Step 1: Materials
1 Used Rope, 60m is pretty common for climbing ropes.
1 Tube of Caulk
1 Caulk gun
Needle and Thread
Step 2: Work Day 1-Get Clean
Wash your rope!
You can skip this step if your rope was used primarily indoors. If it was an outdoor rope, washing it is going to be essential.
You want to use a mild detergent. Sterling Rope sells rope wash that you use with a washing machine. You can also wash it by hand. A great way to keep your rope from getting tangled is to tie it into a daisy chain. Look at the photos to see how to tie it, and how to untie it.
Hang it to dry!
This might take a few days. Remember to keep it away from direct sun and all that. Since it's about to become a rug, this may not be that important, but better to develop good habits.
Wait until dry.
Step 3: Work Day 2a-You Spin Me Right Round
Coil your rope. I recommend stitching the start and end of the coil. A few passes through the sheath on each side should be fine. I coiled mine on our wood floor, so I could spin the coil around and keep everything flat.
Step 4: Work Day 2b-Getting Caulky
Smear your caulk all over that rope. I tried to use the caulk gun to get everything in place, but ended up using my finger to get the caulk between the rope.
Let it dry for at least a day. I let it dry for 2. Drying time will depend on where it is, the type of caulk, and so on. When in doubt, read the side of the caulk.
Pro tip: use the caulk gun to cut the caulk tube open. It's made to do that! See photos.
Step 5: Work Day 3-Finish
Add duct tape. First a layer all going the same direction, then a second going perpendicular. This will prevent anything from moving around, or becoming uncoiled.
The tape should hang over the edge, then trim everything down at the end.
Flip it over, the rug is done!