How To Measure Floor Level With Laser?

Last Updated On December 6, 2021 By Elliot

Measuring floor level with laser is easy; you just need to set up your laser range finder at a distance from the surface. The only problem with this method is that it requires a lot of space to set up your laser device.

For flat surface flooring level laser can measure it with ease, but for uneven surfaces like stairs or ramps, measuring them becomes difficult and time consuming.

In such cases, there are other methods which will help in determining the exact height of any object on the ground. These include using an inclinometer, tape measures, etc.

But these methods require more effort than setting up a laser range finder. So if you want to know how to measure floor level with laser range finder then read further.

How to measure if your floor is sloping, level or sagging?

To determine if your floor is sloped, level or sagging, you need to use a laser level. This tool is a must for construction projects.

It can help you calculate the accurate angle of elevation, The laser detector will be placed perpendicular to the slope. It will emit a beam of light towards the target area.

If the floor is perfectly horizontal, the emitted beam should hit directly onto the center point of the target. But when the floor slopes, the beam will not reach its destination.

Instead, it will reflect off the wall and come back to the sensor. In case of a steep slope, the reflected beam may even go beyond the edge of the sensor.

Here some steps to follow :

Step 1. Set up your laser range finder at a suitable distance away from the floor. You can place it anywhere near the middle of the room where you plan to install the new floor.

Step 2. Place the LRF so that it’s perpendicular to the slope. Make sure that the sensor is facing downwards.

Step 3. Turn on the LRF and wait until it emits a green dot. If the dot appears right above the center of the target, then the floor is perfectly horizontal.

Step 4. Now move the LRF slowly along the length of the floor. When the dot starts moving down, it means that the floor has started tilting downward.

Step 5. Once the dot reaches the bottom of the screen, stop moving the LRF. Then take note of the number displayed on the display unit.

Laser tape measure and measuring tape can also help you figure out whether the floor is sloping or not.

The laser tape measure works by emitting a red laser beam across the entire width of the tape. As soon as the beam hits something solid, it reflects back to the sensor.

This reflection causes the sensor to count one pulse every second. By counting pulses over a period of time, we get the total distance covered by the laser beam.

Measure floor slope using a clinometer

Clinometers are used to measure slopes in many different industries. They range in price from $50-$500 depending on features and complexity.

There are many online calculators that can be used to find your floor slope. in UK many companies provide free tools to their customers.

You just have to enter the dimensions of your room and select the type of floor and click “calculate” button.

Once done, you will receive the results showing the degree of slope.

Using this method, you don't need to buy expensive equipment. All you need is a ruler and a protractor.

How are laser levels calibrated?

Laser levels are calibrated using a series of precision tools called calipers. Calibrated levels are used to ensure accuracy and consistency when transferring measurements from one level to another.

If the level is not calibrated correctly, measurements could be off by thousands of an inch. This would result in inaccurate calculations for building projects like framing walls.

Calibration involves taking several readings from each side of the level's bubble window. These readings must fall within 0.001 inches of each other before they're considered valid.

In addition, calibration requires checking the level against known standards such as plumb bobs, spirit levels, and steel plates.

What are the other types of laser level that you can use in any carpentry project?

Using laser level for outdoor project and indoor construction projects is a great idea because they don’t have to worry about dust particles getting into their sensors. They work well under all weather conditions.

There are many different models available in the market today. Some of them cost less while others offer better features. Here are few popular ones:

  • Self-leveling laser level

The self leveling laser level are easy to set up and operate. These devices usually consist of two parts – an emitter and receiver.

They are designed to detect objects such as walls, ceilings, floors etc. Using this device, you can easily check the height of various surfaces around your home.

You just need to align the transmitter with the surface you wish to measure. After doing this, turn on the power switch located next to the transmitter. Wait till the indicator lights start blinking.

  • Cross line laser level

The cross line laser level can use for both interior and exterior applications. It consists of three main components – a base plate, a detector head and a transmitter.

The base plate holds everything together. This includes the battery pack, the control panel and the transmitter.

It comes equipped with a built-in rechargeable lithium ion battery which provides long lasting operation. The detector head contains four infrared LEDs and a photodiode.

  • Laser level with tripod

Laser level tripod are used when working outdoors. They come with a sturdy metal frame and rubber feet.

These devices allow you to position the laser level accurately without having to hold it manually. All you need to do is attach the tripod to the desired spot using screws provided in its legs.

Once done, simply press the button on top of the tripod and adjust the angle accordingly. Laser levels with tripods are ideal for jobs like framing windows, installing doors and building decks.

  • Manual laser level

Manual laser level are commonly used for DIY purposes. You will find these tools at most hardware stores.

Manual lasers are inexpensive but require some practice before being able to use them effectively.

To make sure you get accurate measurements, always keep the laser level perpendicular to the target surface. Also, be careful not to move the laser too quickly.

If you do so, you may end up hitting yourself instead!

  • Outdoor laser level

Outdoor laser level are used in outdoor construction applications, especially those involving concrete or asphalt.

Most of these devices contain a powerful LED light source along with a high precision optical system.

Some also include a digital display screen where you can view the current measurement value. Others even provide audible alerts if something goes wrong during measuring process.

  • Auto level indicator

Automatic laser level is not a cheap product, however they have become very common over time.

Most auto levels feature automatic calibration that allows users to take precise readings from any distance.

This makes them perfect for indoor and outdoor projects alike. However, there are still several things you should consider before buying one.

For example, how much does it weigh? How big is the footprint? Does it work well indoors or out?

  • Bubble show level

Bubble show level are used in kitchen cabinet installation or any types of job that need accurate readings. These units consist of two parts: bubble tube and an electronic unit.

When you place your hand inside the bubble tube, the device emits bubbles as far away as 10 meters. When you remove your hands, the bubbles stop flowing.

As soon as you see no more bubbles coming out, you know exactly what’s going on under the table.

  • Construction laser levels

LS-100D laser detector and CR3 laser detector are both popular models among contractors. Both products offer excellent accuracy and durability.

They are designed to withstand extreme conditions such as dust, moisture, heat and cold. This means you don't have to worry about damaging your equipment while doing home improvement tasks.

The LS-100D has a maximum range of 100 ft while the CR3 offers a reading range of 300ft. Both detectors are easy to operate and set up.

  • Laser beam type level

Laser beam level has incredible degree reading and accuracy It's suitable for all kinds of carpentry works including window frames, door frame, decking, etc.

It features a large LCD panel which displays the exact height of the object measured. The user just needs to point the laser pointer towards the desired spot and hit the start button.

You'll receive instant feedback once the measurement is complete. In addition, this model comes equipped with a built-in battery pack.

  • Laser level floor survey

For floor survey purposes, we recommend using a portable laser level. They're compact enough to carry around easily and convenient to use.

You can choose between handheld and tripod versions depending on your preference. Most come with a carrying case and some even include a clamp attachment.

  • Laser level for drainage

When your drainage need repair and you want to check whether the pipes are straight, then you must get yourself a laser level.

These tools will help you determine whether the pipe is perfectly vertical or tilted at different angles.

You may find it useful when installing new plumbing fixtures like faucets, toilets, sinks, bathtubs, shower stalls, etc.

  • Laser level for drop ceiling

For indoor applications laser level for drop ceiling is ideal because they provide quick measurements without having to move heavy objects.

In fact, these devices are so light weight that you won't feel anything during operation. You simply hold the tool against the surface and press the trigger button.

Once done, you'll be able to view the results instantly through its LED display.

  • Laser level for floor

For tile layout and floor leveling purpose, you should consider getting one of these handy gadgets.

This product provides fast and precise measurements. All you need to do is align the laser pointer along the edge of the tiles and press the trigger button to begin measuring.

Afterward, you'll be able to see how much space there is between each tile by looking at the distance displayed on the screen.

  • Laser level for framing

For framing and horizontal line reference, you should opt for a laser level. These tools allow you to quickly make accurate measurements in order to ensure proper alignment of walls, doors, windows, ceilings, floors, etc.

Most units feature an adjustable head allowing users to position them accurately over any given area. Some also come with a clamp attachment making installation easier than ever before.

  • Laser level for grading

Using laser for grade measurement is very easy. Just place the device onto the ground and aim the laser pointer toward the top of the slope.

Once done, you'll have access to the exact elevation of the surface.

The unit measures up to 10 feet long and weighs only 2 pounds. This makes it perfect for outdoor projects as well.

  • Laser level for slop

To have accurate grade slope, you must invest in a laser level. It's important to note that most models available today offer both manual and automatic modes.

With the former, you'll be required to manually adjust the angle while pressing the trigger button.

With the latter, however, all you need to do is set the starting point and let the machine work automatically.

If you prefer to go hands free, then you might want to look into a cordless version.

  • Manual rotary laser level

Manual laser are great if you're working alone but not recommended if you plan on using this tool frequently.

They require constant attention which means you'll end up spending more time adjusting the instrument rather than focusing on other tasks.

On the contrary, corded ones are convenient since you don't have to worry about batteries running out. However, their range is limited compared to battery-operated counterparts.

  • Point-type laser level

The point type laser are very popular in construction sites due to their compact size and ease of use. The best part? Most of them can operate wirelessly via Bluetooth technology.

You just pair your smartphone or tablet with the gadget and start taking readings from anywhere within its range.

  • Cordless handheld laser level

These types of lasers are designed specifically for home improvement purposes. Their small size allows you to carry them around easily even when doing DIY jobs.

They usually weigh less than 5 ounces and include rechargeable lithium ion batteries.

Other pages if you're reading up on laser levels..


I'm Elliot Higgins the Founder of multiple hardware stores around the UK. I love wood and wood working. Watching a fine piece of pine or cedar turn into a work of art is extremely satisfying. The one thing I love more than woodworking is the toys that we use! On; we bring you information and reviews on all kinds of tools.

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