The Grand Dictionnaire routes enquiries for shank board to the shoe board page. Both the Termium and Grand Dictionary give "carton à chaussure" and the Termium also gives "carton pour chaussure."


American Leather Chemists Association: Dictionary
Shank: That part of the shoe that comes under and supports the arch of the foot. Shank also refers to leg positions of hide pattern. (See Fig. 1.)

Shank Piece: A reinforcement for the shank, placed between insole and outsole, usually made of metal, wood, leather, or fiberboard.
http://www.leatherchemists.org/dictionary.asp

Board Lasted Board lasted shoes have a sturdy insole board running the entire length of the foot bed. This type of construction provides the greatest stability
http://shoesglossary.com/index.php?a=list&d=1&p=1&w1=B

Shank board is used in the shoe industry for supporting the sole of the foot, so medium levels of hardness, folding, and stiffness are required. In this study, shank boards were made using unbleached kraft pulp and old kraft bags with the sequential addition of 18-20% synthetic latex , 1.0% epoxy resin, 15% clay, 1.0% regulator, and 1.0% wet-end coagulant. Then using a hot press, boards of 3000 g/m2 were produced. Results show that shank board had hardnesses which ranged from 95 to 98 and densities which ranged from 0.99 to 1.06 g/cm3. To increase the board folding, 2% water-based polyurethane was added to the board, and the 90° angle folding test for more than 15 times was achieved. This result is better than a Canadian product (10 times). The approximate production cost of shank board (90 x 150 x 0.25 cm) was NTD 40(~USD 1.153)/piece, which is acceptable for middle- and small-scale paper mills.
http://www.tfri.gov.tw/enu/pub_science_in.aspx?pid=400&catid...

Shankboard for insoles [This is a French company's website. Every page has been translated into English. However, this English page does not have a corresponding French page.]
http://www.carton-jean.fr/index.php?page=shoe&lang=en

Shoe's Shank board (09/01/2005)
Specifications: Green board (low grade) 0007 We offer shoe's shank board and insole board. Shoe's shank board are making of O.C.C. materials. But orange board & grey board are in waterproof quality. It is suitable to man leather shoes, sport shoes, sandal and so on. The material is of good ventilate and stick feature, it also can 100 percent control bacilli and rapidly absorb or put off air and water. It doesn't expand or shrink with steady quality.
http://www.tradenote.net/shank/

Shank board
Paperboard
carton pour chaussures
carton à chaussure
http://canada.gc.ca/cgi-bin/termium.pl?lang=e&stt=&op=a&kl=X...

carton à chaussure n. m. – shoe board
Définition : A hard board of highly compressed wood pulp and leather clippings used in making soles and heels of shoes.
Board used in the manufacture of shoe components, for example, leatherpulp board, brown mechanical woodpulp board or brown mixed pulp board.
http://www.granddictionnaire.com/btml/fra/r_motclef/index800...


flbreboard - sheet material commonly used for insoling and heel lifts made of cellulose fibre obtained from wood pulp, or from re-processed cardboard, wrapping papers, etc. The quality is closely controlled and graded according to laboratory tests. grade 1 for seat board and **Grade 3 for shank board**. There is no Grade 2. See also cellulose board and non-woven insole board.
http://www.maxheels.de/resource/faq.shtml