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Best tool for cutting a long channel through drywall?

Best tool for cutting a long channel through drywall?

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  #1  
Old 03-16-16, 10:35 AM
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Best tool for cutting a long channel through drywall?

I'm replacing a garage door opener in a garage with very low clearance. I need a channel cut in the ceiling drywall to give it enough clearance. The existing channel from the old opener isn't wide enough, so I need to cut it wider and a little longer to accommodate.

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The picture above shows part the existing channel. A section nearest the door is cut all the way through but the rest is cut only through the first layer of drywall. I'm looking for a tool that can help me cut a relatively straight (following a snap line or something) cut only through the first layer of drywall.

This is what I've found so far in my limited research: http://www.amazon.com/RotoZip-SS560V...ywords=rotozip

Any help appreciated.
 
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  #2  
Old 03-16-16, 12:45 PM
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A sharp knife and a metal straightedge should be a simple solution.

- Peter
 
  #3  
Old 03-16-16, 12:59 PM
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Keep in mind that two layers of drywall is possibly a fire code and you would then be violating it.
 
  #4  
Old 03-16-16, 01:14 PM
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Have you looked into using a Quick-turn kit, which allows you to install an opener with less than normal clearance? Or for really small clearance, they make dual track systems.
 
  #5  
Old 03-16-16, 03:09 PM
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Even what's been done so far is against code.
Something was done wrong if that's the way it needs to be done.
 
  #6  
Old 03-16-16, 03:28 PM
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Question regarded proper tool. Use a multimaster following a straight line.
 
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Old 03-16-16, 06:03 PM
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A "multi master" is an ossilating tool.
It will do the job but what your trying to do is just wrong.
 
  #8  
Old 03-16-16, 06:47 PM
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You might want to consider something like this instead.

8500 LiftMaster Elite Series® Wall Mount Garage Door Opener
 
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