Since this is your own take on an LP, and Gibson LP's dont have sound holes OR belly carves, I'd say make them however you like them. There's no "right" number.Thanks but I need a more exact figure... half an inch?
And to make mathers worse I'm doing it on a piece of 1 1/2 mahogany body which is going to have a 1/4 " flat sycamore top on top of it.. and it's going to be weight relieved... It's going to be tricky, maybe 1/2" is more than enough. I was planning to leave 1/2" on the hollowed parts after all..Since this is your own take on an LP, and Gibson LP's dont have sound holes OR belly carves, I'd say make them however you like them. There's no "right" number.
I'm assuming that by sound-hole you mean like a semi-hollow with an F hole?
If it was my build I'd keep the belly carve fairly shallow. The edge thickness would normally be 1.75" of mahogany plus whatever the binding height, maybe 1/4" so a total thickness of 2" on the edge.
I'd probably make it 1/2" - 3/4" deep at the most, but again, there is no right answer here.
You said this is "your take" on an LP, so make it whatever you like
Of course if you are doing semi-hollow, you dont want to go so deep that you are too thin on the back
He's talking about the belly carve, like a Strat, on the back face of the guitar, not the top carve. He has a 1/4" top. Not much to carve there! ;-)A "typical" LP's maple cap is just about 5/8" thick when carving is started. It ends up being just about 1/4" thick at the rim and in the recurve, maybe 1/16" less.
I've done shallow carves on tops as thin as 3/8" and more dramatic carves on tops as thick as a generous 3/4". They all look good. It's the carve profile and consistency that matters rather than the depth of it.