Open-Source Architecture Anyone Can Build

Design in 3D. Generate cut lists. Source locally. Build with common tools.

Preparing your 3D workspace…

Open-Source Architecture Anyone Can Build

Design in 3D. Generate cut lists. Source locally. Build with common tools.

Design modular structures in 3D, generate exact cut lists, source materials locally — saunas, greenhouses, offices, and more.

Open Source on GitHub · 100% Open Source · 10 Languages · Global Community
3 Prototypes Built Standard Lumber Only Open Source Hardware Common Hand Tools

How It Works

From idea to reality in three simple steps

1

Design

Configure your layout in our free 3D tool. Choose modules, materials, and placement.

2

Source

Get instant quotes from local suppliers who receive your exact design and cut list.

3

Build

Pick your supplier, receive your materials, and build with step-by-step guidance.

Built for Real

Three prototypes built. Standard lumber. Common tools. No contractors.

~200 2×4s + 4 Sheets
2.6×2.6m Backyard Footprint
$0 License Fees
100% Open Source
~2 Build Time
3 Basic Tools

Why Thiosphere?

See how modular open-source building compares to traditional options.

Traditional Build

  • $15K–$40K contractor costs
  • 3–6 month timeline
  • Specialized tools required
  • Fixed, permanent structure
  • Contractor-dependent

Thiosphere

  • Under $7K in materials
  • Build over a couple of weekends
  • 3 basic tools
  • Portable and modular
  • DIY with complete plans

Not your grandpa's workshed.

Support Development & Get the Plans

Two ways to support: Buy individual handbooks as they're released, or become a Lifetime Supporter and get everything we ever build.

The designs are free forever on GitHub. The handbook is how you fund the next one.

Standard Edition
$29
The Essential Start.
Get the Whole Thiosphere Handbook now. Buy additional handbooks as they release ($25-55 each).
  •  Current PDF Plans
  •  Complete Build Guide
  •  Future Updates
Standard - $29
Founder's Edition
$299
Every handbook we ever release, forever. Sauna, greenhouse, office - all of them. Plus direct team access and founder badge.
  • All Future Handbooks
  • Lifetime Updates
  •  Founder's Badge & Swag
Founders - $299

Latest from the Workshop

Follow our journey building in public. Real progress, real challenges, real solutions.

VIEW ALL BLOG POSTS →

NEWSLETTER SIGNUP

🔥 Our First Product has Launched!

Get the Whole Thiosphere™ Handbook - the complete guide to modular open source spaces - starting at $29!

Founder's Edition includes lifetime access to all planned handbooks!

Buy yours today