Domino size

[Telescopist]

I'm building some stand alone book shelves out of oak. I need another 70 board feet give or take for shelves. The shelves will be @ 10" wide. At $3.50 per board foot for the oak, I  have been thinking about purchasing a sheet of 3/4" birch plywood and gluing 3" strips of oak to the front of the shelves. After all the shelves themselves will be full of books. Do I need to order 4mm dominos or will the 5mm work for this part of the project? TIA

 

[semenza]

I'm building some stand alone book shelves out of oak. I need another 70 board feet give or take for shelves. The shelves will be @ 10" wide. At $3.50 per board foot for the oak, I  have been thinking about purchasing a sheet of 3/4" birch plywood and gluing 3" strips of oak to the front of the shelves. After all the shelves themselves will be full of books. Do I need to order 4mm dominos or will the 5mm work for this part of the project? TIA

Are you thinking 3" in the vertical plane or horizontal plane?  Either way the 5mm will be the way to go for this.

Also , why not a sheet of oak plywood?

Seth

 

[Telescopist]

The cases are already built - out of oak. The backs are out of 1/4 maple ply. I'm painting them a burgundy color. So were talking horizontal. Oak ply wood would be more expensive? And besides, I'd still have to glue an oak strip to the edge of the ply or am I missing something here. Thanks.

 

[Crazyraceguy]

Actually, I would use 6mm Dominos. If you are putting the edge horizontally, I would use 50s and put them in 25mm each way. If you put the edge vertically, use 40s and only go 15mm into the edge and 25mm into the ply.

 

[sancho57]

since you didn't say how long the shelves would be this may come in handy

http://www.woodbin.com/calcs/sagulator/

 

[Telescopist]

Actually, I would use 6mm Dominos. If you are putting the edge horizontally, I would use 50s and put them in 25mm each way. If you put the edge vertically, use 40s and only go 15mm into the edge and 25mm into the ply.

1. I used 8mm x 40mm to build the case (all solid oak). And just like you wrote, 15mm went into the edge and 25mm into the tops and bottoms.
2. I'm going to use 5mm to glue the oak fronts to the ply shelves. Only because I don't have 6mm handy. I'm thinking that the combination of 'long grain' gluing plus the fact that the books will be distributed over 60% of the ply and the balance over the over there won't be any catastrophic failure.

 

[Telescopist]

since you didn't say how long the shelves would be this may come in handy

http://www.woodbin.com/calcs/sagulator/

Thanks for the link. I'll post some images of the work in progress and finished product in about 2 weeks or so.
I believe I okay. 3/4" material. Longest length: 34.5".

 

[#Tee]

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