Which hole saw to use for 5" recessed light can

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Old 02-02-16, 01:44 PM
K
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Which hole saw to use for 5" recessed light can

I am planning "Juno Remodel Airtight IC Recessed Light Housing (Common: 5-in; Actual: 5.87-in)" and Nicor 5" Gimbal trim.

1) What does this Common and Actual mean ?

2) What size hole saw should I use ? The options I am thinking are --"Milwaukee 5-3/8 in. Recessed Light Hole Saw " OR " LENOX 5-in Bi-Metal Non-Arbored Hole Saw" . I am OK if the hole is a little small but it will be a problem if it is too big.

The ceiling is plaster with plywood under and I have attic access if required (though want to avoid working in attic )

Thanks much
 
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Old 02-02-16, 01:49 PM
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The 5 3/8" saw is the one you want. The actual measurement includes the flange.
 
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Old 02-02-16, 02:33 PM
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For a plaster ceiling you need a carbide grit holesaw. The plaster will wear down the teeth on a regular holesaw very quickly.
 
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Old 02-02-16, 05:20 PM
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That fixture will work in a mounting substrate of one inch or less. Your plaster and plywood may be over an inch thick.
 
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Old 02-02-16, 05:30 PM
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PJmax, can you suggest which fixture will work. It is probably a little over 1" thick. Will a new construction housing be better (I can go to attic and install)
 
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