I needed weight for a 10x10 foot dome and from what I found online the minimum weight per support should be 24 pounds. Plate weights are $24 for 24 pounds or $100 for all 4 legs. I spent a total of $30 on these bags including gravel and some rope. I was able to get about 1.25 cubic feet (3 medium sized bags) of fine gravel in all 4 bags, bringing them to 24 pounds. I can probably gain another pound or two once things settle down, but I think 24 pounds. It will be fine for me. Then I tied ropes to the pockets and to each corner of the shed. I think this should work.
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