Running Bowline Knot

The Running Bowline is essentially a Bowline Knot tied around its own standing line to create a sliding loop. This allows the knot to cinch down tightly on materials or serve as a high-strength adjustable anchor.

When to Use a Running Bowline:

This knot is a job-site essential for bundling loose materials like Unistrut, PVC, or conduit. Depending on your task, there are three primary ways to utilize its cinching power:

• The Lasso Method: Best for suspending multiple coils of wire or light bundles where gravity helps maintain tension.

• The Anchored Method: For heavy bundles (like 2" PVC pipe) that might slide, anchor the bowline to one piece of material first, then pull to secure the rest of the bundle.

• ​Running Bowline in a Bight:

  Tying this knot mid-line using a bight allows you to create a sliding loop without needing an open end. In rigging scenarios, this (or the Span Loop) serves as the primary mechanical advantage point for a Trucker’s Hitch, allowing you to cinch down materials with maximum tension.

• Tethering tools. Use a Running Bowline to secure tools and materials while working at elevation. By tying a short mule tape lanyard to your lift's guardrails, you create a reliable cinching anchor that prevents accidental drops and equipment damage.

How to Tie:

• Method 1: Tie a standard Bowline, then pass the standing line through the loop to create your "lasso."

• Method 2 (Around Objects): If you are tying around a fixed object like a pole or tree, wrap the rope around the object first, then tie a Bowline that "captures" the standing part of the rope inside the loop.

Want to learn more of the greatest Electrican and Construction focused knots? Give this a shot: Top 10 Electrician's Knots

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The Ultimate Non-Slip Anchor:

Unlike a standard bowline, which can slide down smooth surfaces if tension is lost, the running bowline excels as a non-slip anchor. If you are tying around a vertical I-Beam or a column, the cinching action allows it to grip the steel and stay in place exactly where you set it.

Pro Tip: When used for bundling, the Running Bowline requires tension to stay tight, as it can slip if the line is slack. Always secure it with slipped Half-Hitches or keeper knots if the load isn't constant.