Building a horizontal cedar fence offers a timeless aesthetic that blends seamlessly with natural landscapes. This guide provides a structured approach to constructing a durable and visually appealing barrier, focusing on precise methods and material selection. The inherent resistance of cedar to rot and insects makes it an ideal choice for outdoor structures, ensuring longevity with minimal maintenance.
Planning and Material Preparation
Effective planning is the cornerstone of a successful fence project. Begin by checking local building codes and Homeowners Association rules regarding height and placement. Accurate measurement of the area defines the quantity of lumber required, preventing costly delays. Selecting quality horizontal cedar fencing boards with minimal knots ensures structural integrity and a refined finish from the outset.
Gathering Essential Tools and Supplies
Assembling the right tools is critical for efficiency and precision. The project requires specific equipment to ensure the framework is level and the boards are securely fastened. Investing in quality tools not only simplifies the process but also contributes to the overall durability of the installation.

- Tape measure and pencil
- Post-hole digger or auger
- Level (string level and torpedo level)
- Power drill and driver bits
- Rubber mallet
- Circular saw or miter saw
- Staple gun or corrosion-resistant screws
Establishing the Foundation
Setting a solid foundation involves placing posts that provide unwavering support. Dig holes at designated post locations to a depth that exceeds the frost line, preventing ground movement from shifting the structure. Setting posts slightly proud of the final grade allows for precise height adjustment using gravel and dirt.
Ensuring Post-Level Stability
Plumb posts are essential for a fence that stands straight. Use a level to check alignment on both sides and front-to-back planes. Temporarily bracing the posts with scrap wood maintains the correct position until concrete sets. This step is non-negotiable, as uneven posts create a cascading alignment issue for every board above.
Framing the Horizontal Runners
Once the posts are set and cured, attach horizontal runners that serve as the anchor for the fencing boards. These runners are typically fixed at the top and bottom of the post exterior, though a third mid-runner provides extra rigidity for taller installations. The runners must be perfectly horizontal to ensure the visual appeal and prevent board warping over time.

Spacing and Board Layout
Consistent spacing between fence boards is vital for both aesthetics and drainage. Using a scrap board as a spacer ensures uniform gaps that prevent visual clutter and allow rainwater to pass through, reducing the risk of mold accumulation. Begin installation from one corner, working horizontally across the line to maintain a clean, symmetrical appearance.
| Component | Specification |
|---|---|
| Post Spacing | 6 to 8 feet on center |
| Runner Placement | Top, Bottom, and Mid (if needed) |
| Board Gap | 1/8" to 1/4" for drainage |
| Fastener Type | Stainless steel or coated screws |
Finishing and Long-Term Care
Installation is complete once all boards are secured and trimmed ends are smooth. Unlike pressure-treated wood, cedar does not require immediate staining, though applying a clear sealant can enhance the grain and prolong its natural color. Regular cleaning with a mild soap solution removes dirt and preserves the wood's integrity against weathering.
Enhancing Curb Appeal
A horizontal cedar fence delivers a clean, modern look that complements contemporary and rustic homes alike. The natural texture of the wood adds warmth without overwhelming the landscape. By following these steps, the fence becomes a long-lasting feature that increases property value and provides reliable privacy.