How to Install Western Red Cedar Siding
Get a step-by-step installation guide tailored to your cedar siding project.
Where will the siding be installed?
Application Location
Exterior
Outdoor installation on building exterior
Interior
Indoor wall covering or accent
Complete Western Red Cedar Siding Installation Guide
Western Red Cedar is a popular choice for siding applications, valued for its natural beauty and durability. With a Janka hardness of 350 lbf and density of 23 lbs/ft³, it offers good performance for residential and commercial projects. Proper installation is essential to maximize the 20-30 years expected lifespan.
Janka Hardness
350 lbf
Density
23 lbs/ft³
Expected Lifespan
20-30 years
Origin
Pacific Northwest
Step 1: Acclimation & Storage
Stack Western Red Cedar siding boards with spacers for 3-7 days on-site. Keep covered but ventilated.
Step 2: Wall Preparation
Install weather-resistant barrier (WRB) with 6" overlaps. Flash all windows, doors, and penetrations. Install drip edges and starter strips. Consider a rainscreen air gap for premium performance.
Step 3: Board Layout & Starter Course
Establish a level baseline. Calculate course spacing and exposure. Snap chalk lines for each course. Install first course starting at bottom with minimum 6-8" clearance above grade.
Step 4: Fastening
Use stainless steel nails or screws for maximum corrosion resistance. Ring-shank nails provide excellent hold. Pre-drill near board ends to prevent splitting. Never nail through overlapping sections.
Step 5: Cutting & End-Sealing
Cut with a sharp carbide blade. Seal all cut ends and back-prime boards before installation for best results. Apply end-grain sealer to exposed end grain.
Step 6: Finishing
Western Red Cedar siding can be painted, stained, or left to weather naturally depending on the desired look. High-quality exterior coatings will last longer on properly prepared wood.
Step 7: Ongoing Maintenance
Inspect annually for damage. Clean 1-2 times per year. Maintain caulk and flashing. Refinish or repaint according to your chosen coating system's schedule.
Required Tools
- Circular or miter saw
- Nail gun or hammer
- Drill
- Level
- Caulk gun
Materials Needed
- Western Red Cedar siding boards
- Stainless steel nails/screws
- Weather-resistant barrier
- Flashing
- End grain sealer