Choose your shape
square rect circle ellipse
units  dimensional:  weight:  density:  ozs/in 3
rectangle
  Height Volume Weight
  in in3 ozs
^ 20.000500.00748.80
  19.875496.88744.12
  19.750493.75739.44
  19.625490.62734.76
Z 487.50730.08
  19.375484.38725.40
  19.250481.25720.72
  19.125478.12716.04
^ 19.000475.00711.36
Z step:  
  Area
      in 2
^  X   ^
3.00 4.00 6.00 7.00
^ 7.00 21.0028.0035.0042.0049.00
  6.00 18.0024.0030.0036.0042.00
Y 15.0020.0025.0030.0035.00
  4.00 12.0016.0020.0024.0028.00
^ 3.00 9.0012.0015.0018.0021.00
X step: Y step:  
Shape
perimeter
minimum fiber needed for:
1st layer 2nd layer 3rd layer
20.0 20.5 21.0 21.5