All the lengths of pipe for the triangles that make up a geodesic dome are not the same. There are trigonometric equations used to calculate the different lengths, but to make it easy, we've incorporated all that into a few simple calculators. Because the calculators need to allow for the width of the hubs, we have separate calculators for Standard Hubs and Megahubs. There are also separate calculators for Standard Spheres and Mega Spheres. Remember when you input your size, that the calculator is looking for the RADIUS, not the diameter. The Radius is always half the diameter. It is the measurement from the middle of the dome's base ring to the outside circumference.
USE FOR ½" PVC
USE FOR 1" OR 1½" PVC