Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to hang blackout curtains [title] Measure the length of your window frame. [step] Hook a tape measure on a top corner of your window frame and pull it down to the bottom edge of the frame. Then do the same on the other side and in the middle, in case your window is not perfectly square.

Ending1: [substeps] If you're hanging curtains vertically, there is no need to measure them. The frame measurement is generally somewhere around 2. Ending2: [substeps] Make sure you know how many pieces of tape you will need. Do not over measure or you could damage the frame. Ending3: [substeps] Try looking at the sill of your house and estimate the dimensions. Two or three inches of sill are ideal. Ending4: [substeps] If you already have a curtain rod, you only need to measure from the curtain rod to where you want the curtains to end. If you do find that your window is a different length on 1 side, keep the longest measurement.

Answer format: ending1/ending2/ending3/ending4