Spring is here and we are days from planting and I still don't have shelving in the greenhouse. Luckily I was gifted some wire shelving but I'm not able to use a single set of six foot shelves. My whole greenhouse is barely that tall - and only in the middle!
So I got out my angle grinder with a cutting blade on it and cut the legs down to usable sizes and then 'strapped' on some reinforcement. It may not be the prettiest, but it was quick and cheap (things dear to me) and anyway, I've made worse. And no doubt I will make worse again.