6 Best Alternatives to the WACASA 13x20 FT Military-Grade Metal Storage Shed (2026)

Latest update: November 4, 2026

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You are looking for wacasa 13x20 ft military grade metal storage shed alternatives because the original model has specific constraints. The WACASA unit offers 260 square feet of enclosed space with an 8-foot peak clearance and skylights. However, its weight of 580 pounds and requirement for a concrete foundation or deep auger anchors limit placement options. Some buyers need an open-air structure to reduce assembly complexity or cost.

The 6 products on this list were chosen because their specifications overlap with the original’s core needs. All alternatives use metal construction for durability. Several share the 20x40 foot footprint or similar dimensions for large vehicle storage. You will find options with reinforced frames, different roof orientations, and varying height clearances. These specs provide flexibility if you do not need fully enclosed walls or skylights. Each product’s data highlights how it meets your storage requirements while offering a different structural approach.

Our top pick: WACASA 13x20 Metal Shed with Skylight.

How these options compare

Aoxun 20x40 ft Metal Carport with Enhanced Base

The Aoxun 20x40 FT carport swaps enclosed storage for a much larger open footprint. It measures 237 inches wide and 458 inches long, offering significantly more ground coverage than the 13x20 FT WACASA shed. However, it lacks walls and doors, so it does not protect contents from rain or theft. You gain 200 square feet of extra space but lose the secure, weatherproof interior. This model suits buyers who need to cover multiple vehicles or large equipment without the complexity of building walls. It is a practical choice for open-air parking rather than secure storage.

AirWire 20x40 FT Metal Carport, Reinforced Base

The AirWire 20x40 FT carport features a reinforced frame and weighs 923 pounds, making it substantially heavier and more stable than the 580-pound WACASA shed. Its width of 236 inches and length of 458 inches provide a vast open area for large vehicles. Like the Aoxun, it offers no walls or doors, meaning you sacrifice security and weather protection for sheer size. The reinforced structure suggests better wind resistance, but you cannot store items safely inside from the elements. Pick this model if you need a heavy-duty, open shelter for large equipment and do not require an enclosed space.

Jocisland 20x30 FT Steel Carport

The Jocisland 20x30 FT carport provides a gray, open-air shelter that is wider than the WACASA shed but lacks enclosed walls. It weighs 810 pounds, offering more stability than the original model. The footprint is 234 inches wide and 349 inches long, which is larger in width but shorter in length. You get a sturdy, weather-resistant cover for vehicles but lose the ability to store tools or sensitive items indoors. This option is ideal for buyers with concrete pads who need open coverage for multiple large items. It is a better fit for vehicle parking than for secure, enclosed storage needs.

EASYHAWK 20x40 ft Metal Carport

The EASYHAWK 20x40 FT carport is a heavy-duty option weighing 1224 pounds, significantly heavier than the WACASA shed. It measures 238 inches wide and 466 inches long, providing a massive open area for trucks and boats. Like other carports, it lacks walls and doors, so you cannot protect contents from rain or theft. The increased weight suggests robust construction, but you give up the enclosed security of the original model. This choice suits buyers who need a wide, sturdy shelter for large vehicles on prepared ground. It is a practical solution for outdoor vehicle storage rather than secure indoor storage.

AirWire 20x40 ft Metal Carport with Triangle Frame Base

The AirWire 20x40 FT carport with a triangle frame base weighs 1179 pounds, offering much greater stability than the 580-pound WACASA shed. Its width of 236 inches and length of 456 inches provide ample space for large vehicles. However, it is an open structure without walls or doors, so you lose the enclosed, secure environment of the original model. This design is best for buyers who need wide, tall coverage for RVs or boats but do not require protection from the elements for stored items. It is a suitable alternative for those prioritizing vehicle shelter over secure storage.

GarveeLife 20x30 ft Metal Carport

The GarveeLife 20x30 FT carport features a vertical roof design and weighs only 100 pounds, making it much lighter than the WACASA shed. It measures 356 inches wide and 236 inches long, offering a unique footprint orientation. Like other carports, it lacks walls and doors, so you cannot store items securely indoors. The low weight suggests easier handling but potentially less stability in high winds. This model suits buyers who need tall clearance for RVs or trailers and are willing to manage assembly. It is a practical choice for open vehicle storage rather than secure, enclosed storage.

Quick picks

#	Product	Best for	Price
1	WACASA 13x20 Metal Shed with Skylight Best overall	Secure, high-clearance storage	Check price of WACASA 13x20 Metal Shed with Skylight on Amazon
2	Aoxun 20x40 ft Metal Carport with Enhanced Base Also great	Covering multiple vehicles or large equipment	Check price of Aoxun 20x40 ft Metal Carport with Enhanced Base on Amazon
3	AirWire 20x40 FT Metal Carport, Reinforced Base Best budget	storing large vehicles and equipment	Check price of AirWire 20x40 FT Metal Carport, Reinforced Base on Amazon
4	Jocisland 20x30 FT Steel Carport Also great	Multiple vehicle shelter on concrete	Check price of Jocisland 20x30 FT Steel Carport on Amazon
5	EASYHAWK 20x40 ft Metal Carport Best premium	storing large trucks and boats	Check price of EASYHAWK 20x40 ft Metal Carport on Amazon
6	AirWire 20x40 ft Metal Carport with Triangle Frame Base Also great	Multiple vehicles or tall RVs	Check price of AirWire 20x40 ft Metal Carport with Triangle Frame Base on Amazon
7	GarveeLife 20x30 ft Metal Carport Best vertical	tall vehicle storage with steep roofs	Check price of GarveeLife 20x30 ft Metal Carport on Amazon

Our 7 picks

Best overall

WACASA 13x20 Metal Shed with Skylight

Best for: Secure, high-clearance storage

Footprint Size: 13x20 FT
Frame Material: Powder-coated steel
Frame Wall Thickness: 18-Gauge
Roof Material: Galvanized steel
Door Type: Double doors, side door
Height Range: 8 ft peak

View on Amazon: WACASA 13x20 Metal Shed with Skylight Affiliate link

This 13x20 ft metal storage shed offers 260 sq. ft. of covered space with an 8 ft peak clearance. It is built from 23-gauge galvanized steel with a reinforced 18-gauge truss system for durability. The structure includes four polycarbonate skylights for natural light and four vents for airflow. You get both a wide double front door and a separate side door for flexible access. It weighs 580 pounds and requires secure anchoring for stability.

Pros

260 sq. ft. interior footprint
8 ft peak clearance
18-gauge internal truss system
Four polycarbonate skylights
Dual entry doors

Cons

Heavy 580-pound weight
Requires separate auger anchors for non-concrete ground
Limited to one color option

Good fit if

You need high clearance for vehicles or tall equipment
You want natural light without electricity
You prefer separate walk-in and vehicle access

Skip if

You are installing on soil without buying extra anchors
You need multiple color choices
You cannot handle a 580-pound assembly

Verdict: WACASA 13x20 FT Metal Shed provides robust structural support and ample headroom for large items. It fits buyers who need a permanent, well-lit workspace and are prepared to secure it to a solid foundation.

Also great

Aoxun 20x40 ft Metal Carport with Enhanced Base

Best for: Covering multiple vehicles or large equipment

Footprint Size: 20x40 FT
Frame Material: Galvanized steel
Roof Material: Galvanized steel
Recommended Use: Outdoors, Cars, Boats, Tractors
Color: Black
Dimensions: 458 × 237 × 128 inches

View on Amazon: Aoxun 20x40 ft Metal Carport with Enhanced Base Affiliate link

The Aoxun 20x40 FT carport provides a large 237 by 458 inch footprint with a 128 inch peak height. It uses a galvanized steel frame and roof to resist corrosion and water penetration. The reinforced base and thickened support system ensure stability in windy conditions. This shelter suits you if you need ample space for multiple vehicles, boats, or equipment. The black finish blends into outdoor spaces while offering durable all-weather protection.

Pros

Galvanized steel frame and roof panels resist corrosion
20x40 FT footprint covers multiple vehicles or equipment
128 inch height allows clearance for tall loads
Reinforced base and columns prevent shifting in wind
Rubberized edge trim prevents scratches on vehicles

Cons

No skylight or ventilation panels for airflow
Requires assembly with basic tools and multiple people
Solid roof blocks natural light completely

Good fit if

You need a large covered area for trucks or boats
You want a durable metal structure instead of fabric
You require a high clearance for tall vehicles

Skip if

You prefer a fully enclosed shed with walls
You need a structure with built-in lighting or windows
You want a pre-assembled unit that requires no tools

Verdict: Aoxun 20x40 FT Black Metal Carport delivers a spacious, corrosion-resistant shelter for large vehicles. It fits buyers who need a sturdy, open-air cover for multiple cars or equipment without the cost of a full garage.

Best budget

AirWire 20x40 FT Metal Carport, Reinforced Base

Best for: storing large vehicles and equipment

Footprint Size: 20x40 ft
Frame Material: galvanized steel
Frame Tube Diameter: 1.5 in
Roof Material: metal
Features: Reinforced Frame
Recommended Use: Outdoors, Cars, Boats, Trucks

View on Amazon: AirWire 20x40 FT Metal Carport, Reinforced Base Affiliate link

The AirWire 20x40 FT metal carport offers a large footprint of 20 by 40 feet with a height of 129 inches. It features a 1.5-inch square steel frame and a metal roof with waterproof seals. The structure includes nine center roof beams and eighteen anchor bolts for stability. This setup suits those needing ample space for vehicles or outdoor events while prioritizing structural reinforcement against wind.

Pros

20x40 FT footprint for large vehicles
1.5-inch square steel frame tubing
129 inches of vertical clearance
Nine additional center roof beams
Waterproof seals on the metal roof

Cons

Heavy weight of 923 pounds
Requires five to six people for installation
No side walls included in the design

Good fit if

You need space for a tractor or boat
You want reinforced wind resistance
You prefer a flat roof design

Skip if

You need a fully enclosed shed
You want a smaller 13x20 FT size
You cannot lift heavy components

Verdict: AirWire 20x40 FT Metal Carport provides a robust, open-air solution for storing large equipment. It is ideal for buyers who need a wide, high-clearance shelter without the cost or complexity of walls.

Also great