The dummy sails installed on Wray Common windmill, Reigate, are made from LVL (laminated veneer lumber).
Timber Trades Journal
notes that the material, Kerto S LVL by Finnforrest
is lighter and more durable than solid timber.
Marton windmill, damaged in recent gales, is to
have its sails repaired.
The wood will likely be sourced from Europe.