The wood Ruler holders are available at JoAnn Fabric Stores.
How many rulers will these hold? I have a LOT of rulers. :o)
There are five slots to stand the rulers in. The board dimensions are about 19 1/2" by 4". I have nine smaller rulers and squares in one board. The larger squares do not stand as well, but they will stand. Longer rulers can hang over the edge. I bought one at JoAnn's with a 40% off coupon. My sister surprised me by having her boyfriend make me two more that have seven slots. The down side, is it takes up space on a table, etc. I really preferr my organizer rolling cabinet. The drawers are not so deep but are long and wide. I think they are perfect!
Forgot to mention, the rolling drawer organizer is about $40. at Jo Ann's. Use a coupon! LOL
I have the same ruler storage and love it. I have very wide window sills in my home and the holder fits on the sill near my cutting table, so close at hand without being in my way. One of my best purchases yet.