There is a warehouse, the length measured from the inside is 20m, the width is 12m, and the stock height is 3.5m. How many cubic meters of goods can this warehouse store at most?
有一间仓库，从里面量得长是20m，宽是12m，存货高度是3.5m．这间仓库最多能存放货物多少立方米？
<gadget id="calculator">20 * 12 * 3.5</gadget>
<output>840</output>

<result>840</result>