What is the FORCE (in Newtons) that air exerts on the top of…

What is the FORCE (in Newtons) that air exerts on the top of a block of wood that is 1.80 m long and 1.00 m wide? (The atmospheric pressure of air is 1.013 x 105 Pa) Report your answer as a number with correct sig figs but know that it is in the unit of Newtons.