Answer
Jul 13, 2021 - 08:39 PM
Thank you for reaching out to us! Our mantels are installed similarly to our beams but instead of wood blocking, we recommend a solid piece of lumber for installing the mantels. I have linked the installation instructions below just in case. On average, the opening on the back is approximately 2inches less than the outer dimensions but can vary by +/- 1/4 inch. https://www.barrondesigns.com/project...
