looking for advice on rounding mitered corners

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Forum topic by mnorusis posted 11-02-2009 07:20 PM 3162 views 0 times favorited 3 replies Add to Favorites Watch
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153 posts in 3142 days

11-02-2009 07:20 PM

Not sure if I’m over thinking this or not…

I’m building a box, the corner joints are mitered corners. What router bit should I use to round the side edges (ie. where the front and side of the box meet)? Obviously a roundover bit but what size do you use to get it perfectly rounded? Or do you just pick a size and use it from both sides? Anything else to watch out for when doing this?

The wood I’m using is planed down to 3/4” thickness.


3 replies so far

View SnowyRiver's profile


51457 posts in 3479 days

#1 posted 11-02-2009 07:31 PM

It just depends on how much of a round over you want. If you want it rounded over the entire edge of the board, I usually use a 3/8 round over bit on 3/4 stock and round it from both sides adjusting it until the round over meets in the middle of the edge of the board. I always test it on a piece of scrap to be sure I have it adjusted correctly. You might even make several passes so it doesnt chip out.

-- Wayne - Plymouth MN

View Thuan's profile


203 posts in 3817 days

#2 posted 11-02-2009 08:57 PM

Because of the relative abundance of 3/4” materials and the ease of making a mitered corner, make a mock up of the the corners and test your different bits. It’s the fastest way to get the answer.

-- Thuan

View mnorusis's profile


153 posts in 3142 days

#3 posted 11-02-2009 09:01 PM

yeah, that’s great advice, I’ll definitely be doing that.

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