Rigs Lab · Gear & fly fishing rigs + leaders

Build any rig.
Share it with every angler.

The rig builder and library for fishing. Lay out every cut, knot and turn to scale, start from a photo of a formula in a book, on a website or in your notebook, then publish it for anglers everywhere to tie, clone, share, print and fish.

rigs to tie
134
knots
42
fly lines
639
leader materials
128
  • Build it to scale

    Every section, knot and turn, drawn the way you tie it, with the cut list worked out for you.

  • Start from a photo

    Snap a formula from a book, a website or your notebook and it comes back as a rig you can edit.

  • Test it in the tank

    Watch it drift, sink and turn over before it ever touches the water.

  • Share it, print it

    Publish it to the library, send the link, or print a card for your vest.

4 rigs

  • A 5.5-foot steelhead leader with a heavy point: 28" of .026" mono joined with a double uni knot to 38" of .017" mono. Built for sink tips and Skagit heads on 7-9 wt rods, it keeps the fly near the depth of the tip and the thick point shrugs off rocks, wood and hard takes.

    Total length5' 6"
    TechniqueSteelhead
    Knots2
    Time to tie1.25min
    .026"
    .017"
    BUTT · 28"
    TIPPET · 38"
  • A 5.5-foot steelhead leader with a heavy point: 28" of .026" mono joined with a double uni knot to 38" of .016" mono. Built for sink tips and Skagit heads on 7-9 wt rods, it keeps the fly near the depth of the tip and the thick point shrugs off rocks, wood and hard takes.

    Total length5' 6"
    TechniqueSteelhead
    Knots2
    Time to tie1.25min
    .026"
    .016"
    BUTT · 28"
    TIPPET · 38"
  • A 10.5-foot swing leader for salmon and steelhead on 8-10 wt rods. A 38" butt of .022" mono steps through four 13" pieces at .018", .016", .014" and .013" to a 36" tippet of .012". The stiff butt and even steps turn a swung fly over on a floating line.

    Total length10' 6"
    TechniqueSteelhead
    Knots6
    Time to tie5min
    .022"
    .018"
    .016"
    .014"
    .013"
    .012"
    BUTT · 38"
    TAPER · 13"
    TAPER · 13"
    TAPER · 13"
    TAPER · 13"
    TIPPET · 36"
  • An 11.5-foot heavy mono leader for swinging big flies to salmon on a 9-11 wt. A 55 inch butt of .024" steps down through 37 inches of .020" and 28 inches of .018" to an 18 inch tip of .016", joined with blood knots. The heavy butt turns over large tube flies and weighted salmon flies, and the stout tip holds a big fish in strong current.

    Total length11' 6"
    TechniqueSteelhead
    Knots4
    Time to tie3.5min
    .024"
    .020"
    .018"
    .016"
    BUTT · 55"
    TAPER · 37"
    TAPER · 28"
    TIPPET · 18"