Your Personal Oasis With The Exaco Modern M23 Greenhouse
Looking for a greenhouse that's a bit different? The Modern Greenhouse ditches the traditional English look for a sleek, one-sided sloping roof. This not only gives it a modern vibe but also adds an extra layer of glass for more.
Whether you've been gardening forever or are just starting out, this greenhouse is a great fit. It's built to last, so it's a smart buy that will make your backyard even better. The extra sunlight and flexible design make it the perfect place for your plants to thrive.

Enjoy Fresh Produce Daily In Your Modern Greenhouse
- Year-Round Growing: Extend your growing season and enjoy fresh produce all year long.
- Sleek Design: A modern sloping roof maximizes sunlight and ventilation, making it perfect for year-round gardening.
- Superior Strength: extra-thick aluminum profiles and stainless steel hardware for a long-lasting structure.
- Weatherproof: 4mm tempered glass withstands extreme weather and provides superior insulation.
- Simple Assembly: Pre-cut and pre-drilled parts, plus an included foundation frame, make setup a breeze.
- Beautiful Look: Large single-piece glass panels create a clean, modern aesthetic.
- Pest and Draft Protection: Heavy-duty rubber weather seals keep unwanted guests out.
- Safety Tested: Tempered glass is TUV and GS tested for your peace of mind.
Seize this fantastic deal and enhance your garden with a resilient, stylish, and easy-to-assemble greenhouse. Order yours today!

What's Included in the Box?

1 Set of Double Hinged Doors

2 Roof Vents, 2 Push Out Side Windows, 1 Louvre Window

1 Automatic + 1 Spindle (Roof), 1 Automatic (Louvre)

Gutters with Downspout
Manuals of Modern M23 Sloping Roof Greenhouse
Specs of the M23 Sloping Roof Modern Greenhouse
Size | 7ft 9in x 10ft 2in x 8'10in |
Sidewall Height (shorter side) | 6'8" |
Peak Height (Taller Side) | 8' 10" |
Area | 79 sq. ft. |
Color | Black (RAL9005) |
Glazing | 4 mm tempered glass, 7 times stronger than garden glass, TUV & GS tested |
Windows Installation | Substantial rubber seals for better insulation, not metal clips |
Glass Configuration | Single sheets, no overlapping smaller sections |
Included Features | Gutters with downspouts |
Foundation Requirement | Perimeter foundation; corners recommended to anchor in concrete |
Additional Requirements (if applicable) | Drop door kit for stem wall installation, glass panel for door gap |
Assembly Recommendation | Use scaffolding during assembly |
Brand | Janssens |
Warranty | 15 Year Limited Warranty |
Go Beyond the Basics, Accessories to Help Your Garden Thrive
Maintain the perfect growing environment year-round with climate control options like shade curtains, fans, and heaters. Maximize your growing space and organization with shelves, hooks, and specialized grow lights. Enhance your greenhouse experience with practical features such as wheelbarrow ramps and automatic window openers.
Grow More with Organized Shelving

Top Shelf
This sturdy top shelf adds space to your greenhouse so you can store tools, pots, or show off your prize-winning blooms. Available in dark green or black, it's the perfect way to make your greenhouse more functional and stylish, measuring 10' L x 4" W

Bottom Shelf (Seed Tray)
This shelf with it's size of 10' L x 20" W x 4" D is perfect for starting seeds, propagating cuttings, or organizing small plants. Corrugated plastic bottom provide ample space and drainage. Choose from classic dark green or sleek black to match your greenhouse aesthetic.

Slat Shelving - 2 & 5 Slats
Expand your growing space with our affordable slatted shelving, designed to fit all Victorian Greenhouses. Choose from a 2-slat (9"W x 59"L) or 5-slat (21"W x 59"L) configuration, both available in black or dark green.
Customize Door for Effortless Access

Sliding Doors - Single or Double Configuration
Choose the perfect entryway for your greenhouse with a single or double door in a matching black or green finish. Both sizes offer a low threshold option for easy access.

Hinged Double Doors Configuration
Create a welcoming entry to your greenhouse with a double hinged door featuring a low threshold for easy access. Available in black or green to complement your greenhouse's style, these doors come with locks for added security.

Drop Door Kit for Hinged Doors & Sliding Doors
Allows Modern greenhouse on a 20"-36" wall (24" recommended). Glass panels not included; purchase locally. Extra polycarbonate available for cutting. Use "Lowered Threshold" for dropped doors. Provide exact wall height for accurate cutting.

Low Threshold for Sliding Door
Low threshold entry option kit for double or single sliding doors. Available in colors black and dark green. Cut to fit.
Easily Manage Temperature in Your Greenhouse with Windows and Vents Upgrades

Additional Louvre Window
Features 11 glass panels and is manually operated to control airflow and temperature in your Modern greenhouse. An automatic opener is also available for added convenience.

Louvre Window Fly Screen
Easily attach this factory-assembled fly screen to the outside of your louvered windows with a simple clip. No tools required! Available in green or black.

Louvre Window Cover
During the winter months, the louvered window is covered by a 40" x 28" piece of 4mm thick clear Lexan, which fits snugly in place without any additional fasteners or attachments.

Automatic Louvre Windows Opener
A black paraffin-filled tube opens and closes the louvre window at 72?F, opening up to 14 inches and closing with a heavy spring as the temperature drops.

Push Open Side Windows
Increase ventilation in your greenhouse with a push-open side window, hinged at the top for easy operation. Available in dark green or black, it includes an extra glass panel and measures 40 1?2? x 30 1?2? to fit seamlessly into your side wall.

Push Out Side Window Fly Screen
Easily install this factory-assembled fly screen inside your push-out window. Available in green or black, it features a brush seal opening for the window device.

Additional Roof Vents
Every Modern greenhouse includes at least one roof vent for ventilation. You can add more vents to customize your greenhouse climate. All vents are available in dark green or black and measure 30 1?2? x 32 1?2?.

Roof Vent Fly Screen
Factory-assembled fly screen for roof vents, easily installs underneath the vent window and comes with brush seals that allow compatibility with automatic or manual openers. Choose from green or black frames.

Automatic Roof Window Opener
Automatically regulate the temperature in your Modern greenhouse with this black paraffin-filled tube opener. No electricity needed, it expands at 72?F to open the window up to 14 inches and closes with a heavy spring when it cools.

Manual Roof Window Opener
Manually open your Modern greenhouse roof window with this stainless steel threaded screw opener. A long handle is required for operation (not included).
Perfect Climate with Janssens Modern Greenhouse Add-Ons for Consistent Growing

Retractable Roll-Up Shade Curtain
The retractable aluminum weave curtains, suitable for both roofs and side walls, reflect sunlight for enhanced cooling and extend up to 8 feet, adapting to weather conditions.

Shade Curtains
This cream shade curtain is tailor-made for your Modern Greenhouse. It provides full coverage and easy installation with built-in loops and included hardware. Durable and elegant, it protects your plants while enhancing your greenhouse's look.

Bio Green Palma Greenhouse Heater
This lightweight, portable heater delivers 1500 watts (5118 BTU) of power, making it ideal for smaller greenhouses. It features a built-in thermostat for efficient temperature control (0-90?F) and can be paired with the optional Thermo2 digital thermostat for even greater precision.

Bio Green Thermo2 Digital Thermostat
This digital thermostat offers precise control (-58?F to 108?F) with Fahrenheit/Celsius display and summer/winter modes. It supports up to 1500W/5200 BTU heaters and has a 9.1ft sensor. Pair with a Palma heater for optimal greenhouse climate.

Exaco Solar Exhaust Fan System
Solar-powered greenhouse exhaust fan kit with 50-watt solar panel, 16" CE-approved fan, thermostat, and 20-foot cord. No batteries required. Lifetime warranty on the brushless motor. 31 lbs total weight.

Dayton Big Red Heater
This greenhouse heater covers up to 600 sq. ft., with temperature control (37-113?F) and overheating protection. It has a 5600W output (19,110/14,335 BTU at 240V/208V) and is UL/C-UL certified. Requires a NEMA# 6-30R outlet for the included NEMA# 6-30P cord.

Exhaust Vent with Fan
This plug-and-play exhaust fan and vent kit comes with a 110-volt cord and plug, available in 12", 16", or 20" sizes. An optional thermostat with an 8' cord allows for automatic temperature control.

Intake Shutter Vent
Automated aluminum louver greenhouse vent for temperature and humidity control. Available in 16", 20", and 24" sizes.
Transform Your Greenhouse into an Oasis with These Must-Have Additions

Solar Powered Light
Solar-powered LED light designed for nighttime greenhouse illumination.

LED Grow Light
This slim, 4-foot LED grow light bar delivers powerful, evenly distributed F3 spectrum light, ideal for plant growth. Choose with or without a power cord and connect up to 15 units for larger areas. Its 12 waterproof LEDs and durable construction ensure long-lasting performance, backed by a 5-year warranty.

Scroll Supports
This set of three dark green scroll supports (two shoulder, one roof), designed specifically for units 20 feet or longer. These stylish additions provide extra reinforcement while elevating your greenhouse's visual appeal. Please note that curtains cannot be drawn past the scroll supports.

Wheelbarrow Ramp
Made from durable solid rubber, its 49cm width, 31cm length, and 10cm height provide a smooth transition for easy loading and unloading.

Stainless Steel Plant Hooks
This set of 5 hooks has a T-bolt head that fits into greenhouse frame channels without modifications. The adjustable design allows you to customize the hanging height.

Scroll Supports
Stainless steel hammerhead bolts and nuts for aluminum frame channels. Set includes 20 bolts and nuts, 6mm heads, in 12mm or 15mm lengths.
Introducing the Modern Greenhouse
Modern Greenhouse Assembly Guide Videos
WASHING INSTRUCTIONS:
Machine wash separately in cold water on a gentle cycle. Tumble dry separately on low heat. Add QE Home Wool Dryer Balls to reduce wrinkles and increases drying efficiency. Touch up with a low heat iron as needed. Do not bleach or dry clean.