Exaco | Riga XL 6 Greenhouse

RIGA XL 6 Greenhouse – Year-Round Growing Powerhouse

The RIGA XL 6 Greenhouse is the ultimate solution for serious gardeners who demand strength, durability, and year-round performance. Designed and engineered in Germany by Hoklartherm, this premium greenhouse is built to withstand harsh winters, heavy snow, and high winds while offering superior insulation to keep your plants thriving even in challenging climates.

Unlike lightweight “season extenders” with thin glazing, the RIGA XL features 16mm triple-wall polycarbonate panels, providing unmatched insulation and durability. Its tall peak height and spacious width make it the largest model in the RIGA line—ideal for growing vegetables, herbs, and flowers in winter or housing large, tall plants like tomatoes and beans in the summer. With exceptional ventilation, heavy-duty barn doors, and multiple roof vents, this greenhouse offers an ideal growing environment all year long.

Whether you’re a hobby grower or a professional, the RIGA XL blends German engineering, heavy-duty construction, and upscale design to give you a greenhouse that performs as beautifully as it looks.

Don't see the size you need? Give us a call for availability in additional sizes.

FREE SHIPPING

Regular Shipping Time
10–14 weeks, including manufacturing, packaging, and shipping. All shipments include curbside delivery. Please have 2–3 people available to unload the greenhouse crate, and ensure the delivery truck can access your property. For any questions, contact our sales team for assistance.

• German-Made Quality – Built by Hoklartherm, one of Europe’s leading greenhouse manufacturers with 28+ years of experience.

• Exceptional Insulation – 16mm triple-wall polycarbonate glazing provides superior thermal performance (R-value 3.0) for year-round growing.

• Heavy-Duty Frame – 13-gauge aluminum construction withstands heavy snow loads, high winds, and extreme weather conditions.

• Superior Ventilation – Multiple roof vents with automatic openers plus dual barn-style doors allow excellent airflow and temperature control.

• Spacious & Functional – At nearly 10 feet tall, the RIGA XL offers generous headroom and workspace, with optional shelving and accessory kits for added versatility.

• Winter Gardening Ready – Specifically engineered for growing fresh vegetables, herbs, and flowers through the coldest months.

• Upscale Aesthetic – Sleek European design fits beautifully into any garden or backyard setting.

• Optional Accessories – Add shelving, climate control systems, misting kits, foundation frames, and more to customize your setup.

Why Choose the RIGA XL?

• True European Greenhouse – Built for year-round use, not just as a seasonal shelter.

• Energy Efficient – Superior insulation reduces heating costs compared to thinner greenhouses.

• Flexible Setup – Optional drop kits, shelving, fans, heaters, and light systems available.

• Resilient in Harsh Climates – Curved sidewalls allow snow to slide off and resist heavy buildup.

• Long-Term Investment – Stronger, more durable, and more insulated than most consumer brands, designed to last for decades.

Perfect For

• Year-round vegetable and herb gardening

• Growing flowers and tropical plants in cold climates

• Commercial or hobby growers who want professional-grade performance

• Gardeners in snowy, windy, or extreme weather regions

Construction:

• Glazing: 16mm triple-wall polycarbonate (side walls & gable ends)

• Frame: 13-gauge aluminum extrusions

• Warranty: 15 years on frame, 10 years on polycarbonate

• Doors: Two Dutch barn-style doors with keyed locks (37.5" W x 74" H)

• Roof Windows: Automatic openers included, multiple per size

Available Sizes:

• RIGA XL 5 – 14' x 16'5" | 231 sq. ft. | 4 roof vents

• RIGA XL 6 – 14' x 19'10" | 280 sq. ft. | 4 roof vents

• RIGA XL 7 – 14' x 23' | 322 sq. ft. | 6 roof vents

• RIGA XL 8 – 14' x 26'3" | 368 sq. ft. | 6 roof vents

• RIGA XL 9 – 14' x 29'6" | 413 sq. ft. | 8 roof vents

Assembly:

• Recommended team: 2–3 people

• Estimated build time: 2 days

Elevate your growing potential with the RIGA XL Greenhouse – the strongest, most insulated greenhouse in its class.

Order today and extend your gardening season to all four seasons.

Read Before Installation
Carefully review the assembly manual before starting to ensure a smooth installation and avoid mistakes.

Preparation of Components

• Sort all parts according to the installation manual

• Place components around the greenhouse perimeter in installation sequence

Watch Our Assembly Video
For extra guidance, view our installation videos demonstrating general assembly principles.

Always follow the specific installation manual included with your product for accurate instructions.

Installation Manuals & Packing Info

• RIGA XL Greenhouse Assembly Instructions

• RIGA XL Greenhouse Assembly Instructions Addendum

• RIGA XL Greenhouse Foundation Frame Info

• RIGA XL Greenhouse Owner’s Reference Manual

• RIGA XL Greenhouse Parts List

• RIGA XL Greenhouse Flyer

• RIGA Greenhouse Warranty Information

Intro RIGA XL Greenhouse

RIGA XL Greenhouse Assembly

RIGA XL Drop Door Installation Guide

RIGA XL Automatic Window Opener Assembly

These are general recommendations for maintaining your RIGA XL Greenhouse. Proper care is essential for longevity and safe operation. Always follow the manufacturer’s instructions and consult a professional for electrical or structural issues.

1. Cleaning and Maintenance

• Regular Cleaning: Clean polycarbonate panels regularly with a mild, non-abrasive soap and soft cloth to remove dirt and debris while protecting the UV coating.

• Avoid Harsh Chemicals: Do not use abrasive cleaners or harsh chemicals, as they can damage the panels and UV protection.

2. Frame and Structure Care

• Inspect the Frame: Check periodically for wear or damage. The aluminum structure resists corrosion, but regular inspections ensure long-lasting durability.

• Lubricate Moving Parts: Keep doors, windows, and other moving parts lubricated for smooth operation.

3. Snow and Weather Management

• Clear Snow and Ice: Remove excess snow or ice buildup during heavy storms to prevent structural damage.

• Prepare for Weather Changes: Monitor the greenhouse during harsh weather to ensure stability and protect your plants.

4. Climate Control

• Monitor Temperature and Humidity: Keep an eye on internal conditions. Proper ventilation and heating help maintain a suitable growing environment.

• Adjust as Needed: Modify ventilation and heating based on seasonal changes to optimize plant health.

5. Foundation and Setup Care

• Ensure Stability: Periodically check that the greenhouse is secure and anchored properly.

• Proper Setup: Always follow manufacturer guidelines during assembly or relocation for a balanced and stable structure.

6. General Tips for Longevity

• Check Seals and Gaskets: Inspect seals and gaskets regularly and repair or replace damaged parts to maintain insulation and weatherproofing.

• Avoid Overloading: Use appropriate shelving and accessories, and avoid placing excessive weight on shelves or structural components.

By following these care and maintenance guidelines, you will maximize the life and performance of your RIGA XL Greenhouse, ensuring a productive, efficient growing space year-round.

RIGA XL Pro Accessory Kit

Take your Riga XL Greenhouse to the next level with this comprehensive accessory kit, designed to maximize plant growth, organization, and overall greenhouse performance.

What’s Included:

• Top & Bottom Shelves – Wide bottom and narrower top shelves on each side provide ample space for plants at a comfortable height, improving organization and workflow. Shelves are built to hold heavy loads—the bottom shelf can even support a 160 lb person.

• LED Grow Lights (3 Sets) – Professional-grade lighting to give your plants the perfect spectrum for healthy growth.

• Ventilation & Climate Control

  • 24" intake shutter vent

  • 20" exhaust fan

  • Thermostat to control vent and fan automatically

• Heating – 17,500 BTU 220V heater to maintain ideal temperatures year-round.

• Seed Trays – 5 heavy-duty trays for easy planting and propagation.

• Hooks & Supports – 10 stainless steel hooks and 10 heavy-duty plastic hooks for trellising and plant support.

• Assembly Facilitation Kit – Includes 25′ metric tape measure, 10 mm socket and open wrenches, 2 x 20′ J-hook ratchet straps, window restraint cables, 2 tubes Boss 399 silicone caulk, and a permanent marker for smooth assembly.

6” High Foundation Frame
The factory-recommended anchoring system for Riga XL Greenhouses. No concrete or wood footing required—simply place the frame in a trench, build the greenhouse on top, and backfill with soil. Provides a secure, wind-resistant foundation.

Reinforcement Kit
Enhances wind resistance up to 135 MPH and supports a snow load of up to 64 lbs. per sq. ft., keeping your greenhouse safe in extreme conditions.

Door Extension Kit
Raises your greenhouse by 20" when installed on a stem wall. Door opening should be 40" wide.

Top & Bottom Shelves
Durable shelving set featuring a wide bottom shelf and narrower top shelf on each side. Provides comfortable working height for plants, improves organization, and supports heavy pots and gardening equipment for a strong, stable setup.

Light My Shed 4 Lighting
Solar-powered LED lighting system with an exterior-mounted solar panel and interior LED housing. Delivers 250 lumens of bright 6000K light for up to 4 hours, with a 9-foot wire and rechargeable Ni-MH battery for flexible, reliable performance.

Wheelbarrow Access Ramp
Smooth, stable entry point into your greenhouse for easy movement of wheelbarrows, carts, and heavy equipment, while protecting your frame and foundation.