https://www.amazon.com/dp/B01N120P4L
instead of using a 2m section plus a 1m section, we could use a 2.5m section plus a 1m section (to get an extra 0.5m of height). And for the horizontal span, instead of using two 2.5m sections, we could use three 2m sections (to get an extra 1m of width)
