butcher block table with hinged drop sides

[lelandschultz]

I have a metal small roll around cart that we are putting a butcher block top on.  We want both sides to be hinged for either fold on to the top or fold to the sides.

We have the pull out metal slides for supporting the sided when in use.

What is the best hinge to use for this?  I was thinking of a piano hinge but the hinge part looks like it will stick up some when folded flat if I use this to fold over on the top.

Does anyone have any suggestions?

thanks, Leland

[curlyoak]

If it swings down, the barrel of the piano hinge will be underneath. The same would work with a butt hinge. A big strong one. Either should be morticed into the wood. Folding down will also be more convenient.

[Don Z.]

I would consider a Butler Tray Hinge:

 

https://www.hardwaresource.com/specialty/butler-tray-table-hinges

 

 

[RichardA]

How thick is the butcher block?