Please see this example of a framed woodcut ketubah:
The wood is always poplar or mahogany, but it has also slight variations in color and texture being a natural material.
Since the woodcut layer is 3-4mm thick, your local framing shop will have to allow for it, but in most cases it is still easy to have a glazing layer (optional), then a window mat (also optional), the ketubah layers, and lastly a backboard to hold tight all layers.
A papercut ketubah framing example:
Also, please see the attached pictures for more unframed examples: