Wood movement, threaded inserts, and leg assemblies

[4nthony]

I'm working on a small coffee table made from quartersawn white oak, and I'm wondering how to size the attachment holes through the leg assembly.

Assuming this is how the legs will be mounted to the table, I'm thinking the holes at 3 & 4 (or even 2 & 5) will be fixed points, as they are inline and on the same grain, and would experience little to no movement. The others would be looser to accommodate movement. The leg assembly will be attached with threaded inserts.

How would you do it?

 

[smorgasbord]

In the current orientation, only point #6 is likely to see any significant relative movement compared to the other points. Since this is indoors in a probably temperature/humidity controlled environment (not a bathroom table, for instance), I wouldn't worry about Point #1.

Points 2, 3, & 5 are all close to each other.
Point 4 is inline with 3.
Points 2 & 5 are inline with each other.
Point 1 isn't far away from 3 & 4, which are inline with each other.

And the top is quartersaw, so may not see as much movement as flatsawn (unless I have that backwards).

 

[ChuckM]

Quartersawn wood is already good insurance. I'd drill the three elongated holes as shown in blue:

[attachimg=1]

 

[Crazyraceguy]

I'm mostly with Chuck, there won't be enough movement between 2-3-5 to matter at all. 4 is inline with 3, along the grain line, also non-issue. The ones I would be concerned about are 1 and 6. Slotting those, so the slot goes across the grain, would be the way I would do it.