Premium 4.125" x 4.125" x 9' Fence Posts
Seattle's best value posts — superior strength and longevity vs. box-store 3.5" posts.
Superior to Box Store Posts
Big-box "4x4" posts are actually 3.5" x 3.5". Our 4.125" posts add substantial cross-sectional area for stability.
Less Warping & Twisting
Optimized size with excellent stability over decades in Seattle's climate.
MyFence.com's Professional Installation Process
Our expert team follows proven techniques to ensure your fence posts last for decades in Seattle's unique climate.
Precise Post Placement
We use our Fence Genius technology to ensure exact spacing and alignment for structural integrity.
Surface-Level Concrete
Concrete poured at or near surface level prevents soil contact, dramatically reducing rot risk.
Quality Cedar Posts
Premium 4.125" x 4.125" x 9' cedar posts selected for strength and natural rot resistance.
Installed Results
Ready to Build with Better Posts?
Get a free quote from MyFence.com for your project using premium 4.125" posts.
Expert Fence Insights & Advice
Get professional advice on fence installation, maintenance, and costs from Seattle's trusted fencing experts
Steel vs Wood Fence Posts: Which Is the Better Long-Term Investment?
Compare 4x4 black steel fence posts with traditional wood posts. 40-year warranty vs 10-15 year lifespan. Learn why steel posts are ideal for wet Seattle soil.
Cedar/Steel Hybrid Fence: The Ultimate Guide to Modern Privacy Fencing
Discover the cedar/steel hybrid fence system - 26 gauge corrugated steel panels with HDP NoFade™ paint and cedar framing. Learn about pricing ($80/LF), 30-year warranty options, and why this is the ultimate privacy fence investment.
Choosing Cedar Fence Board Grade: A Complete Guide
Learn about the different cedar fence board grades MyFence.com offers, from #1-2 Face to Clear Cedar, and how to choose the right grade for your fence project.
Get Your Instant Fence Quote with Our Advanced Virtual Tool
Discover how our revolutionary virtual quote tool lets you choose fence styles, customize posts, add upgrades, and draw your property for accurate instant pricing.
Our Service Area
Proudly serving the greater Seattle area within a 28-mile radius
Service Areas
Professional fence installation across King County, Pierce County, and East King County