The bottom width is about 55.5-56.5mm. The nut width is about 42mm. The truss rods are working fine, and the neck is beautiful. I'm sure you'll like it. It's on sale now, thank you! The neck on this batch of guitars is gorgeous. Sell at wholesale prices. Many suppliers get their products from my factory, so my prices are cheaper. Thank you. If you believe me, just buy once. I'm sure you'll like it, and I'm sure you'll be a repeat buyer. Because my guitar neck is a tough quality product. I hope we can cooperate with each other. thank you