Transforming the space around your hearth into a functional display area is a rewarding project that adds both storage and style to your home. A DIY built in shelves around fireplace design allows you to maximize often-underutilized wall space while creating a cohesive aesthetic that integrates seamlessly with your existing architecture. This guide walks you through the entire process, from initial measurements to the final coat of paint, ensuring a professional-looking result you can be proud of.
Planning Your Layout and Design
Before cutting a single board, careful planning is essential to achieve a built in that is both beautiful and practical. You must consider the dimensions of your fireplace, including the mantel’s height and the depth of the side panels, as these dictate the starting point for your shelf depths. The goal is to create a symmetrical arrangement that feels balanced, whether you opt for a uniform grid of identical boxes or a more eclectic mix of sizes and shapes.
Material Selection and Tools
The choice of materials significantly impacts the final look and durability of your project. For a classic finish, select kiln-dried pine or poplar for the frame and shelves, while plywood backs provide stability and prevent dust from settling behind the unit. To execute the build, you will need a miter saw for precise angle cuts, a cordless drill for driver bits, a level for alignment, wood glue for strong joints, and screws or nails for secure fastening.

Constructing the Framework
The framework acts as the skeleton of your built in shelves, providing the necessary support for the shelves themselves. Start by constructing the vertical side panels, ensuring they are the exact height of your wall minus the depth of the mantel to allow for a flush installation. Attach horizontal pieces at the top and bottom to create a sturdy rectangle, reinforcing the structure with corner blocks for added rigidity.
Integrating with the Mantel
If your fireplace has a protruding mantel, you will need to build a support ledger that sits flush with the bottom of the wood. This involves carefully measuring the depth of the mantel and cutting shims to bridge the gap between the framework and the stone or brick. Securing this ledger with robust construction adhesive and screws ensures the entire unit transfers its weight safely to the wall studs, rather than relying solely on the fireplace structure.
Installing the Shelves and Backing
With the frame secured, you can cut the shelving pieces to fit the openings precisely. It is recommended to attach the shelves to the vertical supports using pocket holes or dados rather than simple butt joints, as this creates a much stronger and more durable connection. Once the shelves are in place, a thin sheet of plywood cut to fit the back of the unit should be attached, effectively sealing the cavity and giving the shelves a clean, finished appearance from the side.

Finishing Touches for Longevity
Sanding the entire structure thoroughly is the critical final step before finishing. Grit progression from 120 to 220 ensures the surface is smooth to the touch and ready for stain or paint. Applying a sealant or primer is highly recommended, especially if the shelves will hold books or display items, as this protects the wood from potential moisture or heat fluctuations coming from the fireplace.
Maximizing Function and Aesthetic Appeal
Beyond mere storage, built in shelves around fireplace offer a unique opportunity to curate your interior design. You can stagger the depth of the shelves to create visual interest, with deeper compartments at the bottom for stacked books and shallower tops for delicate decor or photos. This versatility allows the structure to complement your existing décor while serving a distinct purpose.
Safety and Maintenance Considerations
When placing the finished unit, ensure it is anchored securely to the wall studs to prevent tipping, particularly if the installation is at a height or in a room with children. Maintaining a safe distance from the direct heat of the fireplace is crucial; while treated plywood and sealed woods are resilient, prolonged exposure to excessive temperatures can compromise the integrity of the materials over time.