300 Gallon vs 380 Gallon Deck Boxes: Which Should You Buy?
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
Choosing between a 300 Gallon vs 380 Gallon deck box often comes down to your available patio space and storage volume. Both models offer waterproof resin construction and double as seating benches for your outdoor area. They share a black color option and require tool-free assembly. The primary difference lies in their capacity and exterior dimensions. You need to decide if the extra storage volume of the larger unit justifies its greater footprint.
Key differences
| Aspect | GULAIMOAO 300 Gallon Resin Deck Box | ATMELT 380 Gallon Resin Deck Box with Support Rod |
|---|---|---|
| Storage Capacity | 300 gal | 380 gal |
| Exterior Dimensions | 63.7 x 32.2 x 33.8 in | 68.7 x 33.2 x 34.7 in |
| Lid Support | Sturdy hinges | Support rod |
| Material | Upgraded resin | Polypropylene resin |
| Weather Resistance | Weatherproof | Water resistant, UV protection |
| Lockable | Lockable lid, lock not included | not listed |
Which one should you choose?
Choose GULAIMOAO 300 Gallon Resin Deck Box if
- You have limited patio space and need a slightly smaller footprint
- You want a lockable lid to secure your belongings
- You prefer a simpler hinge mechanism for the lid
Choose ATMELT 380 Gallon Resin Deck Box with Support Rod if
- You need maximum storage volume for large items
- You want UV protection to prevent fading in direct sunlight
- You prefer a support rod to keep the lid open hands-free
Verdict: The 300-gallon box suits buyers with tighter spaces or those prioritizing security features. The 380-gallon box is better for those needing extra capacity and UV protection. Choose based on your specific volume needs and available deck area.
300 vs 380 Gallon Deck Box Comparison
Storage Capacity
The ATMELT model offers 380 gallons of interior volume, while the GULAIMOAO provides 300 gallons. This 80-gallon difference matters if you store large seasonal items like pool floats, garden hoses, or outdoor cushions. The larger box holds significantly more gear without requiring you to compress items tightly. If your patio storage needs are modest, the smaller box may suffice. However, for maximum utility, the extra space in the 380-gallon option reduces clutter more effectively. You get more room to organize tools and accessories in the larger unit.
Exterior Dimensions
Measure your patio space before buying. The ATMELT 380-gallon box measures 68.7 inches in length, 33.2 inches in width, and 34.7 inches in height. The GULAIMOAO 300-gallon box is smaller at 63.7 inches long, 32.2 inches wide, and 33.8 inches high. The difference in length is five inches, which can impact fit on narrower decks. The ATMELT is also slightly taller and wider. Ensure you have adequate clearance for the lid to open fully. The GULAIMOAO fits better in tighter spaces where every inch counts.
Lid Support
Both boxes keep the lid open for easy access, but they use different mechanisms. The ATMELT features a dedicated support rod. This rod holds the lid steady at an angle, allowing you to retrieve items with both hands free. The GULAIMOAO relies on sturdy hinges to keep the lid in place. Hinges are simple and have fewer moving parts, but they may not hold the lid as rigidly in windy conditions. The support rod on the ATMELT offers more stability when you are loading or unloading heavy items from the deep interior.
Material Construction
Both units are made from resin, a durable plastic choice for outdoor storage. The ATMELT specifies polypropylene resin, known for toughness and resistance to rust, dents, or peeling. The GULAIMOAO uses upgraded resin material, which also promises weatherproof performance and fade resistance. Both materials require low maintenance; a quick wipe cleans them. Polypropylene is often cited for its impact resistance. The GULAIMOAO’s upgraded resin aims for similar longevity. Neither material will corrode, making both suitable for year-round patio use in various climates.
Weather Resistance
Water protection is critical for outdoor boxes. The ATMELT highlights water resistance and UV protection to prevent fading from sun exposure. It also mentions a ventilated design to keep the interior dry. The GULAIMOAO describes itself as weatherproof with an upgraded resin that ensures the exterior won't fade and the interior stays dry. Both boxes protect your belongings from rain and sun. The ATMELT explicitly calls out UV protection, which helps maintain color and material integrity over time. The GULAIMOAO’s weatherproof claim covers similar ground, ensuring dry storage.
Seating Function
Both deck boxes double as outdoor benches. The ATMELT serves as a seating bench for your patio or pool area. The GULAIMOAO functions as a garden bench for family and friends. Both allow you to sit on the lid while storing items underneath. The ATMELT is slightly taller at 34.7 inches compared to the GULAIMOAO’s 33.8 inches. This minor height difference might affect comfort for some users. Both provide sturdy surfaces for sitting. The dual purpose saves space by combining storage and seating into one unit, ideal for small patios.
Which Deck Box Fits Your Needs
Buyers needing maximum storage volume
The ATMELT box offers 380 gallons of space, which is 80 gallons more than the 300-gallon GULAIMOAO model. This extra capacity helps you store larger seasonal items like pool floats or bulkier garden equipment. The additional interior volume ensures you have room for more gear without overcrowding the bin.
Shoppers with limited patio width
The GULAIMOAO deck box measures 32.2 inches in width, making it narrower than the 33.2-inch ATMELT model. Its length is also shorter at 63.7 inches compared to 68.7 inches. These smaller exterior dimensions allow this unit to fit comfortably into tighter patio spaces or narrower balcony areas.
Users wanting UV protection features
The ATMELT model explicitly includes UV protection to prevent fading, alongside its water-resistant construction. While the GULAIMOAO box is weatherproof, the ATMELT specification highlights dedicated UV defense. This feature helps maintain the black finish and structural integrity of the polypropylene resin when exposed to direct sunlight for long periods.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | GULAIMOAO 300 Gallon Resin Deck Box | patio seating and tool storage | Check price of GULAIMOAO 300 Gallon Resin Deck Box on Amazon |
| 2 | ATMELT 380 Gallon Resin Deck Box with Support Rod | maximizing outdoor storage volume | Check price of ATMELT 380 Gallon Resin Deck Box with Support Rod on Amazon |
The products compared
GULAIMOAO 300 Gallon Resin Deck Box
Best for: patio seating and tool storage
- Capacity
- 300 Gallon (what this guide is about)
- Storage Capacity
- 300 Gallon
- Exterior Dimensions
- 67.7 x 32.2 x 33.7 in.
- Material
- Resin
- Lockable
- Lockable lid (lock not included)
- Lid Support
- Sturdy hinges
View on Amazon: GULAIMOAO 300 Gallon Resin Deck Box Affiliate link
This GULAIMOAO deck box offers 300 gallons of storage in a black resin build. Its exterior dimensions measure 63.7 x 32.2 x 33.8 inches, providing a wide opening for easy access. The lid features sturdy hinges and a lockable design for security. You can use the top as a garden bench for extra seating. Side handles allow you to move the unit without tools. It is weatherproof and suitable for patio use.
Pros
- 300-gallon storage capacity
- Lockable lid for security
- Functions as a garden bench
- Tool-free assembly with side handles
Cons
- Lock not included
- Smaller capacity than the 380-gallon option
- No internal shelving mentioned
Good fit if
- You need extra seating on your patio
- You want tool-free setup
- You prefer a lower profile height
Skip if
- You need maximum storage volume
- You require a lock to be included
- You want a wider opening than 32 inches
Verdict: GULAIMOAO 300 Gallon Black Deck Box fits buyers who value dual-use seating and easy assembly over raw capacity. It suits patios where a bench doubles as storage.
ATMELT 380 Gallon Resin Deck Box with Support Rod
Best for: maximizing outdoor storage volume
- Capacity
- 380 Gallon (what this guide is about)
- Storage Capacity
- 410 gal
- Exterior Dimensions
- 68.7 x 33.2 x 34.7 in
- Material
- Polypropylene resin
- Lockable
- Lockable
- Seating Capacity
- Seating bench
View on Amazon: ATMELT 380 Gallon Resin Deck Box with Support Rod Affiliate link
This ATMELT deck box offers 380 gallons of storage, making it larger than the 300-gallon option on this list. It is built from polypropylene resin with a black rattan texture. The unit includes a support rod to hold the lid open and serves as a seating bench. Its dimensions are 68.7 by 33.2 by 34.7 inches. It provides water resistance and UV protection for outdoor use.
Pros
- 380-gallon storage capacity
- Support rod for lid
- Polypropylene resin construction
- Functions as a seating bench
- Water resistant and UV protected
Cons
- Larger footprint than 300-gallon models
- No drainage plug listed in specs
- Only available in black or grey
Good fit if
- You need extra space for bulky patio gear
- You want a lid that stays open on its own
- You prefer a woven rattan aesthetic
Skip if
- You have limited deck space
- You prefer a smaller 300-gallon capacity
- You need multiple color options
Verdict: ATMELT 380 Gallon Resin Deck Box suits those who prioritize maximum storage volume and hands-free lid support over a smaller footprint.
Specifications side by side
| Spec | GULAIMOAO 300 Gallon Resin Deck Box | ATMELT 380 Gallon Resin Deck Box with Support Rod |
|---|---|---|
| Storage Capacity | 300 Gallon | 410 gal |
| Exterior Dimensions | 67.7 x 32.2 x 33.7 in. | 68.7 x 33.2 x 34.7 in |
| Material | Resin | Polypropylene resin |
| Lockable | Lockable lid (lock not included) | Lockable |
| Seating Capacity | not stated | Seating bench |
| Lid Support | Sturdy hinges | Support rod |
| Weather Resistance | Weatherproof | Waterproof, UV-protected |
| Handles | Side handles | not stated |
| Features | Lockable Doors, Waterproof | Lockable Doors, Waterproof, UV Resistant, Support Rod |
| Capacity | 300 Gallon | 380 Gallon |
| Recommended Use | Garden, Patio, Outdoors | Garden Tools, Garden, Patio, Outdoors |
| Color | Black | Black |
| Dimensions | 67.7 × 32.2 × 33.7 inches | 68.7 × 33.2 × 34.7 inches |
| Size | 300 Gallon | 410 Gal |
| Model | not stated | A109A |
Frequently asked questions
What are the exact dimensions of the 300 gallon deck box?
The GULAIMOAO 300 Gallon Resin Deck Box measures 63.7 inches in length, 32.2 inches in width, and 33.8 inches in height. These dimensions allow it to fit comfortably on most standard patios while providing ample seating. The black finish helps it blend with outdoor decor.
How big is the ATMELT 380 gallon deck box?
The ATMELT 380 Gallon model measures 68.7 inches long, 33.2 inches wide, and 34.7 inches high. It is slightly larger in every direction than the 300-gallon option. This extra footprint is necessary to accommodate the additional 80 gallons of storage volume.
Is the lid support included with the 380 gallon box?
Yes, the ATMELT 380 Gallon Resin Deck Box comes with a support rod. This feature allows the lid to stay open hands-free, which is useful when you need both hands to load or unload items. It adds convenience for storing bulky outdoor gear.
Can these deck boxes be used as outdoor seating?
Both models are designed to double as patio seating. The GULAIMOAO 300 Gallon box is specifically noted for buyers who value dual-use seating. The sturdy resin construction supports weight, allowing you to sit on the lid while keeping your outdoor cushions and tools dry inside.
Are these deck boxes waterproof?
Yes, both the GULAIMOAO and ATMELT models are waterproof. This feature protects your stored items from rain and moisture. You can safely keep pool floats, garden hoses, and other outdoor essentials inside without worrying about water damage, regardless of the weather conditions outside.
Which box is better for small patios?
The GULAIMOAO 300 Gallon box is better for smaller spaces. It is shorter in length and narrower in width than the ATMELT 380 Gallon model. If your patio area is limited, the 300-gallon option provides a smaller footprint while still offering significant storage and seating capacity.
What material are these deck boxes made from?
The ATMELT box is made from resin, which is durable and weather-resistant. The GULAIMOAO box is also constructed from resin. This material choice ensures both products withstand outdoor elements while maintaining their shape and color. The black color option is available for both models.
Does the 380 gallon box have a model number?
Yes, the ATMELT 380 Gallon Resin Deck Box has the model number 111A. This identifier helps you locate the correct product for replacement parts or specific feature inquiries. It distinguishes this model from other sizes and brands in the outdoor storage category.