Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to preserve a cedar fence [title] Take a surface area measurement of your fence. [step] Use a tape measure to measure the length and height of your fence, then multiply these numbers together to get the surface of your fence. Measure the length of your fence and the height, and multiply these numbers together to get the surface area.

Ending1: [title] Measure again to get the dimensions of your fence. [step] Use a tape measure to measure, but do not score the area if your fence is on a horizontal surface. Ending2: This is the basic area of the fence. [title] Cut a second section off of the previous strip. Ending3: [substeps] Multiply the surface area by 2 if you're treating both sides of the fence. [title] Buy an oil-based, semitransparent wood stain for a basic treatment. Ending4: [substeps] This number is two times as long as your conventional measurement. The difference of the surface area and height determines the fence's strength.

Answer format: ending1/ending2/ending3/ending4