What a rig does, and how to read one
Explainer · Last reviewed 2026-08-14
A skill rather than a definition: given a diagram of an unfamiliar rig, work out what it is for by tracing where the load goes, where the resistance sits and what happens when it snags.
THERE ARE HUNDREDS OF NAMED RIGS AND ABOUT FIVE IDEAS. Somebody who can read a rig can meet a new one and understand it in twenty seconds; somebody who cannot is left memorising diagrams. This is the reading procedure.
STEP ONE: FIND THE LOAD PATH. Start at the main line and trace, component by component, to the hook. Which components are IN that path and carrying load, and which are hanging off it? A swivel in the path carries everything; a bead beside it carries nothing. The load path tells you what has to be strong and what is merely present.
STEP TWO: FIND THE WEIGHT AND ASK WHETHER THE LINE RUNS THROUGH IT. If line passes freely through or past the weight, this is a RUNNING arrangement and a taking fish feels little until you tighten. If the weight is fixed in the load path, the fish meets it immediately, and the rig is probably intended to hook the fish against it. This single question separates most rigs into two families and predicts how bites will look.
STEP THREE: FIND THE HOOKLENGTH AND ASK WHAT IT IS FOR. Long and fine means presentation is the priority and the fish is expected to be cautious. Short and strong means the fish is expected to bolt and the rig is designed to set the hook by itself. A hooklength standing off the main line on a boom or a loop is there to stop it tangling, which tells you the rig is cast hard or fished in current.
STEP FOUR: FIND THE INTENDED WEAK POINT. Every good rig has one, deliberately. Usually it is the link to the weight, so that a snagged lead breaks free and the fish is not left towing it. If you cannot find a deliberate weak point, either the designer did not think about it or the rig is intended for clean ground.
STEP FIVE: ASK WHAT IT DOES IN THE AIR. A rig with several hooklengths, or a long one, will spin and tangle on a cast unless something prevents it. Booms, beads, tubing and clipped-down arrangements are almost always answers to that question rather than to a fish-catching one.
WHAT THE DIAGRAM WILL NOT TELL YOU is how it behaves when the tide runs, when weed comes through, or when the bait is a size larger than the designer intended. Those are the conditions questions, and they are where a rig chosen correctly on paper still fails.
Reading a rig somebody handed you
A great many anglers fish arrangements they did not design — made up by a shop, copied from a photograph, handed over by somebody on the bank. Reading one before using it takes under a minute and answers four questions in order.
WHERE IS THE WEIGHT, AND CAN IT MOVE. Follow the line from the rod down. If the weight is fixed to the line, a fish feels it immediately and the arrangement is self-hooking; if it runs on the line or on a boom, a fish can take line without moving it. That single fact determines how the rig fishes and how it is fished — see `running-and-fixed-rigs-where-the-resistance-is`.
WHERE IS THE WEAKEST POINT, AND IS IT WHERE YOU WANT IT. Look at the diameters. If the hooklength is finer than everything above it, a break loses a hook. If it is not — if somebody has tied a heavy hooklength to a light or aged mainline — a break leaves a fish attached to the whole arrangement including the lead. That is the single most consequential thing on this list and it is visible at a glance.
CAN THE LEAD COME OFF IF THE LINE PARTS ABOVE IT. On any arrangement with a fixed or semi-fixed weight, the question is whether the fish can shed it. If the answer is no, the arrangement is one that tethers a fish to a weight, and that is a decision rather than an accident.
HOW MANY CONNECTIONS ARE THERE. Every swivel, clip, bead and knot is a failure point and a tangle point. Three is a working rig; seven is somebody enjoying themselves. If you cannot say what a component is for, it is probably not for anything.
AND WILL IT TANGLE ON THE CAST. Hold it up by the mainline and let it hang. A rig that hangs straight and compact usually flies straight; one that hangs in a bundle will arrive in one.
Practitioner consensus
Widely and independently recommended by experienced anglers and specialist sources. This is real angling knowledge, not proof: controlled evidence for it is limited, and FishingHQ records it as convention rather than as a demonstrated effect.
- Freshwater Fishing — Macdonald & Jane's, 1975 (Specialist angling publication)Relied on for: Comprehensive angling practice including terminal arrangements, leaders, droppers and the knots each is made with.States this directlyCitation checked — the work exists and is described correctly
- Coarse Fishing — A. & C. Black, 1912 (Specialist angling publication)Relied on for: Classical coarse angling practice: hooklength attachment, loops, shotting and the arrangements they carry.States this directlyCitation checked — the work exists and is described correctly
- Sea Angler — Bauer Media (Specialist angling publication)Relied on for: Long-running published description of British sea angling practice, including trace construction, dropper loops and shock leaders.FishingHQ's interpretation of what it saysCitation checked — the work exists and is described correctly
- General angling website restatements of established technique — Various (Credible secondary source)Relied on for: Widely restated descriptions of established terminal and connection convention, recorded as practitioner consensus rather than as scholarship.Background and mechanism onlyCitation checked — the work exists and is described correctly
Where to go next
Gear this affects
What these connections rest on (1)
Practitioner consensus — 1 connection
Widely and independently recommended by experienced anglers and specialist sources. This is real angling knowledge, not proof: controlled evidence for it is limited, and FishingHQ records it as convention rather than as a demonstrated effect.
Drop shot rig
A mechanism edge from a record to the reasoning beneath it. How knots and rigs behave is established practitioner knowledge converging across independent angling traditions, and is labelled as consensus rather than as tested result.
- Angling Times — Bauer Media (Specialist angling publication)Relied on for: Contemporary UK coarse and match angling practice as reported by practitioners, including rig and knot convention.States this directlyCitation checked — the work exists and is described correctly
- Sea Angler — Bauer Media (Specialist angling publication)Relied on for: Contemporary UK sea angling practice as reported by practitioners, including rig construction, leaders and line choice.States this directlyCitation checked — the work exists and is described correctly
Related reading
What these connections rest on (1)
Practitioner consensus — 1 connection
Widely and independently recommended by experienced anglers and specialist sources. This is real angling knowledge, not proof: controlled evidence for it is limited, and FishingHQ records it as convention rather than as a demonstrated effect.
Why rigs tangle, and the principles that stop it
A mechanism edge from a record to the reasoning beneath it. How knots and rigs behave is established practitioner knowledge converging across independent angling traditions, and is labelled as consensus rather than as tested result.
- Sea Angler — Bauer Media (Specialist angling publication)Relied on for: Contemporary UK sea angling practice as reported by practitioners, including terminal arrangements and bait presentation.States this directlyCitation checked — the work exists and is described correctly
- Coarse Fishing — A. & C. Black, 1912 (Specialist angling publication)Relied on for: Classical coarse angling practice: terminal arrangements, shotting and bite registration.States this directlyCitation checked — the work exists and is described correctly
How this compares
- Choosing a rig for the conditionsReading a rig tells you what it was designed for; choosing one tells you whether that is what today requires. The two skills are used in that order.
- What a rig isOne record says what the word means; this one is a skill — given an unfamiliar diagram, trace the load path and the weak point and you know what it is for.
What these connections rest on (2)
Practitioner consensus — 2 connections
Widely and independently recommended by experienced anglers and specialist sources. This is real angling knowledge, not proof: controlled evidence for it is limited, and FishingHQ records it as convention rather than as a demonstrated effect.
Choosing a rig for the conditions
Two records a reader will be holding in mind at once, joined so that the distinction between them is visible rather than assumed.
- Sea Angler — Bauer Media (Specialist angling publication)Relied on for: Contemporary UK sea angling practice as reported by practitioners, including terminal arrangements and bait presentation.States this directlyCitation checked — the work exists and is described correctly
- Coarse Fishing — A. & C. Black, 1912 (Specialist angling publication)Relied on for: Classical coarse angling practice: terminal arrangements, shotting and bite registration.States this directlyCitation checked — the work exists and is described correctly
What a rig is
Two records a reader will be holding in mind at once, joined so that the distinction between them is visible rather than assumed.
- Sea Angler — Bauer Media (Specialist angling publication)Relied on for: Contemporary UK sea angling practice as reported by practitioners, including terminal arrangements and bait presentation.States this directlyCitation checked — the work exists and is described correctly
- Coarse Fishing — A. & C. Black, 1912 (Specialist angling publication)Relied on for: Classical coarse angling practice: terminal arrangements, shotting and bite registration.States this directlyCitation checked — the work exists and is described correctly
Sources for this page
- Sea Angler — Bauer Media (Specialist angling publication)Relied on for: Contemporary UK sea angling practice as reported by practitioners, including rig construction, leaders and terminal components.States this directlyCitation checked — the work exists and is described correctly
- Freshwater Fishing — Macdonald & Jane's, 1975 (Specialist angling publication)Relied on for: Comprehensive angling practice including terminal tackle, knots, leaders and the reasoning behind rig arrangements.States this directlyCitation checked — the work exists and is described correctly
- Angling Times — Bauer Media (Specialist angling publication)Relied on for: Contemporary UK coarse and match angling practice as reported by practitioners, including rig and knot convention.States this directlyCitation checked — the work exists and is described correctly
How FishingHQ labels evidence is explained in the evidence policy.