How to build a fireplace mantel shelf. Level the shelf and draw a line on the wall at the top of the shelf. In our old home we had an extremely dated mantel above our fireplace that i would have loved to have replaced. A custom made shelf mantle will adorn your fireplace and help achieve that special focal point of interest in your home.
Stand the mantel against the fireplace wall and secure it to the wall studs with 3 inch screws. Cut a poplar shelf to fit across the top of the mantel then nail the shelf to the nailer strip. To attach to the wall we used masonry screws to secure 2x6s to the existing brick fireplace.
Made of inch veneer plywood our mantel is layered with elegant pilasters that are wrapped with stock moldings and baseboard and topped with a trimmed out shelf. As with any fireplace project safety is paramount. How to build a mantel shelf.
Place the shelf on the wall above your fireplace or on the wall at the desired height. Remove the shelf and measure down 2 34 from the line and draw a second line on the wall parallel to the first line.