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Grandio Greenhouses Summit 12x24

Order today. Estimated delivery Jun 20–Jun 25

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$8,294.00
$7,899.00
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★★★★★ 5.0 · 280+ reviews
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Product Description

Key Features

Heavy-Duty Construction & Rust ProofHeavy-Duty Construction & Rust Proof

Exceptional Year-Round InsulationExceptional Year-Round Insulation

Impressive 9.25' Peak Height Maximum Headroom & Vertical SpaceImpressive 9.25' Peak Height Maximum Headroom & Vertical Space

Advanced Ventilation & All-Weather PerformanceAdvanced Ventilation & All-Weather Performance

Wide, Lockable, Double Sliding DoorsWide, Lockable, Double Sliding Doors

Explore the Grandio Summit 12x24 Greenhouse Kit

Welcome to the Grandio Summit Greenhouse

This is the ultimate large-format greenhouse for serious gardeners — built commercial-grade yet perfect for dedicated hobbyists.

With an impressive 9.25-foot peak height, over 12 feet of width, and massive sliding doors, the Summit delivers exceptional headroom and spacious growing area. Its bold barn-style design combines rugged strength with beautiful aesthetics that stand out in any backyard or garden.

Crafted with premium 10mm twin-wall polycarbonate panels and Grandio’s heaviest-duty powder-coated aluminum frame, the Summit offers superior insulation and durability that handles harsh weather with ease. Enjoy smooth-gliding lockable doors, excellent roof ventilation, built-in rain gutters, and the included snow load kit — all backed by Grandio’s reliable long-term warranties.

The Grandio Summit is the perfect choice when you want maximum space, professional-level performance, and a greenhouse that grows with you.

Built for All-Season Performance
Efficient insulation, ventilation, and weather protection help create a reliable growing environment throughout the year.

Specifications

  • Height: 9' 3"
  • Width: 12'
  • Length: 24'
  • Frame Material: 1.2 mm heavy-duty aluminum with reinforced 1.5 mm areas
  • Reinforcement: Cross roof trusses and cross corner bracing
  • Frame Finish: Powder-coated green
  • Door Type: Bind-resistant double sliding door
  • Latch System: Magnetic latch with key lock
  • Door Dimensions: 3' 5" x 7' 1.5"
  • Polycarbonate Panel Thickness: 10 mm
  • Roof Vents: 12
  • Rain Gutters: Built-in
  • Steel Base Kit: Sold separately
  • Snow Load Kit: Included
  • Optional Back Door Kit: Available
  • Extendable: Yes, in 4' length extensions
  • Anchor Compatibility: Wood, concrete, dirt
  • Snow Rating: Maximum snow load of 25 lbs./ft²
  • Wind Rating: Withstands winds up to 76 mph when properly anchored

Basic Includes:
 12 Roof Windows, Rain Gutters, Drain Kit, Extreme Snow Load Kit

Grandio Summit 12x24 Accessories Upgrade
Includes: 12 Auto Window Openers, 2 Packs (10) Plant Hangers, 1 Trellis Kit, 1 Drip Kit, 2 Bottles of Cleaner (8oz.)

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