The Gigant greenhouse delivers exceptional scale and performance. Crafted in Belgium by Janssens, with a sturdy tubular aluminum frame and 4 mm tempered glass, it features a tall roofline and a vast interior, providing generous space for taller plants and projects. The design allows flexible placement of doors and windows, making it adaptable to both your space and your gardening style.
For dedicated gardeners and hobbyists, the Gigant greenhouse offers a bright, durable environment where plants thrive, and creativity flourishes. It combines European design heritage with modern engineering for lasting beauty, reliability, and year-round inspiration.
Please note: Because the Gigant can only be purchased as a customized model, a special order must be placed with the Janssens factory in Belgium. Lead times are longer than other models.
Key Features
Belgium Engineering: Designed and manufactured in Belgium
Tempered Glass or Polycarbonate: 28” wide- 4mm tempered glass or 10mm twin-wall polycarbonate
Reinforced Frame: Extra support in the roof, sidewall, gable ends
Roof Vents: Support natural ventilation.
Sliding or Hinged Doors: Smooth access and airflow
Gutters: Helps manage rain runoff
Specifications
Glazing:4mm tempered glass panes OR 10mm twin wall polycarbonate Frame:17 gauge tubular aluminum extrusions Heavy duty portal frame supports Heavy duty gable end supports
Colors:Black (RAL9005), Fir Green (RAL6009), White (RAL9010) Custom colors also available - see below
Dimensions
Since Gigant greenhouses are offered only as a special order, they have no default length or width - these dimensions may be customized within certain parameters.
The charts below show possible dimensions for the Gigant greenhouse.Note that the width of the greenhouse will determine both peak height and roof pitch.
*Dimensions are approximate conversions from metric measurements and should not be relied on for assembly purposes. Contact Exaco for more information.
Extra Height
One major advantage of the Gigant greenhouseis the option to extend it's walland peak height by adding a second level of glazing panels to the side walls. The options for extensions are:
1'0"
1'8"
2'11"
Additional Options
Doors & Windows: There is no standard configuration of doors and windows. Customers may select their desired options from the 'Accessories' list to the right.Please note that double doors can only be installed in walls that contain at least 4 panels.
Glazing: Customers may substitute narrow panels (~1'2" width) for the standard glazing panels (~2'4" width) at a rationof 2:1.This will not affect the overall dimensions of the greenhouse. On the roof of glass models, customers may substitute polycarbonate glazing panels for the glass glazing panels.
Decorative Panels: Customers may choose to add decorative metal panels along the bottom of the side walls, identical to those found on theRetro Victoriangreenhouse.
Colors: Customers may choose a color from the RAL Color System outside of the default options.
Special Notes
The Gigant greenhouse is an advanced build and should only be assembled by a contractor or highly skilled handyman. Please consider the following:
On glass models, the roof glazing panels are extremely large and heavy and may require additional support scaffolding during assembly.
Hardware for attaching this greenhouse to a building is not included
Weather stripping for sealing the gap between this greenhouse and a building is not included.
Due to the high level of customization for this greenhouse, Exaco cannot provide structural certifications(but we can put you in touch with the engineering firm that provided ours).
Shipping & Permits
Shipping Credit Included- My Homestead Store covers the first $1,750 of shipping and freight costs on this Greenhouse/Pavilion/Garden Room/Outdoor Structure order. If shipping exceeds $1,750, the additional amount will be quoted and approved by the customer before shipment.
Permits- If your Greenhouse/Pavilion/Garden Room/Outdoor Structure requires a local building permit, we recommend obtaining permit approval before placing your order, as requirements vary by location.
Shipping: Complimentary shipping is included on most products. Select oversized items may require a custom freight quote based on your location.
Shipping & Delivery
We offer free shipping across the United States on every order.
Orders are typically processed within 2 business days, with estimated delivery in 3–5 business days depending on your location and the carrier. Once your order ships, you'll receive a tracking email so you can follow its journey from dispatch to delivery.
For oversized or freight items, delivery times may vary slightly based on carrier scheduling.
Returns & Satisfaction Guarantee
Shop with confidence knowing your purchase is backed by our customer-first support.
If your order arrives damaged, defective, or incorrect, we'll arrange a replacement or full refund at no additional cost. For change-of-mind returns, eligible unused items may be returned within 3 days of delivery, subject to our return policy and applicable restocking fee.
If you need assistance, our support team is here to help every step of the way.
