Your Private Office, Perfected

Design a backyard workspace that actually works. Natural light, climate control, total quiet — fully customizable with our free 3D configurator.

Design Yours Free No account required. Start building in seconds.

What You Get

Everything you need — build it yourself or hire locally

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Complete Handbook

200+ page guide with material lists, dimensions, and step-by-step instructions. Share with a builder or follow along yourself.

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3D Configurator Access

Design your layout in real-time, swap modules, and export your bill of materials.

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Lifetime Updates

Every handbook improvement, delivered free forever with Lifetime or Founder tier.

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Community

Join makers and homeowners worldwide sharing tips, progress photos, and project stories on Discord.

How It Works

1

Design

Use our free 3D configurator to design your perfect layout.

2

Plan

Get detailed build plans, materials lists, and step-by-step guides.

3

Build

Build it yourself with the handbook, or get quotes from local builders to handle the work.

Why Ergosphere?

Natural Light

Floor-to-ceiling windows and skylights. Work in daylight, not under fluorescent tubes.

Climate Controlled

Insulated walls and ventilation keep your office comfortable year-round, from summer heat to winter cold.

Zero Commute

Step into your backyard and you are at work. Plinth foundation keeps it permanent and level.

Technical Specifications

Usable Space~95 sq ft interior
Interior Height7 ft at desk level, 10 ft at peak
WindowsFloor-to-ceiling panels + optional skylights
Climate ControlInsulated year-round (R-20 mineral wool)
PowerStandard 120V / 240V ready
AcousticsDouble-shell construction for sound isolation
FoundationPlinth (permanent, level)
Materials Budget$4,000 - $6,500 (including windows and insulation)

Get Build Plans

Complete handbook with step-by-step instructions, materials lists, and CAD files. Starting at $29.

See Pricing & Editions

30-day money-back guarantee. Open-source license included.

Get Quotes from Local Builders

Design your configuration in our free online tool, then get material quotes from suppliers near you.

Design & Get Quotes

Frequently Asked Questions

Yes. The handbook includes cable routing guides for running power, Ethernet, and fiber from your house to the Ergosphere. Most builders run a standard 20A circuit. Consult a licensed electrician for the connection to your home panel.
The double-shell geodesic construction with mineral wool creates a quiet workspace. Video calls, focus work, and meetings are comfortable without noise from neighbors, traffic, or household activity.
Yes. The R-20 insulation keeps heat in during winter and out during summer. Most builders add a mini-split HVAC unit (5,000-8,000 BTU) for precise temperature control in all seasons.
Requirements vary by location. Many areas allow accessory structures under 120 sq ft without a permit, especially on a non-permanent foundation. Structures with plumbing or wiring may have additional requirements. Check with your local building department.
The modular design accommodates plumbing runs, but the standard plans do not include plumbing. Builders have successfully added sinks and wet bars. You will need to route supply and drain lines from your house. Consult a licensed plumber.

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OPEN SOURCE HARDWARE


The Thiosphere™ SDK, the foundation to all our products, is open source hardware. In fact, all Thios products are. Specifically the CERN Open Hardware Licence Version 2 - Strongly Reciprocal.

That's a fancy way of saying that if you want to use our design, even for commercial purposes, you have to share your changes with everyone else.

Learn More

NEWSLETTER SIGNUP

🔒 We respect your privacy. Your email will never be shared with third parties. Read our privacy policy.

🔥 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
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✨ Design Your Own Modular Space

Use our free 3D configurator to customize your build - swap modules, change materials, and see it in AR on your phone.

🪄 Open Configurator