trestle

noun

• a framework consisting of a horizontal beam supported by two pairs of sloping legs, used in pairs to support a flat surface such as a table top.
• short for trestle table.
• (also trestlework) an open braced framework used to support an elevated structure such as a bridge.
• (also trestletree) each of a pair of horizontal pieces on a sailing ship’s lower mast supporting the topmast.