Are single concrete blocks sold at placemakers and how many would be needed to hold the base down in heavy wind?
If anyone has other ideas to hold down the base (including using wood, cement) please do share.

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sleepy: Would possibly be better with a hole drilled into concrete that pole just slides into
Stands may blow over
wellygary: If he owns/leases the space then just dynabolt the steel base to the ground and drop the flag in to the base each morning,
Just make sure its on his land and not on the public foot path, otherwise he will get a very nasty visit from the council..
“We’ve arranged a society based on science and technology, in which nobody understands anything about science technology. Carl Sagan 1996
mattwnz: [
But more dangeous tripping over a bolt in the ground if the pole is removed eachtime. OSH problems I think.
Dingbatt: The car in the picture will be putting about 200kg onto that baseplate. A concrete block maybe 8kg? A 10litre paint pail full of water 10 and a bit kg? If you can't secure it to the ground then maybe a 25kg bag (or two) of sand. A sandbag has the benefit of not falling off the baseplate if it does start to tip.
MushroomsNZ: How about a concrete sun umbrella stand?
You can never have enough Volvos!
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