I use my Rowenta on a regular ironing board that I made a topper for out of plywood (24x 48) covered with batting and mylar that sits on top. It doesn't shift around because my husband used 1x2 strips to make a track for it to fit.
I haven't had any problems in using it these last 2 -3 yrs.
I love the larger space for pressing fabric after it's washed.