And just so everyone can see white oak I took a picture of the oak slats with the reed behind it. You can see how much stiffer it is than the reed, and thicker..... It's really fantastic.
EDITED TO ADD:
"The next best is pounded ash, it comes on a roll is smooth, strong
and you only have to cut to length. The con is that it is pricy and
boning one set of stays can cost up to 75.00. Available from Nates
Nantuket Baskets http://www.basketshop.com/index.php
the website, you need to call. It is 25.00 a roll for 25 feet."
From the 18th century woman's list - a link to buy it!