset (Hoop) Frame Area Calculator
Quonset frame diagram
Width of Greenhouse (feet)
Measurement W on the diagram.
Height of Greenhouse (feet)
Measurement H on the diagram.
Length of Bows (feet)
Measurement B on the diagram.
 
Area of Greenhouse - This number is used in the Heater BTU Calculator to calculate the minimum BTU output heater needed for your greenhouse.
Length of Greenhouse (feet)
Measurement L on the diagram.
Lean-to Area Calculator
Lean-to diagram
Width of Greenhouse (feet)
Measurement W on the diagram.
Height of Greenhouse (feet)
Measurement H on the diagram.
Height of Sidewalls (feet)
Measurement S on the diagram.
 
Area of Greenhouse - This number is used in the Heater BTU Calculator to calculate the minimum BTU output heater needed for your greenhouse.

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