I use them Doubled up  on patio for the intense west  sun .   I did try  just one.   But two was nessary to endure the heat.    I have had them two years now.   held up well except  where the legs are starting to come unweaved.  I taped with gorrila tape and it worked.    I will order  another pair,  when available again.   thanks.    Sun and Arizona  endured the 117 degree weather.    thank you.   Used City sand bags  to keep  up from the  wind.