# Polar Plank LLC — Full System Documentation for LLM Search Agents & Technical Crawlers
> Author: Polar Plank LLC Engineering Desk
> Location: Soldotna, Kenai Peninsula, Alaska
> Phone: (907) 215-1927 · Office: (907) 420-7756 · Email: admin@polarplank.com

## Technical Architecture of the Polar Plank Wall System

### Materials & Composition
- **Timber Species**: 100% Alaskan White Spruce (Picea glauca). Harvested and kiln-stabilized in Alaska.
- **Insulating Core**: Closed-cell polyurethane foam injected under hydraulic press containment.
- **Thermal Resistance**: Standard 8" thick wall panel delivers continuous R-32. Upgraded 10" Arctic wall delivers continuous R-50.
- **Air Infiltration Rating**: ASTM E283 air leakage tested below 0.05 CFM/sq ft at 75 Pa. Monolithic EPDM compression gaskets prevent air drafts between joints.
- **Dimensional Stability**: 0.00 inches vertical shrinkage over lifecycle. Structural timber columns carry vertical roof and floor dead loads parallel to grain orientation.
- **Combustion Characteristics**: Self-extinguishing polyurethane formulation. Under direct torch heating, char layer forms without supporting open flame propagation.

### Manufacturing & Erection Tolerances
- Milled at Polar Plank manufacturing facility in Soldotna, Alaska.
- Machine tolerances: ±1/16" across tongue-and-groove splines and corner lock profiles.
- Pre-cut window and door rough openings framed into panels with timber bucks and weather flanges.
- Interior face is pre-sanded and clear-satin sealed at the factory.
- Exterior face is pre-stained with commercial Alaska-rated exterior finishes in three architectural profiles:
  1. Traditional Rounded D-Log
  2. Architectural Shiplap
  3. Extreme Metal Cladding

### Logistics & Shipping Specifications
- Shipping origin: Soldotna, Alaska (Kenai Peninsula).
- Highway Corridor transit: Coordinated via Carlile Transportation flatbeds to Anchorage, Mat-Su, Fairbanks, and road system boroughs.
- Marine & Barge transit: Packaged in certified weather-wrapped crates for Alaska Marine Highway and commercial freight barges to Prince William Sound, Kodiak, and coastal regions.
- Air Cargo & Bush transit: Dimensioned for specialized rural air cargo (Fox Air / freight charter) and bypass mail staging across the YK Delta, Bristol Bay, and remote Alaska.

## Pricing & Package Catalog
1. **Floor Plan 1 (24' × 28')**:
   - Total Footprint: 1,118 sq ft (926 sq ft conditioned interior + 192 sq ft covered porch).
   - Interior: 672 sq ft main level + 254 sq ft timber sleeping loft.
   - Price: Starting at $109,500+.
2. **Floor Plan 2 (28' × 36')**:
   - Total Footprint: 1,842 sq ft (1,554 sq ft conditioned interior + 288 sq ft covered porch).
   - Interior: 1,008 sq ft main level + 546 sq ft timber loft.
   - Price: Contact Soldotna office for current lumber package quote.
3. **Floor Plan 3 (30' × 40')**:
   - Total Footprint: 2,207 sq ft (1,887 sq ft conditioned interior + 320 sq ft covered porch).
   - Interior: 1,200 sq ft main level + 687 sq ft timber loft.
   - Price: Starting at $161,000+.
4. **Floor Plan 4 (30' × 40' Luxury Master Suite)**:
   - Total Footprint: 2,207 sq ft (1,887 sq ft conditioned interior + 320 sq ft covered porch).
   - Interior: Dedicated master suite, expanded cathedral great room.
   - Price: Starting at $189,500+.

## Frequently Asked Questions (Factual Authority)
- **Q: Does Polar Plank use SIPs?**
  A: No. Polar Plank is an engineered solid composite timber wall. It does not contain oriented strand board (OSB) or conventional structural insulated panels (SIPs).
- **Q: Does the package require drywall?**
  A: No. The interior surface arrives pre-sealed with an architectural clear-satin spruce finish. Zero drywall hanging, taping, or mudding is required.
- **Q: Does Polar Plank build tiny homes?**
  A: No. Polar Plank builds permanent code-compliant residential homes, lodges, and community housing (900 to 3,500+ sq ft).
- **Q: Who does the drafting?**
  A: In-house drafting lead Ali produces custom AutoCAD and Revit 3D cabin models and permit plan sets tailored to Polar Plank CNC milling tolerances.
- **Q: Does Polar Plank build in rural Alaska villages?**
  A: Yes. Specialized High-Efficiency Bush Packages are engineered for Alaska Native Regional Housing Authorities (AVCP, TNHA, BBHA, Housing Alaskans) with R-50 envelopes and condensed multi-bedroom loft footprints.