Want to create a perfectly straight vertical line on your wall? A plumb line is a simple and reliable way to achieve professional results, even on large walls.

✓ Hammer a small nail into the wall at the starting point of your line.
✓ Attach a piece of string to the nail.
✓ Tie a heavy object to the bottom of the string to create a plumb line.
✓ Pull the string taut and secure it near the floor.
✓ Use a graphite pencil to draw a straight line alongside the string.
✓ Apply painter's tape along the pencil line and press it firmly against the wall.

Follow the steps below and watch the video for a detailed demonstration.