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This 28-foot tiny house shell by TREK Tiny Homes offers a professionally built structure ready for interior finishing. At 238 square feet on a custom triple-axle trailer, the shell includes 2×4 walls, 2×6 floor joists, closed-cell spray foam insulation, and Andersen 400 windows throughout.
The exterior features black 26-gauge steel siding and roofing with a modern aesthetic. The layout is designed for a 5-foot bathroom, 7’2″ loft, and space for an elevator bed in the rear sitting area. Built in 2022 and located in Berkley, Massachusetts.
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Modern Exterior with Steel Siding
Images via TREK Tiny Homes/Tiny Home Builders
Unfinished Interior Ready for Customization
Images via TREK Tiny Homes/Tiny Home Builders
Loft Area with 7’2″ Height
Images via TREK Tiny Homes/Tiny Home Builders
2×4 Wall Framing and 2×6 Floor Joists
Images via TREK Tiny Homes/Tiny Home Builders
Custom Triple-Axle Trailer
Images via TREK Tiny Homes/Tiny Home Builders
Black Steel Exterior with Andersen Windows
Images via TREK Tiny Homes/Tiny Home Builders
Rear Section with Elevator Bed Space
Images via TREK Tiny Homes/Tiny Home Builders
Design Details
- Builder: TREK Tiny Homes
- Location: Berkley, Massachusetts
- Year Built: 2022
- Price: $35,000
- Size: 238 sq ft
- Dimensions: 28′ x 8’6″
- Trailer: Custom triple-axle
- Axles: 3 x 7,000 lb capacity
- Brakes: Auto FSA electric
- Jack: 10,000 lb drop leg, bolted in place
- Fenders: Structural square
- Wall Framing: 2×4
- Floor Joists: 2×6 box
- Insulation: Closed-cell spray foam
- Siding: Black 26-gauge steel
- Roofing: Black 26-gauge steel
- Windows: Andersen 400 series (casement style + one fixed picture window)
- Planned Bathroom: 5′ space
- Loft Height: 7’2″
- Special Feature: Space for elevator bed in rear sitting area
- Status: Shell only (unfinished interior)
Lessons from This Build
- Shells Reduce Entry Cost: At $35,000 for a weathertight shell with quality windows and insulation, buyers can spread the remaining finish costs over time while having a solid structural foundation
- Triple Axles Handle Heavy Builds: Three 7,000-lb axles provide 21,000 lbs of capacity, allowing for heavy finish materials like tile, full-size appliances, and dense storage without weight concerns
- Closed-Cell Spray Foam Simplifies Finishing: Pre-installed spray foam insulation means the buyer doesn’t need to handle insulation installation, one of the more technical aspects of tiny house building
- Andersen Windows Add Resale Value: Premium Andersen 400 series windows are a selling point that would be expensive to add after the fact, making this shell more valuable than budget alternatives
- Layout Pre-Planning Guides Finish Work: The designed spaces for bathroom, loft, and elevator bed give buyers a starting framework while still allowing customization within those zones
Learn More
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Alex
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