The 18 inch deep sun shelf is almost identical in measurements to ours. It's just the right size for two standard loungers side by side and the depth puts the water level right at the seat level of the loungers. We love ours.
Really? I thought 18" depth would be too deep for loungers but good to hear that it works. My intention was to make it a different depth compared to my other sun deck that is 9" deep. I figured 18" is like a kiddy pool and a nice wading pool for adults to sit and relax.