Summer is here, and whether you're growing flowers on a home balcony, planting vegetables on a rooftop, or managing an agricultural greenhouse, shade netting is an essential sun protection tool. However, faced with a wide variety of shade net products on the market, many people feel confused when choosing: What exactly does gram weight mean? What's the difference between 30g and 120g? This article will help you understand it all at once.
The gram weight of shade netting refers to the weight per square meter, measured in g/m². It is a core physical indicator of how much material is used, the density of the weave, and the overall thickness of the net. Simply put, higher gram weight means thicker strands, denser weaving, and a heavier net; lower gram weight means thinner strands, sparser weaving, and a lighter net.
Common shade net weights on the market are mainly concentrated in the 30-120g/㎡ range. Different weights correspond to different usage scenarios, and the key is to make the right choice based on your actual needs.
This weight range features larger mesh openings and higher light transmittance, with a shading rate typically around 50%-60%. Its greatest advantages are light weight, softness, and excellent ventilation—it can block some of the intense sunlight while still allowing plenty of light to pass through.
What's particularly worth mentioning is that this type of shade net is ideal for plants that need plenty of light but are sensitive to intense sun exposure, such as succulents, orchids, and hydrangeas. At midday in summer, harsh sunlight can scorch the leaves of these plants. The lightweight 30-50g shade net acts like a soft-focus filter—it reduces the intensity of the sun without preventing photosynthesis, allowing these plants to stay healthy through the summer.
Additionally, this type of shade net is affordable and easy to install, making it a very economical choice for temporary or short-term use.
Best for: Summer protection for succulents, shading for orchids and hydrangeas, and temporary covering during seedling transportation.
This is the best-selling and most mainstream shade net specification on the market. The shading rate is around 60%-75%, balancing sun protection with ventilation. The service life is generally 1-2 years.
The advantage of this weight range is balance—it effectively blocks strong summer sunlight and reduces ambient temperatures without leaving the area underneath completely dark, so plants can still receive sufficient light. At the same time, its moderate weight makes installation easy, requiring no specially reinforced supports.
For most home users, this weight range offers the best cost-performance ratio, meeting daily shading needs without unnecessary waste.
Best for: Shading potted plants on home balconies, sun protection for courtyard leisure areas, and summer protection for small vegetable gardens.
Shade nets at this level are noticeably thicker and denser than standard ones, with a shading rate of 75%-85%. Its core advantage lies in superior durability—wind resistance and anti-aging capabilities are significantly improved, and it can maintain integrity for 2-3 years without becoming brittle under normal use.
For scenarios requiring long-term fixed coverage, this weight range can withstand prolonged sun and wind exposure. A single installation provides peace of mind for multiple summers, eliminating the hassle of annual replacement. Meanwhile, the higher density delivers more uniform shading, creating soft and comfortable light conditions underneath.
Best for: Long-term coverage of rooftop gardens, shading and cooling in livestock farms, and outdoor fixed installations with high durability requirements.
This is the highest specification available in the ordinary consumer market. The net surface is thick and tightly woven, with a shading rate exceeding 85%. Both UV protection and tensile strength are excellent.
The greatest advantage of this weight range is strong protection—it maximizes UV blockage and provides the most reliable protection for the plants or spaces underneath. Additionally, thanks to the thick strands and dense weave, its structural stability is outstanding. Even in windy or rainy conditions, it stays flat and is resistant to deformation or damage.
For commercial growing operations that require high-level protection, this type of shade net creates a stable, controllable environment for crops and is an indispensable supporting facility for professional cultivation.
Best for: Vegetable greenhouses with high shading requirements, flower planting bases, and commercial growing operations that need high-level protection.
Home balcony: Choose the 50-80g standard grade for a balance of effectiveness and value
Rooftop garden: Choose the 80-100g thickened grade for long-lasting durability
Agricultural greenhouse: Choose the 100-120g high-density grade for maximum protection
Succulents/orchids (sun-sensitive plants): Choose the 30-50g lightweight grade for light transmission with sun protection
Shade nets produced by reputable manufacturers will clearly state the gram weight on the product label—be sure to check this when purchasing. Additionally, for the same gram weight, prioritize products with uniform color, no odor, and neat weaving, as these indicate better quality.
Remember this: When choosing shade netting, don't look for the heaviest—look for the one that's just right for you.
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