1. Safety Information
Please read and understand all safety instructions before assembly and use of your HOWE Polycarbonate Greenhouse. Failure to follow these instructions may result in injury or damage to the product.
- Always follow the user-friendly manual for correct assembly and anchoring.
- Ensure proper ventilation by opening all 4 vent windows.
- Be aware of potential UV exposure from the polycarbonate panels and take necessary precautions.
- Keep sharp tools away from children and pets during assembly.
- Ensure the greenhouse is securely anchored to the ground to withstand wind and snow loads.
2. Product Overview
The HOWE 10x14x8.4 FT Polycarbonate Greenhouse is designed to provide a spacious and protected environment for your plants. It features a sturdy aluminum frame and twin-wall polycarbonate panels for durability and insulation.
Key Features:
- Large & Convenient: This greenhouse offers 5.6ft high walls and a spacious 782 Cu.Ft. interior. It includes a low threshold and double hinged doors for easy access.
- All Seasons Planting: Twin-wall polycarbonate panels provide a warm planting environment, allowing plants to thrive even in colder months with 90% light transmittance.
- Ventilation and Drainage: Equipped with 4 vent windows for air circulation, temperature, and humidity regulation. Features drainage holes and attached pipes to collect and drain water.
- Sturdy Framework: Includes aluminum frames, reinforcements, and triangular brackets for enhanced stability. Secured with expansion screws and ground anchors. Wind Rating: 70mph; Snow Load: 30psf.

Figure 2.1: Exterior view of the greenhouse, highlighting its dimensions and spacious design.

Figure 2.2: Interior space of the greenhouse, demonstrating its large capacity for various uses.
3. Specifications
| Feature | Detail |
|---|---|
| Model Number | YPG206 |
| Product Dimensions (L x W x H) | 165.3" x 118.9" x 100.8" (13.8 ft x 9.9 ft x 8.4 ft) |
| Color | Black |
| Cover Material | Polycarbonate (PC) |
| Frame Material | Aluminum |
| Nominal Wall Thickness | 6 mm |
| Number of Doors | 2 (Swing Door style) |
| Number of Vents | 4 |
| Indoor/Outdoor Usage | Outdoor |
| Wind Rating | 70 mph |
| Snow Load | 30 psf |

Figure 3.1: Detailed dimensions of the greenhouse structure.
4. Assembly and Setup
The HOWE Polycarbonate Greenhouse is designed for efficient assembly. A detailed, user-friendly manual with clear steps and all necessary tools is included to ensure correct backyard greenhouse assembly. It is recommended that 3 DIY enthusiasts can erect the greenhouse in approximately 10 hours.
Key Assembly Steps:
- Site Preparation: Choose a level, stable location for your greenhouse. Ensure adequate drainage and clear any debris.
- Base Assembly: Assemble the base frame according to the provided manual. Ensure all connections are secure.
- Frame Construction: Erect the aluminum frame, paying close attention to the triangular support structures for stability.
- Panel Installation: Slide the polycarbonate panels into the frame channels. Ensure they are correctly oriented and secured.
- Door and Window Installation: Install the double hinged doors and the 4 vent windows. Test their operation.
- Anchoring: Securely anchor the greenhouse to the ground using the provided expansion screws and ground anchors. This is crucial for stability against wind and snow.

Figure 4.1: Key structural and functional components of the greenhouse.

Figure 4.2: Detail of the triangular structure for enhanced stability.
Installation Video:
Video 4.1: Official Greenhouse Installation Guide. This video provides a visual walkthrough of the assembly process, demonstrating key steps for setting up your HOWE greenhouse.
5. Operating Instructions
Ventilation:
The greenhouse is equipped with 4 vent windows to manage internal temperature and humidity. Open the windows during warm periods to allow for air circulation and prevent overheating. Close them during colder weather or strong winds to retain heat.
All-Season Use:
The twin-wall polycarbonate panels provide insulation, making the greenhouse suitable for all-season planting. In winter, the panels help maintain a warmer environment for your plants. Consider additional heating solutions for extremely cold climates.

Figure 5.1: Greenhouse in a winter setting, illustrating its suitability for all-season use.
Water Management:
The built-in gutter system and drainage holes are designed to collect and divert rainwater away from the greenhouse base. Regularly check that the drainage pipes are clear of debris to ensure efficient water runoff.
Access:
The double hinged doors provide wide access. Ensure the doors are securely closed when not in use, especially during windy conditions, to protect the interior environment.
6. Maintenance
- Cleaning Panels: Clean polycarbonate panels periodically with mild soap and water using a soft cloth or sponge. Avoid abrasive cleaners or brushes that could scratch the surface. Rinse thoroughly with clean water.
- Frame Inspection: Regularly inspect the aluminum frame for any signs of damage, loose bolts, or corrosion. Tighten any loose fasteners.
- Vent and Door Checks: Ensure vent windows and doors open and close smoothly. Lubricate hinges if necessary.
- Drainage System: Keep gutters and drainage pipes clear of leaves, dirt, and other debris to prevent water buildup.
- Anchoring: Periodically check the ground anchors and expansion screws to ensure the greenhouse remains securely fastened, especially after strong winds or heavy rainfall.
7. Troubleshooting
Common Issues and Solutions:
- Water Leaks:
- Check all panel seals and ensure they are properly seated.
- Inspect the roof and wall panels for cracks or damage.
- Ensure the gutter system is clear and correctly installed.
- Poor Ventilation/Overheating:
- Ensure all 4 vent windows are fully open during warm periods.
- Consider adding additional shading or a fan if temperatures remain too high.
- Greenhouse Instability:
- Verify that all frame connections are tight.
- Confirm that the greenhouse is properly anchored to the ground using all provided hardware.
- Check for any damage to the frame or base.
- Difficulty Opening/Closing Doors or Vents:
- Check for obstructions in the tracks or hinges.
- Clean and lubricate hinges or sliding mechanisms.
- Ensure the frame is level and square.
8. Warranty and Support
Warranty Information:
For specific warranty details regarding your HOWE Polycarbonate Greenhouse, please refer to the warranty card included with your product or contact HOWE customer service directly. Keep your proof of purchase for warranty claims.
Customer Support:
If you have any questions, require assistance with assembly, or need to report a missing or damaged part, please contact HOWE customer support. Contact information can typically be found in your product packaging or on the official HOWE website.