How to Use a Level Correctly

Make Sure to Check your Work with a Level before Fastening in in Place

By Mark J. Donovan

When doing any type of framing or construction project it is crucial to check your work with a level. If you don’t you may end up with floors that have a slant to them or walls that tilt in or out.
Levels are also used for smaller DIY projects like hanging a picture on a wall.There are a number of carpenter levels to choose from. There are metal, wood, and fiberglass levels. I recommend purchasing a fiberglass level. They will not bend, become dented, or get knocked out of calibration which can occur with metal and wood levels.

Fiberglass levels may temporarily flex if they are dropped or banged into something but they will return to their straight state after the temporary force is removed.

Two common level lengths are two foot and four foot levels. Two foot levels are perfect for smaller construction and DIY projects, such as hanging a picture. Four foot levels, however, are preferable for construction framing projects as they allow you to check larger spans. You can also attach a two by four to a level using equal spacers on either end to make a long straight edge.

To use a level place it onto the surface you want to check. If you are checking a horizontal surface check to see if the bubble is centered in between the graduated lines in the glass window on the level. Typically for horizontal surfaces you’ll view the center window on the level. To check vertical surfaces again check to see if the bubble is centered in between the graduated lines in the glass window on the level. For vertical surfaces you’ll want to view the windows on each edge of the level. How to use a level correctly

For more help on building a home addition, see’s Home Addition Bid Sheets. Our Home Addition Bid Sheets provide you with the knowledge and information on how to plan a home building project, and what to look for when hiring contractors. They also include detailed cost breakdown tables and spreadsheets for estimating your own new home construction building costs.

Related Information

Additional Framing Resources from

Free Home Addition Price Quotes with No Obligation!

Fill out our 3-5 minute quick and easy form, and receive a free price quote on a house addition from one of our prescreened and licensed home addition contractors. This process is free and there is no obligation to continue once you receive your home addition price estimate.