1. Introduction
Thank you for purchasing the Outsunny 6' x 4' Polycarbonate Greenhouse. This manual provides essential information for the safe assembly, operation, maintenance, and troubleshooting of your new greenhouse. Please read these instructions thoroughly before beginning assembly and retain them for future reference.
This greenhouse is designed to provide a protected environment for plants, shielding them from cold, wind, rain, and animals, while allowing approximately 90% light transmission and UV protection. It features an aluminum frame, polycarbonate panels, an adjustable roof vent, and rain gutters.

Image 1.1: The Outsunny 6' x 4' Polycarbonate Greenhouse installed in a garden.
2. Safety Information
- Read All Instructions: Before assembly and use, carefully read and understand all instructions and warnings in this manual.
- Adult Assembly Required: Assembly should be performed by at least two adults. Some components may be heavy or awkward to handle.
- Wear Protective Gear: Always wear appropriate safety gear, such as gloves and eye protection, during assembly to prevent injury.
- Secure to Ground: The greenhouse must be securely anchored to a level, stable base to prevent damage from wind or other weather conditions. This greenhouse is not designed to withstand extreme weather such as heavy snow or strong winds without additional reinforcement.
- Check Components: Ensure all parts are present and undamaged before beginning assembly. Do not use damaged components.
- Ventilation: Ensure adequate ventilation, especially during hot weather, to prevent overheating inside the greenhouse.
- No Climbing: Do not climb on or lean against the greenhouse structure.
- Children and Pets: Keep children and pets away from the assembly area.
3. Package Contents
Please refer to the included parts list diagram and inventory sheet to ensure all components are present before starting assembly. If any parts are missing or damaged, contact customer support immediately.
Typical components include:
- Aluminum frame profiles
- Polycarbonate panels (walls and roof)
- Door assembly
- Roof vent assembly
- Rain gutter components
- Fasteners and hardware
- Instruction manual
4. Setup and Assembly
Careful assembly is crucial for the stability and longevity of your greenhouse. It is highly recommended that two people perform the assembly.
4.1 Site Preparation
- Choose a Level Location: Select a flat, level area for installation. An uneven base can compromise the structural integrity and lead to difficulties during assembly.
- Clear the Area: Remove any debris, rocks, or vegetation from the chosen site.
- Consider Drainage: Ensure the site has good drainage to prevent water accumulation around the base.
4.2 Base Assembly
- Assemble the base frame according to the diagrams in your specific instruction booklet.
- Ensure the base is square and level before proceeding. This is a critical step for overall stability.
- Anchoring: Securely anchor the base to the ground using appropriate methods for your soil type (e.g., concrete anchors, ground stakes, or a treated lumber foundation).
4.3 Frame and Panel Installation
- Follow the step-by-step diagrams provided in your manual for assembling the aluminum frame.
- Carefully slide the polycarbonate panels into the designated channels of the aluminum frame. Ensure the UV-protected side of the panels faces outwards.
- Panel Sealing: It is recommended to caulk around the edges of the panels with a suitable sealant to improve insulation and prevent drafts, as noted by some users.

Image 4.1: Detail of the polycarbonate panel and aluminum alloy frame construction.
4.4 Door and Vent Installation
- Install the hinged door assembly, ensuring it opens and closes smoothly.
- Attach the adjustable roof vent according to the instructions.

Image 4.2: Dimensional diagram of the greenhouse.
5. Operating Instructions
5.1 Door Operation
The greenhouse features a hinged door for easy access. Ensure the door is securely closed when not in use to maintain internal temperature and protect plants.

Image 5.1: The hinged door with a lockable design for convenient access.
5.2 Roof Vent
The adjustable roof vent allows for control over internal humidity and temperature. Open the vent to release excess heat and moisture, and close it to retain warmth. Adjust the opening angle as needed based on external weather conditions and internal plant requirements.

Image 5.2: The top window provides good ventilation when needed.
5.3 Rain Gutter System
The integrated rain gutters collect natural rainwater. You can attach a hose to the gutter outlet to direct collected water into a barrel or other storage container for later use, promoting water conservation.

Image 5.3: The rain gutter system channels water from the roof.
6. Maintenance
- Regular Cleaning: Clean the polycarbonate panels periodically with mild soap and water to remove dirt and algae, ensuring maximum light transmission. Avoid abrasive cleaners or tools that could scratch the panels.
- Check Fasteners: Periodically inspect all bolts, screws, and connections to ensure they are tight. Re-tighten as necessary.
- Panel Integrity: Check panels for any cracks or damage. Replace damaged panels promptly to maintain insulation and protection.
- Sealant Inspection: Inspect any caulking or sealants around panels and joints. Reapply if cracks or gaps appear.
- Gutter Maintenance: Keep rain gutters clear of leaves and debris to ensure proper water flow.
- Winter Preparation: In areas with heavy snowfall, consider removing snow accumulation from the roof to prevent structural stress. The greenhouse is not designed for heavy snow loads.
7. Troubleshooting
7.1 Greenhouse Instability
- Issue: Greenhouse feels wobbly or unstable.
- Solution: Ensure the base is perfectly level and securely anchored to the ground. Check all frame connections and tighten any loose fasteners. Additional bracing or a more robust foundation may be required in windy areas.
7.2 Panels Blowing Out or Leaking
- Issue: Polycarbonate panels are loose, blowing out, or water is leaking through gaps.
- Solution: Re-seat panels firmly into their channels. Apply silicone sealant or caulk around the perimeter of each panel where it meets the frame to create a tighter seal and prevent movement or leaks.
7.3 Poor Ventilation/Overheating
- Issue: Temperature inside the greenhouse is too high, or excessive condensation is present.
- Solution: Ensure the roof vent is open. Consider adding additional ventilation options, such as an automatic vent opener or a small fan, especially during peak summer months.
7.4 Roof Vent Not Staying Closed/Open
- Issue: The roof vent does not stay in the desired position.
- Solution: Check the adjustment mechanism for proper engagement. In windy conditions, a small weight or latch may be needed to keep the vent closed, or a prop to keep it open.
8. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions (L x W x H) | 190L x 122W x 195H Centimetres (6' x 4' x 6.4') |
| Item Weight | 22.09 kg (48.7 Pounds) |
| Frame Material | Aluminum |
| Cover Material | Polycarbonate (PC) |
| Nominal Wall Thickness | 0.2 Inches (4mm) |
| Number of Doors | 1 (Hinged) |
| Number of Vents | 1 (Adjustable Roof Vent) |
| Color | Silver |
| Model Number | 845-243V03 |
| Manufacturer | Aosom Canada |
| Country of Origin | China |
9. Warranty and Support
9.1 Warranty Information
This Outsunny greenhouse comes with a 90-day warranty against manufacturer defects. Please retain your proof of purchase for any warranty claims. The warranty does not cover damage due to improper assembly, extreme weather conditions, misuse, or normal wear and tear.
9.2 Customer Support
For assistance with assembly, missing parts, or warranty inquiries, please contact Aosom Canada customer support:
- Phone: 1-416-792-6088
- Place of Business: Markham, Ontario, CA
Please have your model number (845-243V03) and purchase details ready when contacting support.
10. Product Videos
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