Laser measuring tools for installing island range hood

[Keith5523]

I'm installing an island range hood over a cooktop. The ceiling above the cooktop goes directly into the attic, and if my guesstimate is correct I'll be between 2 rafters. That will make it a straight shot to vent to the outside with no elbows...I'm hoping.

I have found the center point of the cooktop using basic math, but know need to make accurate mark on the ceiling to be able to make sure the unit is centered when it's hanging from the rafters.

It is a vented model and I'm going to use stove pipe to vent it directly to the roof so it will be a straight line to the rooftop.

Is there a laser tool to help me get the "X marks the spot" so I can make the cut in the sheetrock above the cooktop?

Thanks for your help. Any other thoughts are appreciated.

Keith

 

[Reach4]

https://www.boschtools.com/us/en/boschtools-ocs/line-lasers-gcl-2-160-143599-p/ is one that includes a plumb bob mode.
https://www.johnsonlevel.com/P/1747/Self-Leveling3DotLaser https://www.homedepot.com/p/Johnson-Self-Leveling-3-Dot-Laser-Level-40-6646/303535382 Johnson 40-6646 just makes dots including one straight up. Bosch GPL3 does similar.

A regular plumb bob would be fairly easy.

 

[Sponsor]

 

[hj]

A piece of string with a small nut tied to one end would do it a lot cheaper.

 

[Jadnashua]

While most of the laser tools are pretty accurate, it might take some calibration. FWIW, gravity always works...for a single use, you can't beat a plumb bob. I prefer that versus a plain weight since it has a point on it versus having to guess.

 

[hj]

For his purose a "point" is not necessary.