Width Inches is the desired width of your screen including the frame.  For example, if the width of your screen is 35 3/4", you would enter 35 in this field.  Then enter 3/4" in the Width Fraction field below.

Width Fraction is the fraction portion of your screen width including the frame.  For example, if the width of your screen is 35 3/4", then enter 3/4" in the Width Fraction field.

Height Inches is the desired height of your screen including the frame.  For example, if the height of your screen is 55 3/8", you would enter 55 in this field.  Then enter 3/8" in the Height Fraction field below.

Height Fraction is the fraction portion of your screen height including the frame.  For example, if the height of your screen is 55 3/8", then enter 3/8" in the Height Fraction field.

A crossbar is a bar across the middle of the screen that adds extra support for large screens. To measure the crossbar, measure from the bottom of the screen to the middle of the crossbar, then round to the nearest inch.  Most insect screens do not have crossbars unless the screen is a full window screen for a double hung window.  Most solar screens do have a crossbar.