I''ve been wanting to make a tunnel style dome for a while because there are a number of situations where a dome just can''t be used. Like covering swimming pools and grow beds that are long rectangle shapes. The design and build went pretty smoothly but I did find that this type of structure was more complicated than the average kit I produce, most of the extra work is fitting the square base panels to the dome structure. I will be adding a 4.5m and 6m versions which should actually be easier to build because they don''t need the riser wall.
Here''s a couple of pictures:
The doors was fitted into the end which worked fine for this project but I did work out a way to put the door in the middle if the tunnel section which would add more flexibility to the design.