This is the shade sail we supply at 185GSM, and the weight is the number to start from because it is what decides how the cover behaves on the frame. At 185GSM the HDPE is a heavy cloth rather than a light garden grade sheet, so the sail hangs taut across a span, keeps a straight edge instead of bowing in the middle, and stands up to wind without the weave stretching out. It is supplied in a sand tone with UV resistance in the yarn and finished with a turned hem, stitched corners and steel D rings, so it can be rigged on posts or a wall and strained tight. Sizes are made to order.
The weight of the cloth is the number to start from on a shade sail, because it decides whether the cover hangs taut or bows across the span. This one is supplied at 185GSM in a sand tone, cut to size and finished with stitched corners and steel D rings, so it can be rigged on a patio, over a bed, or across a farm yard.

At 185GSM the HDPE is a heavy cloth rather than a light garden grade sheet. That weight is what holds the sail flat across a span instead of letting it bow in the middle, and what keeps the edge straight when the corners are strained. It also stands up to wind better, since a heavier weave does not flog itself loose the way a thin sheet does. The yarn carries UV resistance, so the cover keeps its shade rate across a season rather than drifting toward the light end, and the weave stays open enough for air to move under the sail.

The sail is cut per span rather than picked from a stock size, which is what lets one product cover a patio table, a vegetable bed under glass, and a farm yard where stock or machinery sit in the sun. On a greenhouse it goes over a bay or a bench, and outdoors it goes over a seating area or a yard. Growers covering beds under the same sail often pair it with a planting bag, and the wider shade net range covers the roll goods and the aluminised grades where a different job is wanted.

| Material | HDPE cloth with UV resistant yarn |
| Weight | 185GSM |
| Shade Rate | Made to order |
| Colour | Sand, other colours made to order |
| Size | Custom, cut to the span you give us |
| Corners | Stitched with steel D rings |
| Application | Patio, garden, greenhouse bay and farm yard |
| Packing | Export package, customised on request |

The corner carries the whole load on a sail, so the hem is turned and stitched and the D rings are set into a stitched webbing strap rather than punched through the cloth. That lets the cover be strained tight on posts, a wall or eye bolts without the weave pulling open at the fixing, and it can be taken down and put back up season after season. A knitted monofilament net covers the same idea where a finer weave is wanted, while this sail covers the heavier 185GSM job.

Span, shape, shade rate and colour are all made to order, so the first detail to confirm is the points you are rigging to and the area you are covering. Sails ship in export packing and are folded to suit the size. Buyers tracking how shade sails perform across a season can follow trade coverage such as HortiDaily and FreshPlaza for what is being installed on commercial sites.
What does 185GSM mean here?
It is the weight of the cloth per square metre. At 185GSM the sail is a heavy HDPE that holds a flat span, rather than a light garden sheet that bows in the middle.
Is the same sail used indoors and outdoors?
Yes. The size is cut to the span, so one product covers a greenhouse bay and an outdoor patio or yard. Tell us which you are covering and we will size it.
Can I order a different size, shape or colour?
Yes. Span, shape, shade rate and colour are all made to order. Tell us the points you are rigging to and we will advise.
Tell us the span, the shape and the shade rate you are working to, and we will confirm the size and the packing that suit your order.
Mark Wu, Co-founder & Technical Director, Sichuan Zhifang Net Industry. 15 years manufacturing agricultural nettings for growers in 32 countries.