1. Introduction
This manual provides detailed instructions for the assembly, operation, and maintenance of your BNSPLY 25x33 FT Double Garage Metal Shed. This extra-large metal building offers 825 sq. ft. of storage space, designed for vehicles, farm equipment, and various tools. Constructed with a 16 GA steel frame and electro-galvanized steel sheets, it provides durability and resistance to corrosion and rust. Please read all instructions carefully before beginning assembly and retain this manual for future reference.

Image 1.1: Exterior view of the BNSPLY 25x33 FT Double Garage Metal Shed.
2. Safety Information
Always prioritize safety during assembly and use of the shed. Failure to follow safety guidelines may result in injury or damage to the product.
- Site Preparation: Ensure the assembly site is level, clear of debris, and has adequate drainage. A properly prepared foundation is crucial for stability.
- Team Assembly: Due to the size and weight of components, assembly requires at least two people.
- Protective Gear: Wear appropriate personal protective equipment, including gloves and eye protection, during assembly.
- Tool Safety: Use tools correctly and ensure they are in good working condition.
- Weather Conditions: Do not assemble the shed during strong winds, heavy rain, or other adverse weather conditions.
- Anchoring: Securely anchor the shed to the ground immediately after assembly to prevent wind damage.
- Ventilation: Ensure proper ventilation when storing items that may emit fumes.
- Weight Distribution: Distribute stored items evenly to maintain structural integrity.
3. Parts List
Before beginning assembly, verify that all components listed below are present and undamaged. If any parts are missing or damaged, contact customer support immediately.
- 1x Metal Garage Shed (panels, frame components)
- Hardware (screws, bolts, washers, nuts)
- Assembly Manual

Image 3.1: Product size diagram and included accessories.
4. Setup and Assembly
The shed is designed for straightforward assembly with pre-cut and pre-drilled parts. Follow these steps carefully for proper construction.
4.1 Site Preparation
- Choose a flat, level area for installation. A concrete slab or gravel foundation is recommended for optimal stability and drainage.
- Clear the area of any obstacles, debris, or vegetation.
4.2 Frame Assembly
- Unpack all components and organize them according to their labels.
- Begin by assembling the base frame, ensuring all corners are square and level.
- Attach the vertical support beams to the base frame.
- Connect the roof trusses and horizontal beams to form the roof structure.

Image 4.1: Internal view of the shed's steel frame during construction.
4.3 Panel Installation
- Attach the wall panels to the assembled frame, starting from a corner and working your way around. Ensure panels overlap correctly for weatherproofing.
- Install the roof panels, securing them to the roof trusses.

Image 4.2: Interior view showcasing the roof and wall paneling.
4.4 Door Installation
- Assemble and install the main garage doors.
- Install the side door, which can be placed on either side based on your preference.
4.5 Final Steps
- Double-check all fasteners to ensure they are tight and secure.
- Apply any necessary sealants to ensure waterproofing.
- Anchor the shed to the ground using appropriate floor anchors.
Video 4.3: Overview of the Double Garage Shed, highlighting its metal construction and side entry door.
5. Operating Instructions
Your BNSPLY Double Garage Metal Shed is designed for practical and secure storage.
5.1 Main Garage Doors
- The shed features two spacious, doorless entrances, each 8.4 feet wide with a 7.4-foot clear height, allowing easy access for vehicles and large equipment.
- Ensure the area in front of the entrances is clear before moving vehicles or equipment in or out.
5.2 Side Entry Door
- The side door provides convenient pedestrian access, separating foot traffic from vehicle movement.
- Always ensure the side door is securely closed and latched when not in use to protect stored items.

Image 5.1: Side door providing convenient access.
6. Maintenance
Regular maintenance will extend the life and appearance of your shed.
- Cleaning: Periodically clean the exterior panels with mild soap and water. Avoid abrasive cleaners or harsh chemicals that could damage the polyester coating.
- Inspection: Annually inspect all fasteners, bolts, and anchors for tightness. Tighten any loose connections.
- Rust Prevention: While the electro-galvanized steel is rust-resistant, promptly address any scratches or chips in the coating to prevent rust. Touch-up paint can be used if necessary.
- Drainage: Ensure the area around the shed remains clear of debris to allow for proper water drainage.
- Snow Load: In areas with heavy snowfall, regularly clear snow from the roof to prevent excessive load, especially if snow accumulation exceeds 21 lbs per sq. ft.

Image 6.1: Detail of the durable corrugated metal wall panels.
7. Troubleshooting
Here are solutions to common issues you might encounter:
| Problem | Possible Cause | Solution |
|---|---|---|
| Doors do not close properly or are misaligned. | Uneven foundation; loose hinges or frame connections. | Check and level the foundation. Tighten all door hinges and frame bolts. Adjust door alignment as needed. |
| Water leakage inside the shed. | Improperly sealed seams; damaged panels; inadequate drainage. | Inspect all seams and apply silicone sealant where necessary. Check panels for damage and replace if severely compromised. Ensure proper site drainage. |
| Shed feels unstable or wobbly. | Insufficient anchoring; loose frame connections. | Verify that the shed is securely anchored to the ground. Tighten all frame bolts and connections. |
| Rust spots appearing on panels. | Scratches or chips in the protective coating. | Clean the affected area, lightly sand if necessary, and apply rust-inhibiting primer followed by touch-up paint. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | BNSPLY |
| Model Number | metal garage |
| Dimensions (L x W) | 33 FT x 25 FT |
| Color | Cream |
| Material | Alloy Steel (16 GA steel frame, 0.32-0.38 mm electro-galvanized steel sheets with polyester coating) |
| Item Weight | 2480 Pounds |
| Style | Large Shed |
| Water Resistance Level | Waterproof |
| UV Protection | Yes |
| Wind Resistance | Up to 46 mph |
| Snow Load Capacity | Up to 21 lbs per sq. ft. |
| Main Door Clearance (W x H) | 8.4 FT x 7.4 FT (each of two entrances) |
| Required Assembly | Yes |
| UPC | 742378655702 |
| ASIN | B0FN486ZZT |
9. Warranty and Support
Your BNSPLY Double Garage Metal Shed comes with a 12-month warranty and a 30-day return or replacement policy. We are committed to protecting your rights and interests.
For any questions, concerns, or assistance regarding your metal building, please do not hesitate to contact our customer support team. We aim to resolve your inquiries promptly, typically within 24 hours.
Contact information for support can typically be found on the retailer's website or your purchase invoice.