18ft / 5.5m Geodesic Dome Designs

18ft / 5.5m Geodesic Dome Design

Simple Geodesic Dome DIY Build Plans (Imperial and Metric). These plans include everything you need to construct your own dome or zome greenhouse, cabin, sauna, glamping / Airbnb, trellis, shade structure, off-grid bunker, or tiny house. Beginner woodworking plans. No specialty hardware, tools or hubs required.

Just the Plans :

$75.00

Plans + 3D Model :

$145.00

Plans + 3D Model :
$145.00

What is included in the plans?

(1) Dome and Zome Builders Guide PDF
(1) Trillium Domes Build Plan – Imperial – PDF
(1) Trillium Domes Build Plan – Metric – PDF

Priority support from our team

What is included in the Sketchup 3D Model?
Opting for the Sketchup model allows you the ultimate freedom when exploring, scaling or altering your Trillium Domes project. Sketchup is a free program that will allow you to import every detail of your Trillium Domes design into a workable, digital space. This gives you maximum creative potential and a totally different view of your project. Many files include alternate designs never released as plans! Check the short video above in Model Specs to see a detailed view of what’s included in each specific model.
Widest Diameter – 18′ , 5.486 m
Max Height – 12′ 9 3/16″, 3.891 m
Area – 250 sq ft , 23.2 sq m
Dome Surface area – 568 sq ft , 52.75 sq m
Wall Surface area – 103 sq ft, 9.5 sq m
(1) 4’x10’x3/4″ AC plywood

(32) 2x6x12 KD (dome frame)

(8) 2x6x12 KD (pony wall)

(3) 2x6x12 PT (pony wall)

105 sq ft siding (pony wall)

~1000 sq ft greenhouse plastic

~200′ greenhouse repair tape

15lb 2″ screws

10 lb 3″ screws

(2) Box of staples

(2) gallons paint/stain

Paint brush/roller/sprayer

(2) door handles

Door Hinges

(4) pair window hinges

2-way gate latch

(4) gas pistons for windows (used for cabinets)
⦁ Sign up for our email list to get your free Dome and Zome Builders Guide PDF! (Bottom of page https://trilliumdomes.com/)

⦁ Our FAQ (https://trilliumdomes.com/faq/)

⦁ Our Step-By-Step Video Guides (https://www.youtube.com/@trilliumdomes)

⦁ Looking to start your own business building domes and zomes? We can help! Check out our Trillium Domes Builders Collective and get in touch! (https://docs.google.com/document/d/105zpa5uQ5CVQungiD3odMVwjiguR5Q1nsL7On3DRv0Y/edit?usp=sharing)

⦁ Find the Materials and Equipment you need for your project! (https://trilliumdomes.com/equipmentmaterials/)

⦁ Stay updated day to day through our Instagram! (https://www.instagram.com/trilliumdomes)

⦁ Reach out to us about your project via our Contact Page! (https://trilliumdomes.com/contact/)

NEED HELP ALONG THE WAY?

When you buy any Trillium Domes plan, you'll get priority support from our team & access to our private Dome Builders Facebook Group

Ask Johnny and and the rest of the group any questions you might have about your build. Share your dreams, ideas, plans, techniques, and finished projects! Need 1-on-1 support? Shoot us a message and we'll make sure to help however we can.