Daisy Chain an Extension Cord




Introduction: Daisy Chain an Extension Cord

Keep your extension cords easy to use - a daisy chain is both easy to 'assemble' for quick and neat storage, and it's easy to undo so that you can use the extension cord at the drop of a hat (and not worry about frustrating knots).  This technique works on anything - extension cords, ropes, boat lines, air hoses, etc.  I've never seen a garden hose daisy chained, so I don't know if that would work or not....

Prior to knowing how to do it, a daisy chain always seemed like magic to me; it seems like it's neatly knotted up, but then pull one end and it all comes [neatly] apart.

An additional advantage of doing a daisy chain is that you don't necessarily need access to the ends of the rope/line/cord.  In other words, if you have something like a shop-vac, where one end is attached to the appliance, you can still 'daisy chain' the cord (I don't know if 'daisy chain can also be a verb, perhaps the right nomenclature would be 'tie' a daisy chain).

I'm a lefty, so you righties out there may want to mirror this.

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: Find the Middle, Tie a Looped Overhand Knot

Find the middle of the extension cord and tie an overhand knot leaving a decent sized loop.

Step 2: Loop Through the Knot

Next you pull a short section of the extension cord thorough the loop generated by the initial knot.

Now repeat what you just did.

I used one hand in these pictures to show the routing to show the routing of the extension cord.  In the next steps, the cord is doing the same thing (i.e. going through the existing loop in the same manner), but I'm using two hands.  As you'll find, using two hands is much easier when executing a daisy chain.

Step 3: Repeat

Here I'm doing the same thing as in the previous step, but using two hands.

As the 'new' loop comes through the 'existing' loop, I grab the new one with my right hand, which is carrying the weight of the newly formed daisy chain (as you continue, this will become the heavy end).

The idea is simple: feed some cord through the existing loop to form a new loop.

Step 4: Keep Repeating

Here I'm doing the same thing as in the previous step, but just a little differently to illustrate the movement and routing. The cord is going the same route as in steps 2 & 3.

Step 5: Terminate the Daisy Chain

Terminating the daisy chain doesn't involve anything radically different than what you've been doing, but you just pull the end through and tighten.

You're done - stow the cord!

Step 6: Undoing the Daisy Chain

Undoing the daisy chain is just a matter of unlooping that last end that you pulled through, and then continuing to pull - all of the loops will undo themselves.

If you start pulling, but the cord doesn't undo itself (i.e. it tightens down onto itself),  you've un-done that last loop wrong.  There's only one closed loop holding the entire chain together (ignoring that initial overhand knot that you made in the middle).  Thus, each loop should essentially undo itself.

Step 7: Undone Daisy Chain = Ready to Use Cord

If you take a step each time a loop unfurls (so you're not just unfurling the cord onto itself), you'll end up with something like this.

I made it at TechShop! An extension cord is no good unless you're going to use it - TechShop has all kinds of fun tools that you can plug into the cord and build awesome stuff with.  Check 'em out: www.techshop.ws

Be the First to Share


    • First Time Author Contest

      First Time Author Contest
    • Space Challenge

      Space Challenge
    • Scraps Speed Challenge

      Scraps Speed Challenge

    4 Discussions


    4 years ago on Introduction

    Looking at the very first picture, it looks like every loop in the daisy chain has to be individually undone.


    6 years ago on Introduction

    Warning: I have read that daisy chaining can cause the cord not to lay flat and can then become a trip hazarded.


    6 years ago on Step 7

    Thanks! So glad you're a lefty too, it made this so easy for me!


    6 years ago on Introduction

    Saw this somewhere many years ago and have to say it REALLY works! Thanks for posting it here.