Open Net Installations

Open nets are made from cords, and have the least water resistance of any of the nets we offer. All of our open nets are a knotless construction (no knots at the cord intersections), and are vinyl coated for UV protection and better appearance. Because of their openness these nets are not as comfortable as mesh or webbing nets, however by making and installing the nets so they have good support and tension, that discomfort can be minimized.

One of the difficulties in fabricating nets in this material is that when the netting in not under tension it is very flexible and undersized, it can be easily distorted in shape. It is important in installing this type of netting that it be allowed to stretch out in all directions as it is being tensioned. For that reason we prefer to make these nets with a tensioning border on all sides.

Open Net Border Types

Tensioning Borders

Grommet Borders are usually the best choice. We pre stretch the netting when we attach the reinforced border so when you lace it to your boat it will naturally stretch out to the proper shape. A grommet border, made to the stretched tight finish length, can fold up or undulate before the net is tensioned, to match the un tensioned size of the net. When the net is installed, all these sides can straighten out simultaneously as the net is tensioned.

Rope Borders are another possibility that allow the net to tension uniformly on all sides at once. This is where the netting is attached to a rope at the border. As with grommet borders the net is pre tensioned to the proper size as the border is attached, but with the rope border the net can be laced around the rope at any point along the border so it is not necessary to match fixed lacing points on the boat with lacing points on the net. Rope Borders are not as stiff as grommet borders so it is more important that the net be tensioned from the corners to prevent the rope from scalloping. This tensioning from the corners should be to a strong, through bolted, lacing point and the corners should be tensioned, with multiple wraps of line, prior to the tensioning along the sides of the net.

Non-Tensioning Borders

We can also make open nets with non-tensioning borders like cable sleeves and boltropes, but this should only be used on one side, and preferably one of the shorter ones. Long boltropes are a problem as the net must be stretched out fully on this side, to get the boltrope inserted into the track, before any of the other sides can be tensioned. Cable sleeves are not as much of a problem as they allow some degree of expansion along the cable after the cable is inserted.

Un Supported or Self Supported sides are also possible, where the side is reinforced with a strong webbing that will be tensioned from the corners only. This is only recommended on security nets that will not get much use, as this type of border will not offer as much support, and the net will deflect a lot more when walked on. This type of border should be laced to strong through bolted attachments at the corners and this side should be tensioned first when installing the net as the corner lacings will be under a lot more tension that those along a supported side.