Pros and Cons of Building a Railroad Tie Retaining Wall in Portland

If you’re looking for a rustic, cost-effective solution for your landscaping needs, a railroad tie retaining wall might seem like a great idea. These walls have been used for decades to hold back soil, shape outdoor spaces, and add a rugged, natural feel to yards. But before you commit, it’s important to weigh the benefits and drawbacks—especially here in Portland’s unique climate.

✅ Pros of Railroad Tie Retaining Walls

1. Budget-Friendly Material

Reclaimed railroad ties are relatively inexpensive compared to stone or concrete blocks. For homeowners looking to save on materials, they offer a lower upfront cost.

2. Rustic Aesthetic Appeal

Railroad ties offer a rugged, vintage look that pairs well with Portland’s forested backyards and older home styles. They blend in nicely with natural landscapes and cabin-style properties.

3. Easy to Find and Work With

Railroad ties are widely available at home improvement stores and salvage yards. They’re easy to cut and stack, making them a practical choice for DIY projects or quick installations.

⚠️ Cons of Railroad Tie Retaining Walls

1. Environmental Concerns

Many old railroad ties are treated with creosote, a chemical preservative that can leach into soil and water—posing health risks for pets, children, and nearby plants. Modern codes may restrict their use in some areas of Portland.

2. Shorter Lifespan in Portland’s Climate

With Portland’s heavy rainfall and moisture-rich soil, untreated wood can rot quickly. Even treated ties eventually degrade faster here than in drier climates, which means more frequent repairs or replacements.

3. Structural Limitations

Railroad tie walls aren’t ideal for supporting large slopes or heavy loads. They may begin to bow or shift over time without proper drainage or anchoring—especially on sloped properties common in parts of Portland.

Is a Railroad Tie Retaining Wall Right for You?

If you’re going for a short wall with a rustic appearance on level ground, railroad ties may be a suitable option. But for long-term durability and safety—especially on hillsides—alternatives like concrete or stone are often more reliable.

At Boss PDX, we specialize in retaining wall construction using a range of materials suited to Portland’s unique terrain and weather. Whether you’re exploring railroad ties or looking for a more modern solution, we’re here to help you make the right choice for your home.

Request a free estimate today to talk with our team about your retaining wall project.