Birch and Oak are the only two types of wood I've seen used for 12" rulers. I have seen Pine and Fir used for yardsticks or metersticks. Boxwood was a very popular wood for use in rulers due to its fine, straight grain.
traditionally boxwood
wood resin is a type of wood the egyptians used to make wood carvings:)
any type of wood
Wood
oka
morning wood
Maple
coookies
Western Cedar.
Ash or maple.
Pianos are typically made from some type of hardwood. The most common varieties used are the wood from maple or beech trees.
The ark of the Book of Genesis in the Holy Bible was constructed of Gopher wood.
Common rulers are typically made from wood, steel, or plastic. Some wood rulers include a metal strip to serve as a straight edge.