Product Overview
The AECOJOY 20' x 12' Wall-Mounted Hard Top Lean-to Gazebo Pergola is designed to enhance your outdoor living space, providing robust protection and a stylish aesthetic. This gazebo is engineered for durability, capable of withstanding significant wind and snow loads when properly installed.

Figure 1: AECOJOY 20' x 12' Gazebo installed on a patio, showcasing its large coverage and integration with outdoor furniture.
Its hardtop design features flexible panels that effectively disperse impact from severe weather, offering superior protection compared to traditional rigid panels. The lean-to structure is ideal for mounting against a wall, providing stability and maximizing usable space on your patio, deck, or backyard.

Figure 2: Detail of the flexible panels, highlighting their anti-UV, fire-resistant, waterproof, smooth drainage, and windproof (40-70 mph) features. The heavy-duty frame ensures high load-bearing capacity.
Setup and Installation
The AECOJOY Gazebo is designed for straightforward assembly, though it requires careful attention to detail and proper alignment. It is recommended to have at least two people for installation.
Important Considerations Before Starting:
- The gazebo is shipped in multiple parcels (typically 3), which may arrive at different times. Ensure all packages have arrived before beginning assembly.
- For maximum stability, the gazebo must be securely mounted against a wall and anchored to the ground.
- During assembly, refrain from fully tightening screws until all components are aligned and all screws for a section are inserted. This allows for easier adjustment and proper fit.
- The roof panels have a UV-resistant side. Ensure this side faces upwards during installation. There will be a sticker indicating the UV side; remove it just before final placement.
Installation Steps:
- Unpack and Verify Components: Carefully unpack all boxes and lay out components. Cross-reference with the parts list provided in your manual to ensure all pieces are present and undamaged.
- Assemble Pillars and Beams: Follow the detailed instructions for assembling the main pillars and connecting beams. Pay close attention to the orientation of parts, especially the screw holes, to ensure proper alignment.
- Attach to Wall and Ground: Once the main frame is assembled, position the gazebo against the desired wall. Use the provided hardware to securely attach the wall-mounted side to your house structure. Then, anchor the ground-facing legs to your patio or deck using appropriate fasteners for your surface type (e.g., concrete anchors for concrete, lag screws for wood).
- Install Roof Panels: Carefully slide the flexible roof panels into their designated channels. Remember to install the UV-resistant side facing upwards.
- Final Tightening: Once all components are in place and aligned, systematically tighten all screws and bolts to ensure a rigid and stable structure.
Video 1: Official AECOJOY Installation Guide. This video provides a visual walkthrough of the assembly process, including important tips for aligning parts and tightening screws.

Figure 3: Illustration of the stable frame legs with pre-drilled holes for attachment to the ground and additional holes for secure wall mounting.
Operating Instructions
The AECOJOY Gazebo is designed for year-round use, providing a comfortable and protected outdoor space. Its hardtop roof offers significant benefits for various activities and weather conditions.
Weather Resistance:
- Rain Protection: The slanted roof design facilitates efficient rainwater runoff, keeping the area underneath dry. While the main area remains dry, some sideways rain may still reach the edges during heavy downpours.
- Wind Resistance: When securely fastened to both the wall and the ground, the gazebo can withstand wind speeds of 40-70 mph.
- Snow Load: The gazebo is designed to endure snow accumulation of up to 2.4 inches, with an impressive static pressure test rating of 66 lbs/m².
- UV Protection: The heavily tinted roof panels block harmful UV rays, providing UPF 50+ protection and blocking up to 99% of UV radiation, making it a safe space for outdoor activities even on sunny days.

Figure 4: Visual representation of the gazebo's performance in both summer (UV protection) and winter (snow load capacity).
Usage Scenarios:
This pergola is versatile and perfect for various outdoor settings:
- Near a pool or hot tub for shaded relaxation.
- As an outdoor dining area for family gatherings.
- Creating an entertainment space in your backyard or on your deck.
Video 2: This video demonstrates how the AECOJOY Gazebo can be integrated into various outdoor settings, enhancing lifestyle and comfort.
Video 3: This video illustrates the practical integration of the AECOJOY Gazebo into everyday life, showcasing its utility and aesthetic appeal.
Maintenance
Regular maintenance will ensure the longevity and continued performance of your AECOJOY Gazebo.
- Cleaning: Clean the roof panels and frame periodically with mild soap and water. Avoid abrasive cleaners or harsh chemicals that could damage the finish or panels.
- Panel Inspection: Regularly inspect the flexible panels for any signs of damage or wear. While designed to be durable, extreme conditions or impacts could cause issues.
- Fastener Check: Periodically check all screws and bolts to ensure they remain tight. Re-tighten as necessary to maintain structural integrity.
- Snow Removal: While the gazebo can withstand some snow, it is advisable to clear heavy snow accumulation from the roof to prevent excessive stress on the structure, especially in regions with heavy snowfall.
- Drainage: Ensure the drainage channels are clear of debris (leaves, twigs) to allow for proper water runoff.
Troubleshooting
Here are some common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Gazebo feels wobbly after assembly. | Screws not fully tightened; improper wall or ground anchoring. | Ensure all screws are fully tightened. Verify that the gazebo is securely anchored to both the wall and the ground. Consider additional bracing if needed for extreme conditions. |
| Water leakage from the roof. | Improper panel installation (UV side down); gaps in panel seals; clogged drainage. | Check that roof panels are installed with the UV-resistant side facing upwards. Inspect panel seals for any gaps and apply silicone sealant if necessary. Clear any debris from drainage channels. |
| Missing or damaged parts upon delivery. | Shipping damage or packaging error. | Contact AECOJOY customer service immediately with your order details. Do not attempt to assemble with missing parts. |
| Difficulty aligning screw holes during assembly. | Screws were tightened too early in the assembly process. | Loosen all screws in the current section to allow for greater flexibility. Insert all screws loosely before tightening any of them. |
Specifications
- Brand: AECOJOY
- Model: 12' x 20' Large Gazebo Pergola
- Color: Dark
- Material: Aluminum, Metal & Sun Panels
- Style: Wall-mounted Lean-to Gazebo Pergola
- Product Dimensions: 240"L x 144"W x 96"H (20'L x 12'W x 8'H)
- Item Weight: 331 Pounds
- Water Resistance Level: Waterproof
- Ultraviolet Light Protection: UPF 50++
- Assembly Required: Yes
- Wind Resistance: 40-70 mph (when securely fastened)
- Snow Load Capacity: Up to 2.4 inches (static pressure 66 lbs/m²)

Figure 5: Detailed dimensions of the AECOJOY 12' x 20' Hardtop Gazebo.
Warranty and Support
AECOJOY stands behind the quality of its products. Your gazebo comes with a 1-year warranty from the date of purchase.
For any questions, concerns, or assistance with your product, our dedicated customer service team is available 24/7. Please refer to your purchase documentation for specific contact information or visit the official AECOJOY website for lifelong, customer-friendly support.
You can also visit the AECOJOY Store on Amazon for more information and resources.





