1. Introduction
Thank you for choosing the DEXSO 12x20 ft Hardtop Gazebo. This manual provides essential information for the safe assembly, operation, and maintenance of your gazebo. Please read these instructions thoroughly before beginning assembly and retain them for future reference.
Safety Information
- Ensure all parts are present and undamaged before assembly. Do not proceed with assembly if any parts are missing or damaged.
- Assembly requires at least two adults.
- Wear appropriate safety gear, such as gloves, during assembly.
- Choose a level and stable surface for installation.
- Secure the gazebo to the ground using appropriate anchoring methods to prevent wind damage.
- Do not hang heavy objects from the frame.
- In case of severe weather conditions (e.g., heavy snow, strong winds), it is recommended to remove the curtains and netting and, if possible, disassemble the roof panels to prevent damage.
2. Package Contents
Verify that all components listed below are included in your package. If any parts are missing or damaged, please contact DEXSO customer support.
- Aluminum Frame Components (posts, beams, connectors)
- Double-Layer Polycarbonate Roof Panels
- Mosquito Netting Set
- Curtain Set
- Hardware Kit (screws, bolts, washers, tools)
- Assembly Instructions Manual
3. Setup and Assembly
The DEXSO Hardtop Gazebo is designed for straightforward assembly. Follow the detailed assembly instructions provided in your package. It is crucial to follow each step carefully to ensure structural integrity and safety.
General Assembly Steps:
- Preparation: Unpack all components and lay them out. Identify each part using the provided parts list. Ensure you have the necessary tools (usually included in the hardware kit, but a screwdriver or wrench may be helpful).
- Frame Assembly: Begin by assembling the main aluminum frame structure. Connect the posts, beams, and support bars as indicated in the manual. Ensure all connections are secure.
- Roof Installation: Carefully install the double-layer polycarbonate roof panels onto the assembled frame. Ensure panels are correctly oriented for proper rainwater drainage.
- Netting and Curtains: Attach the mosquito netting and curtains to the designated tracks or hooks on the gazebo frame.
- Anchoring: Securely anchor the gazebo to the ground using the provided hardware or suitable anchoring solutions for your specific installation surface.

An assembled DEXSO 12x20 ft Hardtop Gazebo, featuring its aluminum frame, polycarbonate roof, and drawn curtains, positioned next to a swimming pool.

The DEXSO 12x20 ft Hardtop Gazebo set up in a snowy environment, demonstrating how the polycarbonate roof allows natural light to enter while providing shelter.
4. Operating Your Gazebo
Polycarbonate Roof
The double-layer polycarbonate roof is designed to provide excellent waterproof and UV-resistant properties. It allows natural light to filter through, creating a comfortable environment while blocking harmful UV rays. The roof also features an integrated rainwater drainage system to prevent water accumulation and ensure long-term anti-rust performance of the frame.

A close-up view of the DEXSO gazebo's roof and surrounding area, highlighting the integrated rainwater drainage system designed to keep the space dry.
Netting and Curtains
Your gazebo is equipped with high-density mosquito netting and waterproof curtains. These can be adjusted to provide privacy, protection from insects, or to allow an open-air experience.
- Mosquito Netting: Use the netting to keep insects out while maintaining airflow.
- Curtains: Draw the curtains for increased privacy or protection from sun and light rain. They can be tied back when not in use.
- Zippers: The curtains and netting feature smooth metal zippers for easy opening and closing.

A detailed view of the gazebo's side, showcasing the high-density mosquito net, the waterproof curtain fabric, and the smooth metal zipper mechanism for opening and closing.

A visual representation illustrating the versatility of the gazebo's side enclosures, with options for fully closed curtains, fully open, semi-open, and mosquito net only.
5. Maintenance
The DEXSO Hardtop Gazebo is designed for low maintenance. Regular cleaning will help preserve its appearance and extend its lifespan.
Cleaning Instructions:
- Frame: Clean the aluminum frame with a soft cloth, mild soap, and water. Rinse thoroughly and dry to prevent water spots. Avoid abrasive cleaners or harsh chemicals.
- Roof Panels: Gently clean the polycarbonate roof panels with a soft brush or cloth, mild soap, and water. Rinse well. Do not use high-pressure washers or abrasive materials that could scratch the surface.
- Netting and Curtains: The netting and curtains can be spot cleaned with mild soap and water. For deeper cleaning, refer to any specific care labels if available. Ensure they are completely dry before storing or closing for extended periods to prevent mildew.
- Hardware: Periodically check all bolts and screws to ensure they remain tight. Tighten as necessary.
6. Troubleshooting
This section addresses common issues you might encounter with your gazebo.
- Gazebo feels unstable: Ensure all frame connections are securely tightened. Verify that the gazebo is anchored properly to a level surface.
- Water leakage from roof: Check that all polycarbonate roof panels are correctly installed and sealed according to the assembly instructions. Ensure no debris is blocking the drainage system.
- Curtains/Netting not moving smoothly: Inspect the tracks for any obstructions or damage. Clean the tracks and ensure the zippers are free of debris.
- Missing parts during assembly: Refer to the package contents list. If parts are genuinely missing, contact DEXSO customer support immediately.
7. Specifications
| Attribute | Detail |
|---|---|
| Brand | DEXSO |
| Model | 12x20 |
| Product Dimensions | 240"L x 144"W x 120"H (12 ft x 20 ft) |
| Frame Material | Aluminum |
| Roof Material | Double-Layer Polycarbonate |
| Water Resistance Level | Waterproof |
| Ultraviolet Light Protection | Yes |
| Assembly Required | Yes |
| Item Weight | 326 pounds |
| UPC | 198723447445 |
8. Warranty and Customer Support
For warranty information, specific terms and conditions, or to obtain replacement parts, please contact DEXSO customer support. Keep your purchase receipt as proof of purchase.
DEXSO Customer Support: Refer to your purchase documentation or the DEXSO official website for contact details.





