You need a level tool.
- Perpendicular – When 2 lines meet – creating a 90 degree angle. For example the top of the letter "T" is perpendicular to the rest of the letter.
- Parallel – When 2 lines travel forever in the same direction never intersecting. For instance the two lines in an equal sign "=" are parallel to each other.
- Level – Having a perfectly horizontal or vertical surface. Meaning you have an even or flat surface.
Level Tool: Spirit level or bubble level – The most common type of level
Without leveling your project you will have crooked fireplace doors.
Using a Level:
Look at the level.
- You'll notice tubes filled with liquid and a floating bubble.
- Each tube has 2 lines near the center.
- The surface is level when the bubble floats between the two lines in the tube.
- The horizontal tube(s) is parallel to the body of the level tool.
- The vertical tube(s) is perpendicular to the body of the level tool.
- Set the level on the surface horizontally. The horizontal tube is parallel to the surface.
- Look at the horizontal tube.
- The bubble indicates which direction your surface is slanting.
- When the bubble lines up between the two line your surface is flat or leveled.
- Hold the level against the vertical surface
- The vertical tube is perpendicular to the surface.
- Look at the vertical tubes.
- When the bubble is lined up between the two lines your surface is vertically level