Understanding GSM in Netting Products
GSM — grams per square meter — is a fundamental specification in agricultural netting. It defines the weight of the fabric per unit area and is closely related to both the shade rate and the durability of the product. This article explains what GSM means, how to interpret it, and how to use it to compare products effectively.
What Does GSM Measure?
GSM measures the mass of the net fabric per square meter. A higher GSM means more yarn material is present in each square meter of net, which generally correlates with a higher shade rate and greater durability. However, GSM must always be evaluated alongside other specifications — particularly UV content and yarn type.
GSM and Shade Rate Relationship
In shade netting, GSM increases as shade percentage increases because more yarn is needed to block more light. For bird nets and hail nets, GSM relates more to structural strength than shade rate.
How to Use GSM When Comparing Products
- Always compare GSM alongside UV ppm — a high GSM net with low UV will fail faster than a lower GSM product with premium UV
- Check whether the GSM is based on mono or tape yarn — mono yarn typically delivers better performance at the same GSM
- GSM should match your application: over-specifying leads to unnecessary cost; under-specifying leads to premature failure
SNY GSM Standards
SNY products are manufactured with precise GSM control and tested at production to ensure each roll meets the specified weight tolerance.