@orionpcgames Oak is loaded with tannic acid. It will turn any steel it comes in contact with black. You can use it but you want to make sure you put a protective layer of felt between the wood and the turntable. You would want to use quarter sawn oak if you can as it will not warp with changes in humidity. In this regard South American Mahogany is the best. It is pretty wood that is very stable. It is also available in 12/4 and widths up to 20 inches.