Nestled along the shores of Lake Pend Oreille in northern Idaho, a remarkable home proves that the most striking architecture comes from working with nature rather than against it. Built by Terry Anderson, this house uses cedar stumps that washed ashore as its primary siding material, creating a structure that appears to grow organically from its forested surroundings. The home demonstrates how locally sourced natural materials can produce stunning architectural results while minimizing environmental impact. For homeowners seeking inspiration from unique residential designs, the concept of blending a structure into its landscape echoes the principles seen in other unique and alternative home designs that prioritize harmony with nature. This article explores the design principles, construction methods, material selection, and lasting architectural value of the tree stump home and how these lessons apply to modern building practices.
Site Selection and the Philosophy of Blending with Nature
The tree stump home sits on the forested shoreline of Lake Pend Oreille, one of the deepest lakes in the United States. Its location in northern Idaho presents both opportunities and constraints that shaped every aspect of the design.
Why Site-Driven Design Matters
The fundamental principle behind the tree stump home is that a building should respond to its environment rather than dominate it. Terry Anderson chose materials that already belonged to the landscape, creating a seamless visual transition between house and forest. This approach reduces the visual intrusion of the structure and enhances the experience of living within the natural setting.
Key Site Considerations
- Native vegetation as design cues: The dense pine and cedar forests surrounding the site dictated a color palette of browns, greens, and earth tones that allow the home to recede into the tree line.
- Lake frontage orientation: Careful positioning of windows and living spaces captures lake views while maintaining privacy from neighboring properties.
- Shoreline regulations: Building near a large lake requires compliance with setback requirements and environmental protections that influenced the home’s footprint and foundation design.
- Access and utility routing: Remote sites demand creative solutions for power, water, and septic systems, especially when preserving the natural grade and vegetation is a priority.
Lessons for Modern Builders
The site-driven approach of the tree stump home teaches an enduring lesson: the most successful buildings are those that respect their context. Contemporary architects and builders increasingly recognize this through sustainable building practices that prioritize minimal site disruption and materials that reflect the local environment.
Material Selection: Cedar Stumps as Siding
The defining feature of this home is its siding: cedar stumps that washed ashore on Lake Pend Oreille, cut into uniform lengths and applied to the exterior walls. This creative use of driftwood transformed what many would consider waste into a beautiful, durable cladding system.
Why Cedar Driftwood Works as Siding
Western red cedar possesses natural properties that make it exceptional for exterior applications. The wood contains natural preservatives called thujaplicins that resist decay and insect damage, allowing it to endure decades of exposure to rain, snow, and sun. Driftwood cedar, having already weathered in the lake, is even more stable and resistant to further degradation.
| Property | Cedar Driftwood | Standard Cedar Siding | Vinyl Siding |
|---|---|---|---|
| Natural decay resistance | Excellent (pre-weathered) | Good | None |
| Insulation value (R-value per inch) | 1.4 | 1.4 | 0.6 |
| Environmental footprint | Zero (salvaged material) | Moderate (harvested) | High (petroleum-based) |
| Durability in wet climates | Excellent | Good | Good |
| Aesthetic uniqueness | Exceptional | Standard | Uniform |
| Maintenance requirement | Low (natural weathering) | Moderate (stain/seal) | Low |
Sourcing and Preparation Process
- Collection: Cedar stumps and logs that had washed ashore were gathered from the Lake Pend Oreille shoreline. This process required permits and coordination with local authorities to ensure compliance with shoreline management rules.
- Cutting to length: Each stump was cut into uniform siding pieces, typically 12 to 24 inches long, depending on the original diameter of the log. The round cross-sections create a distinctive textured appearance reminiscent of stacked cordwood or log-end masonry.
- Drying and conditioning: The cut pieces were allowed to air dry further before installation, ensuring dimensional stability and reducing the risk of shrinkage gaps after mounting.
- Treatment (minimal): Because the wood had already weathered in the lake for months or years, additional chemical treatments were unnecessary. The natural gray patina was preserved as the finished surface.
The choice of salvaged driftwood cedar aligns closely with the principles of materiality in architecture, where the intrinsic qualities of a material define the character and performance of the building.
Construction Methods for Non-Standard Siding Materials
Applying tree stumps as siding required innovative construction techniques that differ substantially from conventional lap siding or shingle installation. The methods developed for this project offer valuable insights for builders working with reclaimed or irregular materials.
Substrate and Weather-Resistive Barrier
Before the stump siding could be installed, the wall assembly needed a robust weather-resistive barrier. Standard construction practice for this type of installation follows a layered approach:
- Structural sheathing (plywood or OSB) attached to the wall framing
- A weather-resistive barrier such as building paper or house wrap, lapped shingle-style to shed water
- Vertical furring strips to create a drainage plane behind the siding
- A secondary insect screen at the base to prevent nesting while allowing airflow
Attachment Methods
Each cedar stump piece was fastened individually to the wall substrate. The weight of the stumps required robust fasteners:
- Stainless steel or hot-dipped galvanized nails were used to prevent corrosion staining on the cedar surface.
- Two fasteners per piece, positioned near the top and bottom, secured each stump section.
- Pieces were tightly butted against one another, with the natural variation in diameter creating an organic, textured pattern across the wall surface.
- Corners were handled by alternating overlapping pieces, similar to log cabin construction, to maintain the visual continuity of the stucco-like stucco texture.
Moisture Management Considerations
One of the critical challenges with any solid wood siding is managing moisture. The cedar stumps, being round in cross-section, create unique conditions at the wall surface. The drainage plane created by furring strips is essential because it allows any moisture that penetrates the siding to drain downward and exit at the base of the wall rather than becoming trapped against the sheathing. This design principle parallels the techniques used in modern exterior cladding design strategies that emphasize drainage and drying potential.
Architectural Legacy and Lessons for Contemporary Construction
The tree stump home on Lake Pend Oreille, built in the early 1980s, has endured for over four decades as a testament to thoughtful material selection and site-responsive design. Its longevity offers measurable lessons for today’s builders and homeowners.
Durability of Salvaged Materials
The fact that the cedar stump siding has remained intact and functional for over 40 years with minimal maintenance challenges the assumption that reclaimed materials are inherently less durable than manufactured alternatives. The western red cedar’s natural resistance to decay, combined with proper installation detailing, has proven more than adequate for the northern Idaho climate, which experiences heavy snowfall, spring rains, and summer dryness.
Architectural Authenticity
Perhaps the most valuable aspect of the tree stump home is its authenticity. The materials tell a honest story: they came from the lake, they belong to the place, and they will gracefully return to the earth when the house eventually reaches the end of its service life. This approach stands in stark contrast to manufactured siding products that attempt to mimic natural textures through plastic molding and printed grain patterns.
Cost and Labor Considerations
Building with salvaged materials involves trade-offs that prospective builders should understand:
- Material cost: The cedar stumps were essentially free, representing a significant savings compared to purchasing new cedar siding, stone veneer, or manufactured alternatives.
- Labor intensity: Collecting, cutting, drying, and individually fastening each stump piece requires substantially more labor than installing standard siding panels or shingles. This labor investment, however, creates a one-of-a-kind result.
- Long-term value: The durability of the materials, combined with the uniqueness of the finished home, can enhance property value for buyers seeking distinctive architectural character.
Key Takeaways for Builders
- Look locally first: The most sustainable and contextually appropriate building materials are often those already present in the local environment.
- Design the wall assembly carefully: Non-standard siding materials require careful attention to drainage, ventilation, and fastening to ensure long-term performance.
- Accept natural variation: The beauty of salvaged and natural materials lies in their irregularity. Embrace the character that mass-produced materials cannot replicate.
- Plan for the long term: A home built with natural materials ages differently than one built with synthetics. Design with the understanding that weathering and patina are features, not flaws.
The tree stump home stands as a powerful reminder that exceptional architecture does not require exotic materials or extravagant budgets. Sometimes the best building material has been floating on the lake, waiting for someone to see its potential. By choosing to build with what nature provides, homeowners and builders can create structures that are not only beautiful and durable but also deeply connected to the places they inhabit.