How to use a laser level for framing?

Laser levels are key to successful framing.

According to Aaron Barnett of BangingToolbox: As a framer, you know you cannot align your wood in any better way without your laser level with you.

Imagine the convenience of having a continuous reference line and the projection of a perfectly vertical and horizontal beam with one push of a button.

You can create seamless wall studs and maintain the quality required to build within accurate tolerances with a reliable laser level. But not for a beginner.

You will never know the consequence of improperly using a laser level when installing wall studs until you find a wall leaning in different directions, out of square, and with a twist.

One can encounter many challenges when using a laser level for framing for the first time.

And even for the experienced, any mistake made from the start could affect the entire project and lead to wasted effort and resources.

For this reason, we made a comprehensive and easy-to-follow guide to help you maximize the potential of your laser level when framing your house, shed, or garage.

Here’s how to use a laser level for framing.

Step 1 Choose the appropriate laser level for framing.

Using the appropriate laser level can help you perform better and help your leveling job go smoothly.

With the right laser level, your alignments and framing layouts will be accurate. Also, the correct laser level type will cover the needed coverage and provide even greater visibility with squaring and straightening options. 

Line laser level

A line laser level can project needed vertical and horizontal beams for cladding and wall lining, but for framing and aligning studs plumb, the lines are not always helpful.

Line lasers emit long continuous lines that can cover a big coverage area in a room. The tool can project multiple lines and offer various setout layout options.

The measuring laser line is pretty straightforward and suits the requirements of straightening and squaring frames on the ground as a floor plan.

You can plumb walls, but this is only possible if the surface you are projecting the line onto is also plumb in the opposite direction.

Not knowing this is the biggest chance of making a mistake with a laser level.

You need to use a plumb dot that is plumb in more than one direction, like what is also offered in 5-point laser levels.

Dot laser level

A dot laser level is most appropriate for framing jobs that require verticle plumbing in corners since framing corners require point-to-point accuracy.

The tool works for marking specific reference points like stud placements and straightening and squaring bottom plates to set out the floor plan on the ground if you also have horizontal dots.

You can use it for making vertical alignments or marking plumb lines. Dot lasers are the most accurate lasers because the dots reference precise points perfectly square, level, and plumb to each other.

A line laser is better for straightening and is often thicker, so less accurate on the plumb cross point of the two lines compared to a dot laser point.

Combination laser level

A more common laser-level technology is the combination of line and dot laser levels.

You can enjoy the versatility of projecting horizontal and vertical beams and laser dots with a single laser level tool.

A combination laser level can launch a series of continuous lines that can cover a greater area needed for framing than a laser that only has dots.

Rotary laser level

A rotary laser level is used for leveling the ground and finding the finished floor level of a building when pouring concrete.

The convenience a rotary laser level has is that you have a sensor on a stick that quickly finds a level height from any point outdoors.

The rotary laser level does not have a visible laser and is specialized as an outdoor tool for excavations and groundwork.

There is also an indoor laser level that can project a 360deg visible horizontal laser line. The laser inside the casing may spin like a rotary laser but often gets confused with the outdoor tool.

An indoor 360deg laser is used for setting out ceiling heights and building suspended ceilings.

This can also be done with a line laser level, though if you place it in the corner of the room.

Step 2 Set up your laser level.

Place your laser level on a stable surface or a tripod.

Ensure that even the tripod is level within tolerances itself so that the laser level can provide the self-leveling feature.

Turn your laser level on and wait for it to project a laser line or dot. If the lines and dots are flashing, then the line is not able to self-level, and you need to adjust the mounting position.

Test your laser level on different sides for accuracy. Discontinue if you find an unacceptable error range. 

Project the laser level on your desired area for layout.

Once your laser level is set, proceed to the next step.

Step 3 Mark the floor plan set out on the ground

From the plans, you have, you need to mark the lines for your framing to sit on the floor, along with door openings.

You can start by projecting a grid line onto the floor, this could be indicated on the working drawings, or you could create your own.

You want to use your laser level to create a permanent cross line on the floor as the grid line by going over it with a red chalk line. This grid line can be measured back to or from to make all walls parallel and square from the single reference.

A cross line or dot laser can create this gridline. I would start by creating an offset line from the longest wall to be installed. Then make a straight line going in the opposite direction in the middle of this line.

Measure and mark all of the walls onto the floor from the grid line. If the foundations or existing parts of a building are out of square work out how you can make adjustments so that the majority of the new build is square, you might have to sacrifice a corner or split the difference on a few walls.

Step 4 Ensure the floor is level.

The first thing you want to do before leveling studs vertically is to see if the ground is level. Otherwise, all your other framing installations will be off.

First, clear the framing area of rocks and debris. Establish reference points on the area you will work with. 

Go back to your laser level and project a horizontal beam close to the ground to measure down and check the levelness of the floor. Project this beam on the area where you will set your layout for framing. 

Using a measuring tape or your leveling rod, measure the height differences on the various reference points you have set on the ground.

Take note of the high and low spots so you can perform the necessary adjustments.

You can mark the ground with paint and a  + and – symbol, and a unit of measurement so you can clearly see the low and high points. You can measure your studs to suit.

Step 5 Build the frame and install the studs

If you haven’t yet cut your top and bottom plate, simply measure the ground layout you have marked and cut the top and bottom plate to suit.

A). Build the wall frame on the ground

If you need to build your wall frame before standing and installing the wall, or if you need to adjust the framing, measure and mark stud spacings according to your stud centers on both the top and bottom plates while both are lying on the ground together. You also need to mark the door and window openings to indicate where the trimmer and trimming studs are going to be located.

This measurement is your dedicated stud spacing. You can separate the plates and cut and fit the studs between them while the new wall is lying on the ground before standing it up.

B). Level and mark succeeding wall studs in place.

If you are building a wall in place between two floors, you can install both the top and bottom plates first and measure and cut the studs in place.

Start with one end and mark stud spacing as a running measurement – this means adding the spacing onto each measurement with your tape hooked on the end of the wall the whole time. This is more accurate than adjusting your tape on every stud spacing.

If you’re a little bit off on each measurement, it will add up to a lot, and your wall linings won’t align with the stud centers otherwise.

Also, take the chance to measure the length of your studs at this point. Cut them and install the timber in place with a nail gun or your framing hammer.

Nogs or Dwangs

Make sure that you have installed rows of nogs at the required heights.

Take note that you should leave the nog out from each end of a wall. The end nogs should be measured and cut to make each corner plumb at the end when all the wall frames are standing in place. You might need to cut some nogs longer or shorter to make the corners straight.

Step 6 Align or mark the wall’s top and bottom plates.

Before plumbing wood studs one by one, you need to start with plumbing the top and bottom plates to each other.

This will depend if you’re building the bottom ground floor with no roof yet or building walls between two floors.

The bottom plate should align with the lines you have marked on the floor, so you now need to determine where to position the top plate.

Builders usually do this by creating an offset line that is square and straight with a line laser or a dot laser.

Then by measuring back the same offset measurement, you can determine where the top plate should be positioned.

You will be projecting a vertical dot from the floor to the top of the framing, enough to make your top and bottom plates plum to each other.

Mark the corner framing against the new one with the position your laser level has projected. Then use a timber cross brace to hold the framing in the right position by screwing or nailing both ends of the timber.

You need to plumb every wall and corner both ways with a laser-level dot before securing the wall framing with a temporary timber brace.

Step 7 Fasten the plates down.

If you have already set thread rod In your foundation, you would have already needed to drill your bottom plates to sit over the rod. But now you can put a square washer on the end and secure the timber down with a nut.

You can attach the sill plates down with dyna bolts or anchor bolts. Use a corded or cordless rotary hammer drill to bore out the concrete for the bolts.

Make sure you use your laser level to inspect alignment is straight.

Alternatively, you can use a string line from the two corners you have positioned.

Or better measure back from an offset line. That was created from the gridline made from your laser level.

Step 8 Install corner nogs

Once you have installed all the walls, you can straighten and plumb all the corners and cut the corner nogs.

Set your laser level up in one wall corner at a time on a 4-inch offset.

Measure the distance between the wall framing and the laser level, and cut the nogs to the measurement required to push or pull the wall to the 4-inch offset.

This will make and hold the corners straight. The top plates should be held in the right place from the timber braces; however, if some need adjusting, do this first before cutting the nog.

Step 9 Inspect your work.

Remember to check at the end of framing a house that the stud spacings are right and that windows and doors are framed in the right position and built to the right size. Check hold-down bolts have been installed and that all corners are straight and perfectly up and down with a dot laser level. 

Make it a habit to inspect while installing the wall framing. But if multiple carpenters have been working, you need a single person to go over and check everything.

Observe each line and refer to your laser level and make necessary adjustments. Fix things early so you won’t have to repeat your work when linings and claddings have already been installed.

Quick tips from Banging Toolbox

Now you know how to maximize your laser level’s potential when framing walls, practice leveling to get to know your tool.

Make it a habit to check your tool’s accuracy. And always secure your laser level on a stable and level surface.

Protect your laser level with regular maintenance. Also, you can utilize a receiver when leveling outdoors.

Do not forget to adjust your layout for openings like windows or doors. And the most important tip is to always check the corners for plumb with a dot laser before cutting and installing end nogs.

Lastly, have a look at the green laser levels that we recommend for framing.