:Width
Measure the width of the window at the top, middle, and bottom.
Record the narrowest width measurement to ensure a proper fit.
 
Height:
Measure the height of the window on the left, center, and right sides.
Record the shortest height measurement.
 
In your Myscreenkit box you will find the following:
(4) 1" Aluminum pieces mitered at 45 degree angles
(4) Aluminum internal corners 
(1) 3/4 Aluminum cross bar
(2) cross bar clips 
(4) 3/4" color matched hex screws with a 1/4" hex head
(1) roll of spline
(1) roll of solar screen material of choice
(Roller tool not included)