Sonostar's 3V 4/9 Megahub Kit is designed for DIY'ers who want to cut and drill their own struts to make their domes. This configuration is 4/9 of a sphere, so just less than a hemisphere - the standard shape of most domes. It has a flat base, so it sits squarely on the ground. Using the Sonostar Megadome Calculator, you can quickly compute the four different strut lengths for any diameter of dome that uses Sonostar hubs. The 3V 4/9 can be built as small as 1 meter (3.3') across, or as large as 10 meters. It is a popular configuration for greenhouses, animal pens, and shelters.
Click the button below to calculate the lengths and quantities of 3V 4/9 mega dome struts:
mega dome calculator
3V 4/9 Mega Hub Kit Includes: