A net specification should begin with mesh size, not a vague label such as “small mesh.” State the opening size and measurement method, such as stretched mesh measured knot to knot. Also record twine diameter, material, and knot style; these affect water flow, wear, and handling. The FAO’s The State of World Fisheries and Aquaculture 2024 reports 223.2 million tonnes of global fisheries and aquaculture production in 2022. That scale makes clear why one generic net specification cannot suit every operation.

Performance requirements should reflect the actual site: target species, water depth, current, abrasion, and expected load. A net used near rough surfaces may need different wear resistance from one used in calmer water. Check the supplier’s stated breaking strength and request test conditions; a strength number without test details is hard to compare. Include repair needs and storage exposure, too. UV and salt can age materials. A specification can look complete and still miss the conditions that shorten service life. Recheck the numbers against the fishing method before approving production.

A fishing net can look sound on a factory floor and still fail at a knot. Ask suppliers for recent, batch-specific test reports, not only a polished certificate. ISO 1806:2002 describes testing mesh breaking force, while ISO 1805:2006 covers breaking force and knot strength of netting yarn. Check that reports identify the material, mesh size, sample count, and test conditions. Wet samples matter when the gear will work in water. So does repeatability. One test is not a trend.

Certification needs careful reading. Verify the issuing body, expiry date, and exact product scope; a factory quality certificate does not automatically certify every net it makes. Request traceability from yarn lot to finished net, plus records for coating, UV exposure, and dimensional checks. The FAO’s The State of World Fisheries and Aquaculture 2024 reports 223.2 million tonnes of fisheries and aquaculture production in 2022, including aquatic animals and algae. That scale makes consistent quality more than paperwork. Ask for an independent laboratory’s results and compare them with your own sample inspection. I would still hesitate if the supplier cannot explain a failed test plainly. Good documents help, but they cannot replace opening the sample, measuring the mesh, and checking its knots.

A low unit price can hide important differences. Compare quotes using the same net dimensions, mesh opening, twine thickness, material, and edge finish. Ask whether floats, weights, repairs, and packing are included. Freight adds up. Request a cost breakdown that separates production, packaging, and transport. A sample can reveal stiffness, knot consistency, and finishing quality before a larger order. Check its specifications against the written quote; memory is not a reliable measuring tool.

Customization is useful when it solves a real handling or site requirement. Share a clear drawing with dimensions, mesh size, color, and attachment details. Confirm acceptable tolerances in writing, since “custom fit” can mean different things to different suppliers. Ask how the material is suited to your expected water and storage conditions, and whether any treatment affects maintenance. Small details matter. I once assumed a standard edge would work, but the sample showed otherwise; that extra check saved rework.

For international shipping, compare more than the freight total. Confirm the shipping method, estimated production and transit times, packaging dimensions, and who arranges export documents. Clarify which party handles import duties and local charges under the agreed delivery terms. Request tracking and a plan for damaged or delayed cargo. Check destination requirements with your customs broker before shipment, because paperwork errors can hold goods at the border. A cheaper route may cost more if it adds weeks or extra handling.