18' Growing Dome Ventilation Kit
For additional active ventilation, add an extra hybrid fan and an upper vent to your 18' Growing Dome. This will increase the air exchange to one full volume of air every 31 seconds.
$995.00
Questions? Call us at 800-753-9333.
Our friendly Growing Dome Advisors are experts at helping you choose a geodesic greenhouse kit configuration for your climate and unique needs.
Reviews
Greenhouse Guide
| Specification Swipe | 15' Growing Dome Greenhouse Kit | 18' Growing Dome Greenhouse Kit | 22' Growing Dome Greenhouse Kit | 26' Growing Dome Greenhouse Kit | 33' Growing Dome Greenhouse Kit | 42' Growing Dome Greenhouse Kit |
|---|---|---|---|---|---|---|
Growing Dome Greenhouse Kit Specifications | ||||||
Price | $11,950.00 | $15,950.00 | $21,850.00 | $26,850.00 | $36,750.00 | $54,750.00 |
Approx. Diameter | 15 ft | 18 ft | 22 ft | 26 ft | 33 ft | 42 ft |
Approx. Sq. Ft. | 175 ft² | 255 ft² | 380 ft² | 530 ft² | 855 ft² | 1,385 ft² |
Height | 9 ft 5 in | 10 ft 8 in | 10 ft 10 in | 12 ft 7 in | 15 ft 7 in | 16 ft 6 in |
Air Cubic Ft. | 520 ft³ | 1,250 ft³ | 2,246 ft³ | 3,740 ft³ | 7,390 ft³ | 12,175 ft³ |
Approx. Pond Capacity | 750 gal. | 800 gal. | 1,150 gal. | 1,300 gal. | 2,600 gal. | 3,200 gal. |
Approx. Pond Dimensions | Oval: 9' long x 4' wide | Oval: 9' long x 4' wide | Oval: 12' long x 5' wide | Oval: 13' long x 5' wide | Round: 11' diameter | Round: 13' diameter |
Shipping (USVI, Puerto Rico, Intl: Call 800-753-9333 for a shipping estimate.) | ||||||
Colorado | $1,095.00 | $1,265.00 | $1,415.00 | $1,565.00 | $1,985.00 | $3,355.00 |
R1 - Southwest | $1,355.00 | $1,545.00 | $1,725.00 | $1,895.00 | $2,385.00 | $3,915.00 |
R2 - Plains | $1,725.00 | $1,935.00 | $2,145.00 | $2,365.00 | $2,945.00 | $4,695.00 |
R3 - Northwest & South | $2,185.00 | $2,415.00 | $2,665.00 | $2,935.00 | $3,635.00 | $5,665.00 |
R4 - West Coast, Southeast and Midwest | $2,205.00 | $2,435.00 | $2,685.00 | $2,965.00 | $3,655.00 | $5,695.00 |
R5 - East Coast | $2,735.00 | $3,005.00 | $3,295.00 | $3,635.00 | $4,465.00 | $6,825.00 |
R6 - Alaska and Hawaii | $3,425.00 | $3,975.00 | $4,615.00 | $5,375.00 | $6,895.00 | $10,725.00 |
Growing Dome Greenhouse Kit Options | ||||||
Misting System | $95.00 | $95.00 | $95.00 | $95.00 | $135.00 | $230.00 |
Extra Water Feature | $350.00 | $350.00 | $350.00 | $350.00 | $350.00 | $350.00 |
Solar Intake Fan | $595.00 | $595.00 | $595.00 | $595.00 | $995.00 | $995.00 |
Extra Vent | $495.00 | $495.00 | $495.00 | $495.00 | - | - |
Electric Intake Fan | $495.00 | $495.00 | $495.00 | $495.00 | $495.00 | $495.00 |
Solar Attic Fan Upgrade | - | - | - | $645.00 | - | - |
Extra Solar Attic Fan 45w | - | - | - | $995.00 | - | - |
Extra Door | - | - | - | $950.00 | $950.00 | $950.00 (3rd Door) |
Solar Upgrade | - | - | - | - | $1,490.00 | $1,990.00 |
Extra Solar Attic Fan 65w | - | - | - | - | $1,195.00 | $1,195.00 |
Growing Dome Greenhouse Installation (Call 800-753-9333 for pricing) | ||||||
DIY Owner Self | No Charge | No Charge | No Charge | No Charge | No Charge | No Charge |
Supervisor Only | Available | Available | Available | Available | Available | N/A |
Supervisor Plus One | N/A | N/A | Available | Available | Available | Available |
Full Crew | Available | Available | Available | Available | Available | Available |
Shipping & Return
Updated November 10, 2025
RETURNS
All sales are final. We do not accept returns or exchanges. Order cancellations are permitted prior to shipment. Once an order has shipped, it can no longer be canceled.
CANCELLATION POLICY
Orders cancelled at any time are subject to a 5% restocking and processing fee, deducted from any refund due.
If the order is cancelled within 20 business days of the scheduled shipment date, an additional 5% of the full order value will be withheld (total 10%). The remaining balance will be refunded within 90 days of cancellation to allow for material reconciliation, scheduling updates, and refund processing.
Cancellations are not permitted for custom orders, defined as changes to structural design, size, or non-standard component substitutions. In practice, this means that the production deposit for a custom order will be forfeited upon cancellation. Growing Spaces will not enforce delivery for unpaid custom orders.
When using Affirm:
Our normal change/cancellation rules apply. If you cancel an Affirm-financed order, any eligible refund of amounts already captured will be routed back to Affirm; Affirm will adjust your loan per its terms. If you change your order (options, pricing, add/remove items), we will:
- attempt an Affirm amount adjustment (subject to Affirm approval), or
process the difference via a non-Affirm payment method before the order proceeds.
Updated November 10, 2025
SHIPPING
Growing Spaces will choose the shipping method and schedule based on cost and timing, with typical lead times of 4–8 weeks depending on the season. You’ll be notified when your order has a production and ship date, and you’ll receive tracking once it leaves our facility. We ask carriers to provide a 24-hour call-ahead to schedule delivery.
Shipping costs are non-refundable. Once your order is picked up, risk of loss or damage transfers to the carrier. While we don’t insure shipments, we’ll help you work with the carrier and support you in filing damage claims. Any damage must be reported at delivery, noted on the freight paperwork, and documented with photos.
Orders may ship up to five business days before the planned ship date, and any changes or postponements may incur fees. Growing Dome® kits ship in large, heavy crates via full-size tractor-trailer or large box truck. It is your responsibility to ensure your location can safely accommodate these vehicles, including enough space, height, width, turning radius, and suitable road conditions. If you need special arrangements (such as smaller trucks, liftgate, forklift, or offloading help), you must notify us before shipment; any extra charges or redelivery due to access issues are your responsibility. Financing does not change lead times, shipping coordination, risk transfer, or your responsibility to inspect and report any damage.
Pagosa Springs Facility
Pagosa Springs Facility
Pickup available, usually ready in 5+ days
1868B Majestic Drive Box #5518 Pagosa Springs CO 81147 United States
+19707312120
