Comfortable shower bench
I'm trying to come up with a design for a teak shower bench that is as comfortable as possible to sit on. It is going to be almost 4 feet long. The rest of the dimensions and choices are
height - 17.5"
depth - 17"
typical slats run from side to side (so lets ignore edge detail)
slat width - 3/4", 1",????
gap between slats - 1/2"???
shape of bench - Could be flat, or the more central slats could be slightly lower?
Too many choices! I'd appreciate any suggestions you have.