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TMG-GHA1221

Alpine Series 11' x 21' Sunroom Greenhouse, 8'4" Height, Polycarbonate Roof and Glass Walls, Heavy Aluminum Frame, Slide & Lock Assembly, TMG-GHA1221

Alpine Series 11' x 21' Sunroom Greenhouse, 8'4" Height, Polycarbonate Roof and Glass Walls, Heavy Aluminum Frame, Slide & Lock Assembly, TMG-GHA1221
CURRENTLY OUT OF STOCK
SKU TMG-GHA1221
$6,699.00 CAD - $6,699.00 CAD
$6,699.00 CAD
$6,699.00 CAD - $6,699.00 CAD
$6,699.00 CAD
$6,699.00 CAD

FREE

shipping to most locations in

Canada

Delivered in 10 to 15 business days Learn More
1-877-761-2819
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Features

  • Modular Expandable Design: Flexible frame architecture allows seamless extension in length by adding 2-section modular assemblies anytime.
  • Pre-Installed Assembly Nuts: Revolutionary pre-installed profile nuts eliminate loose hardware, cutting total setup time by over 50%.
  • Heavy-Duty Box Frame: Engineered with high-grade box-section aluminum profiles and full horizontal wall and roof bracing.
  • Hybrid Glazing Construction: Combines clear tempered glass walls for high visibility with twin-wall UV-protected polycarbonate roof panels.
  • Deep Glazing Channels: Securely holds panels inside the frame profile to prevent blowouts during severe wind conditions.
  • Integrated Gutters: Built-in drainage system featuring 4 aluminum downpipes for effective rainwater collection and runoff management.
  • Enhanced Ventilation Control: Equipped with 6 large opening roof vents to maximize airflow, regulate internal temperatures, and maintain optimal growing conditions.

Specifications

  • Footprint (Square Footage): 239.0 sq. ft (22.2 sq. metres)
  • Overall Dimensions (W x L x H): 11' 4" x 21' 3" x 8' 4" (345 x 649 x 254 cm)
  • Eave Height: 4' 11" (150 cm)
  • Ridge Height: 8' 4" (254 cm)
  • Door Style: Hinged double opening door
  • Door Opening Size (W x H): 5' 3" x 5' 10" (159 x 179 cm)
  • Roof Vent Size (W x H): 1' 10" x 2' 7" (56 x 80 cm)
  • Number of Roof Vents: 6
  • Wall Glazing Material: 4mm clear tempered glass
  • Roof Glazing Material: 6mm twin-wall polycarbonate with UV protection
  • Aluminum Frame Thickness: 1.0 - 2.0 mm
  • Aluminum Frame Coating: black powder-coating
  • Design Wind Resistance: 110 km/h (68 mph)
  • Design Snow Load: 90 kg/sq. m (18.4 PSF)

Product Description

Transform your outdoor living area and elevate your plant cultivation with the TMG Industrial Alpine Series 11' x 21' Sunroom Greenhouse. Designed to deliver an ideal balance of aesthetic elegance and structural strength, this greenhouse features high-grade 4mm tempered glass side walls for panoramic outdoor views and high light transmission. The roof is outfitted with impact-resistant 6mm twin-wall hollow polycarbonate panels that insulate against temperature swings and filter harmful UV rays, creating a protected sanctuary for seedlings, delicate flowers, and year-round gardening.

Built around an ultra-heavy-duty box section aluminum frame, the structure utilizes full horizontal bracing across all walls and roof sections to withstand extreme environments. Featuring 10mm deep aluminum glazing channels, all glass and polycarbonate panels are locked firmly into place, eliminating panel blowouts even during winds exceeding 110 km/h and supporting heavy winter snow loads up to 90 kg/sqm. Integrated gutter networks with four aluminum downpipes effectively capture and channel rainwater off the roof structure.

What truly sets the Alpine Series apart is its innovative assembly technology. Designed to streamline setup, all assembly nuts come pre-installed directly inside the aluminum channels, eliminating the tedious process of sliding loose bolts into place and reducing overall assembly time by over 50%.

The modular design also enables easy expansion, allowing you to increase the overall length using 2-section add-on kits whenever your garden grows. Featuring a smooth hinged double entry door and six large opening roof vents for optimized airflow, this sunroom greenhouse offers a durable, elegant, and low-maintenance retreat for every growing season.

TMG also carries the following sunroom greenhouses and extension kits:
TMG-GHA1208
TMG-GHA1210
TMG-GHA1216
TMG-GHA12X (extension kit).

Shipping Information

Your order will be shipped from one of our main warehouses in Canada. Orders are typically processed and shipped within 2 to 3 business days under normal circumstances. Delivery usually takes 10 to 15 business days, depending on location and accessibility.

  • This product is packed in 7 carton and wood crate shipping boxes.
  • Shipping Dimensions:
    Base Greenhouse Unit (TMG-GHA1210):
    Box A (Aluminum Frame, carton): 133" x 12" x 8" (337 x 30 x 20 cm)
    Box B (Aluminum Frame, carton): 80" x 12" x 10" (204 x 30 x 25 cm)
    Box C (Glass & Polycarbonate Panels, Wood Crate): 77" x 37" x 12" (195 x 95 x 30 cm)
    Extension Kit #1 (TMG-GHA12X):
    Box A (Aluminum Frame, carton): 79" x 12" x 7" (200 x 30 x 17 cm)
    Box B (Glass & Polycarbonate Panels, Wood Crate): 77" x 39" x 6" (195 x 98 x 15 cm)
    Extension Kit #2 (TMG-GHA12X):
    Box A (Aluminum Frame, carton): 79" x 12" x 7" (200 x 30 x 17 cm)
    Box B (Glass & Polycarbonate Panels, Wood Crate): 77" x 39" x 6" (195 x 98 x 15 cm)
  • Shipping Weight: 1413 lbs (641 kg) total
Shipping from Richmond, BC, or Mississauga, ON
What happens after you place your order?

Warranty

We know that when you invest in equipment, you're counting on it to perform day in and day out. At TMG Industrial, that trust means everything to us. That’s why we include a 1-year Warranty with every product we sell—because you deserve confidence with every purchase.

Our warranty is there to make sure your equipment stays reliable across the seasons, covering any issues caused by manufacturing defects in materials or workmanship. From fieldwork to property maintenance, you can count on your TMG equipment to deliver.

More than just warranty coverage, we’re committed to supporting you throughout the life of your machine. Our customer service team is here to help, whether you need technical advice, troubleshooting, or parts support.

For full warranty terms, please see our warranty policy
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In-Store Pickup orders are ready by appointment only, 24 hours after payment has been received
02
Credit card owner must be on site with ID and credit card used to place the order
03
If the order is arranged for a third party pickup (a freight company, family members or friends), the order must be paid through EFT (electronic fund transfer).
CALL TO ORDER
Hours: Mon-Fri 9AM-4PM local time
In-Store Pickup orders must be picked up within 5 business days, after which the discount price is voided.

Warehouse Pick-up Price Promo



Only to in-person self-pickup at our Warehouses in Richmond, Montreal and Mississauga

This offer is not applicable with any other promotions or for online orders, and is limited to one item per person only.

Please note that prices are subject to change.
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Hours: Mon-Fri 9AM-4PM local time
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