Skip to content
Skip to product information

Outdoor Surplus USA

MONT PREMIUM 12FT GREENHOUSE

Only 3 Left!
Free 60 day returns
Go to cart
Go to cart

Care

  • No special care needed
  • Spot clean with mild soap
  • Machine washable covers (if removable)
  • easy-care, low-maintenance luxury living

 

MONT Greenhouse  ·  Premium Package  ·  Made in USA

MONT 8′ × 12′ Black Greenhouse
Premium Package

Year-Round Growing — Heavy-Duty Aluminum Frame — 10-Year Warranty

A commercial-grade, year-round greenhouse built heavier, insulated better, and equipped more completely than anything else in its class. The MONT Premium Package is the complete growing system — structural frame, twin-wall polycarbonate panels, workbenches, interior shade, programmable irrigation, and the only built-in greenhouse sink on the market — all in one package, backed by the strongest warranty in the industry: 10 years on frame and panels. Made in the USA.

10-Year Warranty Made in USA Year-Round Use Heavy-Duty Aluminum Frame 8mm Twin-Wall Polycarbonate Expandable


8 × 12 Footprint 76 Peak Height 10 yr Warranty 8mm Twin-Wall Panels

Why the MONT Outperforms

Most aluminum greenhouses use imported frame stock that meets the minimum specification for the price point. The MONT uses U.S.-grade extruded aluminum with over 55 lbs more aluminum than a typical import greenhouse of the same size. That additional material is not cosmetic — it translates directly into higher snow load capacity, greater wind resistance, and a frame that does not flex or distort under structural stress over years of outdoor exposure. The black electrostatic paint finish is lead-free and bonds at the molecular level to prevent peeling, chipping, or corrosion.

The 8mm twin-wall polycarbonate panels function like double-pane glass — trapping a layer of air between two walls to insulate the interior against temperature extremes while blocking harmful UV rays that degrade plants and the structure over time. In practical terms, this means lower energy consumption for supplemental heating in winter, reduced heat buildup in summer, and a growing environment that stays stable through conditions that would make a single-wall greenhouse impractical.

The 7 foot 6 inch peak height provides the air volume needed for proper heat displacement — heat rises and stratifies away from plants rather than sitting at root level — and gives tall gardeners genuine standing headroom throughout the full interior footprint. The automatic roof vent opener responds to temperature, opening and closing without requiring manual intervention or a power connection.


What the Premium Package Includes

Everything in the base greenhouse, plus: ●  Commercial workbenches — one side of the interior fitted with durable workbenches for potting, propagating, and daily gardening tasks
●  Interior shade system — protects plants from peak summer sun intensity without blocking beneficial light; adjustable to seasonal growing conditions
●  Programmable watering system — set irrigation schedules precisely for each growing zone; reduces manual watering labor and improves plant consistency
●  Built-in greenhouse sink — the only greenhouse on the market with an integrated sink; eliminates the need to carry water in or take tools outside for cleaning

Structure & Features

Heavy-Duty Aluminum Frame

U.S.-grade extruded aluminum with 55+ lbs more material than typical imports. Black electrostatic paint is lead-free and permanently bonded to prevent peeling or corrosion. Built for heavy snow loads and sustained wind resistance.

8mm Twin-Wall Polycarbonate Panels

Double-wall construction traps an insulating air layer between panels — equivalent to double-pane glazing. UV-stable to prevent yellowing and degradation. Keeps interior temperatures stable and reduces supplemental heating costs in colder months.

Large Lockable Double Doors

Hinged double doors measuring approximately 6 ft high × 4.5 ft wide — wide enough to bring in wheelbarrows, large containers, and equipment. Lockable for security. The wide opening also serves as the primary ventilation source in warm months.

Automatic Roof Vent Opener

Temperature-activated roof vent opens automatically when interior heat rises and closes as it cools — no power connection or manual adjustment required. Passive ventilation that protects plants without requiring daily attention.

Integrated Base & Dual Rainwater Gutters

Built-in base frame anchors the structure and provides the foundation for expansion kits. Dual rainwater gutters channel runoff away from the base and can be directed to a collection barrel for water reuse in irrigation.

Expandable with 4′ Extension Kits

Optional 4-foot extension kits add growing length as your needs develop — extending the 12-foot footprint without requiring a new structure. The base system is designed to accept extensions without structural modification.

7′6″ Peak Height — Full Standing Headroom

The 7-foot 6-inch peak gives tall gardeners comfortable working headroom across the full interior. The volume also provides critical air mass for heat displacement — rising heat stratifies away from plants rather than accumulating at growing level.

10-Year Warranty — Strongest in Class

10-year coverage on both frame and panels — the strongest warranty available in the residential greenhouse category. Covers structural integrity and panel performance against normal outdoor exposure and use.


Product Specifications

Dimensions 8′ W × 12′ L × 7′6″ H  (101″ × 149.75″ × 90″)
Frame U.S.-grade extruded aluminum — black electrostatic paint, 0% lead
Panels 8mm twin-wall polycarbonate — UV stable
Doors Hinged lockable double doors — approx. 6′ H × 4.5′ W
Ventilation Automatic temperature-activated roof vent opener (no power required)
Water Management Integrated dual rainwater gutter system
Expandability Optional 4′ extension kits available
Premium Inclusions Commercial workbenches, interior shade system, programmable watering system, built-in sink
Warranty 10 years on frame and panels — strongest in the industry
Country of Origin Made in the USA
What’s Included All hardware, illustrated assembly manual, screwdriver, wrench
Assembly Full weekend with two people — ground prep not included

Buyer’s Notes — What to Know Before You Order

Ground preparation: The MONT requires a level, stable surface. Ground prep — concrete pad, gravel base, or pavers — is not included in the kit and must be completed before assembly begins. A level foundation is essential for the structure to align and seal correctly.

Assembly time: Plan for a full weekend with two people. The illustrated manual and included tools (screwdriver and wrench) cover the full build. No additional tools are required for the base assembly.

Permits: Depending on your municipality, a structure of this size may require a building permit. Check with your local planning department before installation. The 10-year warranty documentation can support permitting applications where structural certification is requested.

Expansion: If you anticipate needing more space, plan the initial siting to allow for 4-foot extension kits to be added at either end. Extensions are significantly easier to add during the initial installation phase than after the structure is anchored.

“55 lbs more aluminum, 8mm twin-wall panels, 10-year warranty — the only greenhouse you should have to buy.”

Trade & Commercial Orders

Available for commercial growers, landscape professionals & residential projects throughout Southern California.

Trade pricing, volume quotes, and white-glove delivery coordination available. Contact our team for lead times and project pricing.

Serving  •  Los Angeles  •  Orange County  •  Inland Empire  •  Ventura County
White-glove delivery available throughout Southern California

Ground preparation is the buyer’s responsibility and is not included in the kit. Check local building codes and permit requirements before installation. Actual assembly time will vary based on experience level and site conditions. 10-year warranty covers frame and panels under normal outdoor use; contact MONT for full warranty terms and conditions. Extension kits sold separately.