Gourock can quote and supply customized nets that integrate portals according to most any particular dimensions that you are aiming for. Using the DuPont® knotted nylon netting and the 5/16" Dacron® rope bordering is very beneficial because there is a very wide range of twine thicknesses and mesh sizes to select from, and the final result is a net that is reinforced on all edges with extremely durable braided rope (sewn-in).
The following drawings help demonstrate 5 different custom nylon netting productions for different clients over the last few weeks that have customized portal locations in their design. Most of these nets were built from either the #36 X 1-3/4" knotted nylon netting, or the thicker #72 X 1-3/4" knotted nylon netting for maximum abrasion resistance and strength.
If you need a quotation on something similar, feel free to contact us with your details and we can take a look at it for you!