Archinest Studio
20x20 Modern House Plan
20x20 Modern House Plan
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🏡 20x20 Tiny House Plan 391 sq ft 1 Bedroom Modern Box House Design
This 20'x20' home features an open-concept living room andkitchen, along with a fully equipped bathroom.Since the wall frames are offset, the square footage of the living area differs. Therefore, although the outer frames measure 20' 11 1/8'‘ x 24’, the home's floor area is 391.27 sq ft. The design is optimized for bothshort-term rentals and permanent residence. The design complies with general residential standards and can be customized to suit individual lifestyle needs. The structural frame and details are constructed using traditional wood construction methods in accordance with US buildingcodes.
✨ Plan Features
• Size: 20'x20'
• Total Area: 400 sq ft
• Bedrooms: 1
• Bathrooms: 1
• Floors: 1 Story
• Foundation: Slab Foundation
• Style: Modern / Minimalist Box
Product Specifications
Product Specifications
- Square Footage: 296 sq ft
- Dimensions: 16 ft × 16 ft
- Bedrooms: 1
- Structure Type: A-Frame Cabin
- Format: Digital PDF Plans

FAQs
What is included in the download?
Each purchase includes a complete set of architectural drawings prepared for real construction.
The package contains fully dimensioned floor plans, exterior elevations, building sections, roof and foundation plans, and detailed framing drawings.
In addition, you will receive a numbered timber cut list and material guidance, helping you clearly understand how structural elements come together during the building process.
What file format will I receive?
All plans are delivered as high-resolution PDF files, suitable for both digital use and printing.
If you require editable formats such as DWG or DXF, these can be provided upon request as an additional service.
Are these plans build-ready?
Yes. These plans are designed not only for visualization, but to guide actual construction.
They include accurate dimensions, framing logic, and structural layout information that builders can follow on-site.
However, as with any construction project, working with a local professional is recommended to adapt the design to your specific conditions.
What changes can I make to my plans?
All our house plans can be customized to suit your needs. Common modifications include adjusting windows and doors, reconfiguring interior layouts, changing exterior finishes, adapting kitchen layouts, and altering structural elements like foundations or roof pitch. While simple changes start at $199, more substantial modifications like adding rooms or changing square footage are also possible. These customizations represent significant savings compared to creating a custom plan from scratch.
Do I need an architect to approve these plans?
While our plans are professionally designed, local building codes may require an architect or engineer to review and stamp the plans before submission to your local building department. We recommend checking with your local jurisdiction for specific requirements in your area.
What are the usage rights/license terms?
Our plans are provided for personal and professional use. You have the right to build one structure from the plans for your own use.
Are the plans stamped or sealed?
No. The plans are not stamped or sealed by a licensed engineer or architect.
Due to regional building regulations, most jurisdictions require a local licensed professional to review and approve the drawings before construction.
This is a standard process and ensures the design complies with local codes and site-specific requirements.
Is there support available if I have questions?
Yes! We offer comprehensive customer support. You can reach our team via email or through our online contact form. We typically respond to inquiries within 24 business hours. Our support team can answer questions about the plans, help with modifications, and provide guidance on the building process.