Cast Net Size Chart: Radius, Diameter & Mesh Explained

Cast net sizing trips up more first-time buyers than any other spec on the page. Radius, diameter, mesh, weight per foot — none of it is complicated once it's laid out, but the terms get thrown around loosely enough that it's easy to buy the wrong net. This is the quick-reference version: bookmark it, or use it once and move on.

Radius vs. diameter — the one thing to get right first

Every cast net is sized by radius — the distance from the center horn out to the lead line on one side — not by the full width of the net when it's open. When a listing says "8 ft," that's the radius. The net actually opens to a circle twice that size: an 8 ft radius net opens to a 16 ft diameter.

This matters for two reasons. First, it's easy to think you need a bigger net than you do — a 6 ft radius net already covers a 12 ft circle, which is more water than most people picture. Second, some states regulate cast nets by radius and others by diameter (a few even specify both, or a mesh minimum on top). If you're fishing under a legal size cap, confirm which measurement your state uses before you buy — see our cast net laws by state page for state-specific limits.

Radius reference table

The 5–6 ft radius is genuinely the most popular size for a reason: it's enough net to matter without requiring the throwing mechanics that a 10–12 ft net demands. If you're not sure where you land, our guided net finder walks through your fish, water, and experience level and points to a specific product.

Mesh size reference table

Mesh size determines what stays in the net and what swims through it. Bigger mesh sinks a little faster (less material dragging in the water) but lets smaller bait escape; smaller mesh catches everything but has more drag.

When in doubt, 3/8" is the right starting mesh. It's available across every BasicGear series and covers the widest range of common bait without over- or under-catching. Full context on matching mesh to species is in our cast net size guide and the sizing section of the FAQ.

Weight per foot by series

Sinker weight — measured in pounds per foot of radius — determines how fast the net sinks and how tightly it closes before bait can swim out from under it. This is the spec that separates BasicGear's series more than mesh or radius does:

• Basic Series & Sports Series — 3/4 lb/ft. Galvanized zinc iron sinkers (Basic) or PVC-coated sinkers that won't scratch a hull (Sports). Solid all-around sink rate for calm, shallow water.
• Classic Series — 0.75–1 lb/ft in pure lead. Denser sinkers sink noticeably faster, which matters in current, deeper flats, or bridge fishing where a slower net drifts before it closes.
• Pancake Gold & Pancake Blue — 1.6 lb/ft real lead ball sinkers, roughly double the Classic's weight. The fastest close in the lineup, and heavy enough that it's worth building throwing technique on a lighter net first.

A quick sanity check on total weight: a 10 ft radius Basic or Sports net (3/4 lb/ft) comes in around 7.5 lbs. A Classic at the same radius runs closer to 8–10 lbs. That difference is noticeable on the hundredth throw of the day, not just the first.

Putting it together

Most anglers land on a 5–8 ft radius, 3/8" mesh, Basic Series net — versatile mesh, forgiving size, and a sink rate that handles typical shallow-water bait. From there, adjust one variable at a time: go bigger on radius for open water, go to Classic or Pancake for current or depth, go finer on mesh only if you're specifically after very small bait.

Still working out mechanics? Our step-by-step throwing guide covers the actual technique once you've got the size and mesh sorted. And if legal size limits apply where you fish, check cast net laws by state before you buy.