| A cross-grained strip of mahogany is traditionally glued on the underside of the back to reinforce the joint. | |
| The reinforcing strip is then notched to make room for the back braces. | |
| The back braces are shaped so that the back will be arched when completed. Back braces are typically mahogany when rosewood is used for the back. | |
| Again, note how the back is arched and doesn't lie flat on the support board. Typically, the back has a more pronounced arch than the top. | |