Using a flexible measuring tape, measure the distance from hole to hole in the chair frame. Make sure to go around the outside of the frame just like the strap is installed. See the diagrams below for the different methods and wraps for attaching vinyl straps to the frame.

If you have double wrap make sure the measuring tape wraps around twice just like the vinyl. If you don't have a tape measure, use a piece of string and measure the string.

PLEASE NOTE: It is neccessary to reduce the length you have measured in order for strap to be tight after it is heated and installed. The formula we recommend is to reduce the measurements by 15% then add 1 inch.

Example- measurement 30" x .85 = 25.5 + 1"  (Click here for more info!)

SINGLE WRAP The vinyl strap wraps 3/4 of the way around the frame. You can see the end of the vinyl. This style can use a plastic rivet. Check to see if the hole in the frame is drilled or pierced. Square frames use an E clip or S clip.

DOUBLE WRAP The vinyl strap wraps around and on top of itself. The end of the vinyl is hidden. This style can uses a plastic rivet.

SLOTTED CONVERSION The frame has a rectangular slot that the vinyl is inserted into. You will be drilling a 1/4" hole in the center of this slot and use a plastic rivet to attach the strap.

Plastic Rivet	Aluminum E Clip	Steel Tab Clip	Vinyl is notched on the ends and fits into a rectangular slot in the frame of the chair.