Use a measuring tape to measure the exact width of the treadmill.

STEP 2

For measuring length, there are three general ways to do it. If you have adjusted the belt as much as possible, return it to normal tension before measuring.

 a) Put the belt under the front cylinder (you'll need the engine cover and for God's sake disconnect the treadmill first). Once you have the tape on the back - sticking out of the back cylinder - it helps if you have a friend - pull the tape around and measure it tight and tight. 

b) If you do not want to use the existing belt and longer, carefully cut it to width. Lay the belt flat and measure from one end to the other on one of the edges of the belt. This will give you the exact belt length. 

c) Another method is to use a piece of twine or twine.

STEP 3

Glue one end of the string to the treadmill and rotate the belt all the way until the string loop is complete.

STEP 4

Cut the string exactly at the end of the loop.

STEP 5

Remove the cord from the treadmill and lay it in a straight line.

STEP 6

Measure the entire length of the string, that is the length of the belt.