Please note that all the different brands of truss do not have the same circumference. We have seen 12x12" box truss measure anywhere from 44" to 48" circumference depending on the manufacturer. Measuring the circumference of your truss for custom truss covers is easy. You can use a flexible tape measure if you have one (see below). Another option is to wrap a string around the truss, mark the string and lay flat to measure with a standard tape measure.
When placing orders for custom printed truss covers please let us know the make and model of your truss or the truss circumference.