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Joining Plywood side and bottom of a cabinet

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Forum topic by damnHippie posted 2170 days ago 5023 views 0 times favorited 11 replies Add to Favorites Watch
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damnHippie

35 posts in 2409 days


2170 days ago

Topic tags/keywords: question joining

I’m in the process of designing/building a sideboard cabinet. A bit in the craftsman style, and has legs and rails. I’ve run into a design issue: how do I join the side plywood sheet and the bottom plywood sheet where they meet the rail? What do you think?

Classic butt joint with biscuits?
Butt joints, with biscuits

Rabbeted rail with both ply sheets mitered?
Rabbeted rail, mitered ply

Rabbeted rail, with the side ply sheet rabbeted?
Rabbeted rail, rabbeted side ply

Rabbeted rail, with the bottom ply sheet rabbeted?
Rabbeted rail, rabbeted bottom ply

-- 10 fingers, 2 eyes, and healthy lungs. for now. :P


11 replies so far

View ajosephg's profile

ajosephg

1850 posts in 2195 days


#1 posted 2170 days ago

I like option 3 or 4. Six of one or a half dozen of the other. They both hide the cut end of the stock, probably stronger and easier to make than 2.

-- Joe

View sIKE's profile

sIKE

1271 posts in 2388 days


#2 posted 2170 days ago

Sliding Dovetail?

-- //FC - Round Rock, TX - "Experience is what you get just after you need it"

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lew

10005 posts in 2390 days


#3 posted 2170 days ago

I would go with the last option simply because both side and bottom have the full width of the rail rabbet for support

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View cmaeda's profile

cmaeda

205 posts in 2188 days


#4 posted 2170 days ago

The last option looks to be the strongest.

View gusthehonky's profile

gusthehonky

130 posts in 2376 days


#5 posted 2170 days ago

4 looks good for bottom, but side also must be taken into account also. What size ply, is there a face frame, fixed shelfs, or other material, aside from top and back to for support and strength?

-- Ciao, gth.

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Moron

4666 posts in 2528 days


#6 posted 2170 days ago

Option 3…............only I wouldnt rabbet the base to the cabinet, rather let the cabinet sit on top. This way transportation and installation is faster, easier and it does not deter the structural integrity of the piece.

2 cents

-- "Good artists borrow, great artists steal”…..Picasso

View Joe Lyddon's profile

Joe Lyddon

7686 posts in 2687 days


#7 posted 2156 days ago

With plywwod having grain(s) that go in both directions, alternating sheets, why not the good ole Butt Joint?

I have found it to be very strong and good when gluing pieces of ply together.

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

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brianinpa

1809 posts in 2357 days


#8 posted 2155 days ago

#4 will be the strongest joint out of all your designs, but I have to agree with Joe’s comment about a simple butt joint.

-- Brian, Lebanon PA, If you aren’t having fun doing it, find something else to do.

View tooldad's profile

tooldad

657 posts in 2349 days


#9 posted 2155 days ago

My method is to run the plywood all the way to the floor and use the plywood as part of the leg or side. Then add the solid material as a base trim. I think it would give you the same effect visually, then it is just a simple dado. I will draw it up in sketchup and post again.

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tooldad

657 posts in 2349 days


#10 posted 2155 days ago

here you go:
dado with trim example

View Bob #2's profile

Bob #2

3808 posts in 2656 days


#11 posted 2155 days ago

Tooldad:

Your last design depends on a level floor.
Good luck finding one.
Go back and read what Roman tomentioned above.
It’s a shame to have to flip the cabinets over on the jobsite and start trimming plywood to level the boxes.
Cheers

Bob

-- A mind, like a home, is furnished by its owner

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