So on my level patio table it's 16.5 cm (blank 1/2 plastic on ruler before measurements begin). Which is 6.5 inches. On lawn its a bit all over the place but the most level I could find was 15 cm, 6 inches
Well as everyone said round here, ridiculous top up here in Chartham Canterbury. Going out for long dog walk early to get pics. If the sun shines on this lot it will be blinding.