1. Introduction and Overview
Thank you for choosing the Garvee 12x20 ft Portable Garage. This manual provides essential information for the safe assembly, operation, and maintenance of your portable shelter. This versatile structure is designed to provide temporary shelter for vehicles, boats, equipment, or serve as an event space or temporary workshop.
The Garvee portable garage features a sturdy galvanized steel frame and a durable 200g PE tarp canopy, offering protection from sun, rain, and dust. It includes two roll-up doors and four mesh windows for ventilation and easy access.

Image 1.1: Overview of the Garvee 12x20 ft Portable Garage, highlighting its spacious dimensions of approximately 229 inches (length), 136 inches (width), and 114 inches (height).

Image 1.2: Illustration of the heavy-duty triple-layer 200g PE cover, demonstrating its UV-resistant and rainwater-proof properties under varying weather conditions.
2. Safety Information
WARNING: This is a temporary shelter, not a permanent building. Adhere to all safety guidelines to prevent damage or injury.
- Wind and Weather Conditions: The structure is designed for reliable stability under Beaufort 5 winds. In high winds (Beaufort 5+), it is recommended to remove the tarp to prevent damage. In severe weather (Beaufort 7+) or heavy snow, temporary disassembly is advised.
- Anchoring: Always use the provided reinforced guylines and ground stakes. For semi-permanent setups or increased stability, consider self-reinforcement with additional anchors or sandbags.
- Assembly: Requires at least two adults for safe assembly. Wear appropriate safety gear, such as gloves, during installation.
- Site Selection: Choose a level, clear area free from overhead obstructions, power lines, or sharp objects that could damage the tarp.
- Fire Safety: Keep all heat sources and open flames away from the tarp material. The material is not fireproof.

Image 2.1: Close-up view of the reinforced guylines and ground stakes, illustrating their role in providing reliable stability for the portable garage.
3. Package Contents
Before beginning assembly, ensure all parts are present and undamaged. Refer to the packing list included with your product for specific component identification.
Typical components include:
- Galvanized Steel Poles (various lengths and types for frame)
- Connectors/Joints
- 200g PE Tarp Canopy
- Roll-Up Doors (2 units)
- Mesh Windows (4 units)
- Guylines
- Ground Stakes
- Bungee Cords or Fasteners
- Assembly Hardware (bolts, nuts, washers, if applicable)
If any parts are missing or damaged, do not proceed with assembly. Contact Garvee customer support immediately.
4. Setup and Assembly Instructions
Assembly typically takes approximately 1 hour with two people. Follow these steps carefully:
- Prepare the Site: Clear the chosen area of debris and ensure it is level.
- Unpack Components: Lay out all frame poles, connectors, and the tarp. Organize them according to the parts list.
- Assemble the Base Frame: Connect the base poles using the appropriate connectors. Ensure all connections are secure.
- Construct Side and Roof Frames: Gradually build up the side and roof sections by connecting poles and joints. Follow the diagram in your specific assembly guide for correct orientation.
- Attach the Tarp Canopy: Carefully drape the 200g PE tarp over the assembled frame. Ensure it is centered and evenly distributed. Secure the tarp to the frame using bungee cords or fasteners as indicated in your guide. Ensure the tarp is taut to prevent water pooling.
- Install Doors and Windows: Attach the roll-up doors at each end and the mesh windows on the sides. These typically secure with zippers, Velcro, or ties.
- Secure the Structure: Use the provided guylines and ground stakes to firmly anchor the portable garage to the ground. Ensure guylines are tensioned correctly for maximum stability.
- Final Check: Double-check all connections, fasteners, and anchors to ensure everything is secure before use.

Image 4.1: Visual representation indicating that the installation process for the portable garage typically takes less than 2 hours.
5. Operating Instructions
The Garvee portable garage is designed for ease of use and versatility.
- Roll-Up Doors: The two zippered roll-up doors can be opened and secured in an upward position using the integrated straps or buckles, allowing for easy vehicle access or increased airflow.
- Mesh Windows: The four mesh windows provide optimal airflow and can be rolled up or down as needed for ventilation or privacy.
- Versatile Use: This shelter is suitable for storing full-sized pickups, bass boats, tractors, or as a temporary paint booth, event shelter, or workshop.

Image 5.1: The Garvee portable garage providing shelter for a boat on a trailer, demonstrating its utility as a boat shed.

Image 5.2: The portable garage configured as a garden shed or event shelter, showcasing its adaptability for various outdoor activities.
6. Maintenance
Regular maintenance will extend the life of your portable garage.
- Cleaning: Clean the tarp canopy periodically with mild soap and water. Avoid harsh chemicals or abrasive brushes that could damage the PE material. Rinse thoroughly.
- Frame Inspection: Annually inspect the galvanized steel frame for any signs of rust, bending, or loose connections. Tighten any loose bolts or replace damaged components.
- Tarp Condition: Check the tarp for tears, punctures, or excessive wear. Small tears can often be repaired with a tarp repair kit.
- Anchoring System: Regularly inspect guylines and ground stakes for wear, corrosion, or loosening. Re-tension guylines and re-secure stakes as needed, especially after strong winds.
- Seasonal Storage: If disassembling for long-term storage, clean and thoroughly dry all components before packing them away in a cool, dry place to prevent mold and rust.
7. Troubleshooting
Here are solutions to common issues you might encounter:
- Issue: Structure feels unstable in moderate wind.
Solution: Ensure all guylines are properly tensioned and ground stakes are firmly driven into the ground. Consider adding extra anchors or sandbags for increased stability. Review site selection for wind exposure. - Issue: Water pooling on the tarp canopy.
Solution: The tarp may not be sufficiently taut. Re-adjust the tarp and frame connections to ensure a tight fit and proper slope for water runoff. Check for any sagging frame components. - Issue: Zippers on doors/windows are sticking.
Solution: Clean the zipper teeth with a brush and apply a silicone-based lubricant or zipper wax. Avoid forcing the zipper. - Issue: Frame poles are difficult to connect.
Solution: Ensure you are using the correct poles and connectors as per the assembly guide. A rubber mallet can be used gently to tap connections into place, but avoid excessive force. Check for any bent poles.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | GV-CAP-1220-WHdn |
| Dimensions (L x W x H) | 238" x 141.73" x 106.3" (approx. 19.8 ft x 11.8 ft x 8.8 ft) |
| Item Weight | 104 Pounds |
| Frame Material | Alloy Steel, Galvanized Steel (21 & 18-gauge), Rust-resistant Powder Coating |
| Cover Material | 200g PE Tarp Canopy |
| UV Protection | Yes |
| Water Resistance Level | Water Repellent |
| Doors | 2 Roll-Up Doors |
| Windows | 4 Roll-Up Mesh Windows |
| Assembly Time | Approx. 1 hour (with 2 people) |
| UPC | 840547487618 |
9. Warranty and Support
Manufacturer Warranty: This Garvee portable garage comes with a 1-year manufacturer warranty against defects in materials and workmanship.
Claiming Warranty: To claim warranty service, please retain your proof of purchase. Contact Garvee customer support with details of the issue and your purchase information.
Customer Support: For any questions, missing parts, or assistance with assembly or operation, please refer to the contact information provided with your purchase or visit the official Garvee website for support resources.





