This is the rack I made to hold my Bailey hand planes (among other things).
It's made of a 32x32" section of 1/4" birch plywood with dividers and retainers
made of yellow pine screwed and glued to the surface. The dividers are 3/8"
wide by 1/2" tall (deep), and are cut in length to match the profile of the
plane to the left. Each upper and lower retainer was custom cut to fit the
width and shape of each plane. To remove a plane, you simply slide it upwards
until the bottom edge clears the lower retainer, pull out the bottom edge and
slide back down.

Notice I also left a spot for a No. 1 Bailey, but at the prices those things
sell for I doubt I'll be getting one any time soon... :-)

I'm posting both full-size and reduced-by-half pictures for the bandwidth
challenged.