To work out the back measurements for your Wall Angle Corner void Filler first you must find the measurement of the hypotenuse. In the below case the hypotenuse is -
√340²+340²= √231200 The square root of 231200 is 480.8
or √(340x340)+(340x340) = √231200 So the hypotenuse equals 480.8
or √115600+115600= √231200
This formula only works for 135 degree (45 degree ) walls.
So from here to find the measurements of the back widths we take the depth of the panel from the hypotenuse (480.8-340 =140.8) and then add the width of the panel (140.8 +16 =156.8)
The above image is the end result with the angles cut.
To order this -
1. Enter the height (750)
2. Enter the left back width (157 rounded up from 156.8)
3. Enter the left Panel Depth (340)
4. Enter the right back width (157 rounded up from 156.8)
5. Enter the right Panel (340)
6. Job done.