Laser Level DIY Guide: Choosing and Using
A laser level DIY guide to choosing and using a cross-line level for hanging, tiling and ceiling work.
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A shelf goes up straight, a picture hangs level, and a tile line runs true across the wall. That is the work a laser level diy setup is built around: a bright line cast across the room to mark where things go, in place of a pencil mark checked again and again with a bubble vial. A laser level projects a straight line, and the DIY job is to set that line where the work goes, then hang, tile or fix to it.
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Below: how the line works for DIY jobs, how to use a laser level step by step, and the gear that covers the measuring and marking.
| # | Product | Shop Score | Buy |
|---|---|---|---|
| 1 |  Laser Level, RockSeed Cross Line Laser | 9.6/10 | Buy on Amazon |
| 2 |  WEIDDW Laser Level 360° Green Cross Line Self | 9.5/10 | Buy on Amazon |
| 3 |  DEWALT 20V/12V MAX Laser Level Kit, 3 x 360 | 9.5/10 | Buy on Amazon |
Laser Level, RockSeed Cross Line Laser
A red cross-line level with self-leveling and manual modes, a 110 degree line angle, IP54 protection, and a compact body with a carrying pouch.
Pros
- Self-leveling mode and manual mode from a slide switch
- Accuracy of plus or minus 1/8 in at 30 ft
- IP54 protection grade with 4 ft collision protection
- Carrying pouch and batteries included in the package
Cons
- Magnetic bracket is sold separately, the listing states
- No working range stated, only accuracy at 30 ft
- No tripod included in the package
- No pulse mode stated for bright conditions
WEIDDW Laser Level 360° Green Cross Line Self
A 360 degree green cross-line laser, self-leveling under 4 degrees of tilt, with manual mode, 2 x 2400mAh batteries, a tripod and remote control, and a 12-month free warranty.
Pros
- 360 degree green cross line with self-leveling under 4 degrees of tilt
- 2 x 2400mAh batteries, 3 to 4 hours each, 6 to 8 hours in total
- Tripod and remote control included
- 12-month free warranty and 12-month free replacement stated
Cons
- Title says green but the spec table says red
- No leveling accuracy figure stated
- No carrying case stated
- No mount thread or clamp size stated
DEWALT 20V/12V MAX Laser Level Kit, 3 x 360
A 20V/12V MAX green laser level kit with 3 x 360 degree planes, a 2.0Ah battery, charger and case.
Pros
- 3 x 360 degree green planes
- Runs on 20V or 12V MAX batteries
- 2.0Ah battery, charger and case included
- 6 piece set for storage and transport
Cons
- No warranty term stated on the listing
- No runtime figure stated
- No auto-leveling range stated
- No tripod or mount stated in the kit
Laser level DIY: how the line helps around the garage
A cross-line laser puts a level line and a plumb line on the wall at the same time, so the same setup marks the height of a shelf and the vertical edge of a tile run. The WEIDDW pick below is a 360 degree green cross-line unit, self-leveling under 4 degrees of tilt, with a manual mode for lines meant to run off level. The DEWALT pick is a 3 x 360 green unit, so its planes wrap the room, and the RockSeed pick is a red cross-line unit with vertical and horizontal lines and a rotatable 360 degree line.
How to use a laser level for DIY jobs
- Set it on steady ground. Place the unit on a flat, steady surface or on a tripod, where it will not be knocked while the work goes on.
- Switch it on and let it level. In auto-leveling mode the WEIDDW unit levels itself when the tilt stays under 4 degrees. Wait until the line stops moving before marking.
- Mark the line. Put pencil marks along the projected line where the work will sit, then check the marks against the line again before drilling or fixing.
- Use manual mode for a line off level. When the job calls for a line that runs off level, switch the WEIDDW unit to manual mode and set the line by hand.
- Move it with care. When the work moves to the next wall, carry the unit to the new spot and let it level again before marking.
- Pack it away. Turn the unit off at the end of the job and put it in its case or pouch: the DEWALT kit comes with a case and the RockSeed unit comes with a carrying pouch.
Use rated jack stands on solid ground, wear eye protection with power and air tools, keep fuel-burning equipment out of a closed garage, and follow the manual for every tool. Read our Safety Disclaimer.
Laser levels for DIY jobs
That work needs a level that holds a straight line while it moves around the room, so the picks below cover hanging, tiling and ceiling work with the batteries, tripod, remote and case each listing states.
Choosing a laser level for DIY work
Start with the planes: a 360 degree cross line covers a wall, while the DEWALT 3 x 360 layout wraps the room. The WEIDDW unit ships with 2 x 2400mAh batteries, each lasting 3 to 4 hours, for 6 to 8 hours of use in total, while the DEWALT kit runs on 20V or 12V MAX batteries with a 2.0Ah battery in the box.
Look at what comes in the box as well: the WEIDDW unit includes a tripod and a remote control, the DEWALT kit includes a charger and a case, and the RockSeed unit includes a carrying pouch and a battery. A 12-month free warranty is stated for the WEIDDW unit, while no warranty term is stated for the DEWALT or RockSeed listings.
FAQ: garage tools
Can a laser level hang pictures?
Yes. Picture hanging is listed among the uses for the WEIDDW unit, along with interior decoration, tiling, ceiling installation and engineering measurement. Set the line at the height the pictures will hang, mark it, and hang each frame to the mark.
How long does a laser level battery last?
For the WEIDDW unit, each battery lasts 3 to 4 hours of continuous use, and the 2 batteries together give 6 to 8 hours of use. The DEWALT kit includes a 2.0Ah battery with no runtime stated, and the RockSeed listing states no battery size or runtime.
What does self-leveling mean on a laser level?
Self-leveling means the unit finds level itself after it is switched on, as long as it sits within its auto-leveling range. For the WEIDDW unit that range is under 4 degrees of tilt. Outside that range, manual mode lets the line be set by hand instead.
Is a tripod needed for a laser level?
A tripod is not required, but it holds the line steady at the height the work needs. The WEIDDW unit comes with a tripod, the DEWALT kit comes with a case, and the RockSeed unit comes with a carrying pouch, so check what is in the box before the job starts.
Can a laser level help with tiling?
Yes. Tiling is listed among the uses for the WEIDDW unit. The cross line gives a horizontal line for the tile course and a vertical line for the edge, so the tiles can be set to the lines instead of to a pencil mark alone.
Green or red: which laser level color for DIY?
The picks in this guide come in green and in red, and the trade-offs between the colors are covered in the green vs red laser level guide. Either color marks the same lines; the linked guide lays out the differences so the choice fits the room and the job.
Related: best green laser level for garage, laser level vs spirit level, chalk line vs laser level and cross line vs 360 laser level.
