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Supporting corner shelves

JMadson's picture

Looking for design help.


Check out the attached Sketchup shot of a preliminary design. The bookcase will cover the two walls, meeting in the corner.


How do I support the shelves in the corner?


(Major changes can still be made if needed)


Joe


“The richest genius, like the most fertile soil, when uncultivated, shoots up into the rankest weeds..” – Hume
 
 

(post #77684, reply #1 of 4)

I did a stack of corner shelf arrangements like that in a closet.


Each leg about 40". Ends and backs supported by full length cleats and the two shelves square cut and joined with biscuits and glue. 3/4" plywood, edge banded and painted.  Loaded and no sag.


With the bookcase I would dado the ends, pin, cleat or staple the backs and join the corner with biscuits and glue. Also, if the design permits, I would add a stiffener to the front of all shelves. You can rout a nice profile to set them off. I would resist making the corner shelves adjustable.


 

(post #77684, reply #2 of 4)

dado all shelves into the back panel and they will support themselves

 

 


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(post #77684, reply #3 of 4)

Thanks for the drawing.  I'd be inclined to dado for the shelves, then use biscuits and glue to join the intersecting shelves.  It's going to be a little tricky because you have to join the two units up, shelves in place, prior to pushing them into the corner.  A rubber mallet might come in handy.

(post #77684, reply #4 of 4)

I did something very similar for a pantry.  I used 2 layers of 3/8" plywood and "half-lapped" the corners.  The overlap is the full depth of the adjoining shelf.  It's glued and screwed, so it's quite strong, but I'm sure it would deflect under the weight of a full shelf of books.


The edges were edge-banded and everything was painted.  It would be much more challenging to use this technique if the shelves need to be stained.