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Forum topic by ringore posted 04-19-2011 03:14 AM 2294 views 0 times favorited 5 replies Add to Favorites Watch
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ringore

24 posts in 2063 days


04-19-2011 03:14 AM

Topic tags/keywords: design dado rabbet

How deep should dado/rabbets be in a side panel of 3/4” plywood bookshelf? I wasn’t sure if there is a rule of thumb to follow when determining the depth of the cut.

-- "I'm a classic overachieving underachiever" - Phil Newcomb


5 replies so far

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mvflaim

183 posts in 2555 days


#1 posted 04-19-2011 03:18 AM

3/8”. rule of thumb is the depth of the dado is half the thickness of the side.

-- http://mvflaim.wordpress.com/

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rance

4245 posts in 2624 days


#2 posted 04-19-2011 03:28 AM

I always teach 1/3 the thickness. I’d be interested to see what A1Jim does on his. A tie breaker? :)

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--

View JasonWagner's profile

JasonWagner

527 posts in 2644 days


#3 posted 04-19-2011 03:42 AM

Yeah, i’ve always done about half the thickness…are these dados to hold the shelves?

-- some day I hope to have enough clamps to need a clamp cart!

View bubinga's profile

bubinga

861 posts in 2131 days


#4 posted 04-19-2011 04:08 AM

I agree with ,,rance
a quarter inch deep dado (in three-quarter inch stock )will hold the shelves fine, and not weaken the sides
But once it is glued up, it probably doesn’t matter
The two bookshelves I built the dado’s were, one third the thickness of the sides

-- E J ------- Always Keep a Firm Grip on Your Tool

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devann

2201 posts in 2156 days


#5 posted 04-19-2011 04:10 AM

I’m in the 1/3 camp. I use a router with a template bit and jig. Rout back to front, turn off router at end of cut and remove. Do not back out, the joint won’t be has tight. I don’t cut all the way across the sides because I round over the front edge of the bookshelf.

-- Darrell, making more sawdust than I know what to do with

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