The first diningtables of which survivors remain are the type known as refectory tables. They are made usually of oak, and one of the earliest, at Penshurst Place in Kent, has a typical thick top of joined planks supported on three separate trestles.
A table on which meals are served in a dining room
(salvage) collect discarded or refused material; "She scavenged the garbage cans for food"
Rescue (a wrecked or disabled ship or its cargo) from loss at sea
(salvage) property or goods saved from damage or destruction
(salvage) save from ruin, destruction, or harm
Retrieve or preserve (something) from potential loss or adverse circumstances