Free technical sizing tool
Greenhouse Film Width Calculator
Calculate the finished film width from a measured covering path, round arch or gable roof. Add side drops and fastening allowance, then use the result in your greenhouse film RFQ.
Step 01 / Input
Define the covering path
Measure fixing point to fixing point
Follow the frame surface over the roof and down both sides. Do not use floor span alone.
m
From the left final fixing point to the right final fixing point over the frame.
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m
Estimate a circular roof arc
Use the chord between eaves, arch rise, side drops and fixing allowance. Gothic arches require a measured path.
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m
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m
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m
Estimate two roof slopes
Use the span between eaves, ridge rise, side cover drops and fixing allowance.
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m
m
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m
The RFQ width is rounded upward. Actual production increments and maximum width must be confirmed by the supplier.