Fan Size Calculator Heater Size Calculator Plastic Size Calculator Surface Area Calculators
The total surface area of a greenhouse is used to calculate the size of heater needed to properly heat the greenhouse. It is also used to determine the amount of insulation needed to cover a greenhouse. Just enter the greenhouse dimensions into the greenhouse surface area calculator below to find the total surface area of your greenhouse kit.
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 - Use this in our Greenhouse Heater 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 - Use this in our Greenhouse Heater 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 - Use this in our Greenhouse Heater Calculator to calculate the minimum BTU output heater needed for your greenhouse.

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