How much tape to wrap a 12' pole?

I want to use a decorative duct tape (e.g.) to wrap three 12’ bamboo fishing polestogether. If it helps, here’s exactly what I’m wrapping. But instead of the one pole in the picture, I have three to bind together (darkness notwithstanding).

The combined base of the three poles runs about 6", but they taper as they go up. The duct tape is about 1.88" wide, and I assume there will be some overlap between windings as I go up.

I’m doing this by hand, but since I haven’t wrapped something like this since I failed out of the NHL in second grade I don’t know how to account for things. About how much tape length-wise should I be looking to get?

Looks like you’ll need about 40 feet or three rolls of what you linked, provided you’re able to keep the wrappng smooth and consistent. With the ever-changing diameter, I’d expect some wrinkles here and there. And assuming you get the stuff to stick - the reviews aren’t too promising, especially for something to be used outside.

My length assumptions are based on this:
http://www.mercotape.com/html/coverage100lf.html

If the taper is uniform, assume the average circumfrence at the midpoint. Determine hoe many inches the tape advances with each wind, and divid that into the length, to determine how many winds. Then consider a right triangle. The base of the triangle will be the sum of all the circumflrences of all the winds. The height of the triangle will be the length of the polies. The hypotenuse will be the length of necessary tape.

Lets say the midpoint circumference is 4 inches, and the tape advances one inch up the poles with each wind, and the poles are 72 inches long. You will need 72 winds around a 4 inch diameter, so your right triangle will be 72 x 288, with a hypotenuse of 296 = length of tape. Just an example. Make your winds at a steeper angle to reduce the tape needed.

What gotpasswords said, except I’d expect a lot of wrinkles. Why not try this.