Outsunny 8x16 Polycarbonate Walk-In Greenhouse
$595.99$677.99· Nov 12, 2026
8' x 16.4' · 131.2 sq ft · 4 mm polycarbonate
Outsunny · No. 11 of 13 in our ranking
Outsunny 6x8 Polycarbonate Walk-In Greenhouse review
8.2/10GoodUpdated November 12, 2026 by Megan Hollis
A 6x8 aluminum kit with 4 mm panels and a steel base for $381.99.
51.5 sq ft4 mm polycarbonateSnow: 8.2 lb/ft²Wind: 27 mph
$381.99$432.99at Aosom, checked November 12, 2026
At a glance: size, peak height, warranty
6.2' x 8.3'6'7" peakNot stated
Ships from Aosom; 30-day returns, return shipping may be charged on non-warranty returns.
Compare with rivals
Our review
Outsunny 6x8: good, 8.2/10
The Outsunny 6x8 is the cheapest real walk-in kit on our list: 51.5 sq ft, 4 mm polycarbonate, an aluminum frame on a galvanized steel base, a roof vent and gutters for $381.99 at Aosom on November 12, 2026. It is a fine starter greenhouse in a sheltered spot. Its published limits are low though: 8.19 lb/ft² and about 27 mph, and no warranty term is stated.
Buy it if
- Your budget is under $500
- You have a sheltered wall or corner
- You mostly start seeds and grow summer crops
Skip it if
- You get snow or exposed wind
- You want a warranty in writing
What $382 gets you
For $381.99 (Aosom's sale price on November 12, 2026, against $432.99), you get a 6.2 by 8.3 ft walk-in greenhouse: 51.5 sq ft, a powder-coated aluminum frame on a galvanized steel base, 4 mm UV-blocking polycarbonate panels, a sliding door, a roof vent and gutters. That is a real greenhouse for the price of a good lawn mower. Outsunny is Aosom's outdoor brand, so Aosom is where it is sold.
Where it is happy
The limits are written on the page, and they matter. Aosom lists a weight capacity of 8.19 lb/ft² and a wind rating of 12 m/s, about 27 mph, and recommends placing it against a sheltered wall and using ground bolts. In practice that means a protected patio or a corner of the yard out of the wind, and brushing off any snow. Treat it like a sturdy cold frame you can walk into, and it will make you happy.
Inside
The peak is 79.25 in, about 6 ft 7 in, and the sliding door is 23.5 in wide by 63.5 in high, slightly wider than the Palram 6x8 doors. The roof vent is 23.75 by 23.5 in. There is room for a bench on each side.
Price, returns and warranty
Aosom offers 30-day returns; return shipping may be charged on non-warranty returns. We could not find a warranty term on the product page, which our formula scores low. Assembly is DIY and Aosom publishes the manual.
What we like, and what to know
- $381.99, under half the price of the Palram 6x8 kits
- 4 mm polycarbonate panels, UV-blocking
- Galvanized steel base included
- Sliding door and a roof vent
- Rain gutters
The catch: Aosom lists a weight capacity of 8.19 lb/ft² and a wind rating of about 27 mph, and recommends a spot against a sheltered wall with ground bolts. No warranty term is stated on the page.
Outsunny 6x8 specifications
| Price | $381.99 at Aosom, checked November 12, 2026 (listed $432.99) |
|---|---|
| Footprint | 6.2' x 8.3' · 51.5 sq ft |
| Price per square foot | $7.42/sq ft |
| Panels | 4 mm polycarbonate panels, UV-blocking |
| Light | Not stated |
| Frame | Powder-coated aluminum frame on a galvanized steel base |
| Peak height | 6'7" (79.25 in) |
| Eave (wall) height | Not stated |
| Door | Sliding door, 23.5 in wide x 63.5 in high |
| Snow load | Aosom lists a weight capacity of 8.19 lb/ft² |
| Wind rating | 12 m/s (about 27 mph); Aosom recommends a spot against a sheltered wall and ground bolts |
| Ventilation | One roof vent, 23.75 x 23.5 in |
| Base | Reinforcing galvanized steel base included |
| Gutters | Included |
| Warranty | Not stated |
| Assembly | Assembly required; Aosom publishes the manual (845-059GY). |
| Delivery | Ships from Aosom; 30-day returns, return shipping may be charged on non-warranty returns. |
| Model / SKU | 845-059GY |
8.2/10, criterion by criterion
Each criterion is scored out of 10 from the published figure; anything not published scores 2. Full method.
| Price per square foot (dated, US) (20%) | 10.0/10 |
|---|---|
| Panels: insulation and thickness (20%) | 6.5/10 |
| Published snow load (15%) | 3.1/10 |
| Warranty (15%) | Not published: 2.0/10 |
| Published wind rating (10%) | 3.0/10 |
| Headroom (peak height) (10%) | 5.8/10 |
| Ventilation in the box (5%) | 6.0/10 |
| Base or anchoring in the box (5%) | 10.0/10 |
Price and where to buy
$381.99 at Aosom on November 12, 2026 (Aosom product page (Outsunny is Aosom's outdoor brand)). Sale price against $432.99 listed on Aosom.
Ships from Aosom; 30-day returns, return shipping may be charged on non-warranty returns. No warranty term is stated on the page we read.
Other kits to consider
Palram-Canopia Mythos 6x8
$889· Nov 12, 2026
6' x 8' · 49.1 sq ft · 4 mm polycarbonate
Palram-Canopia Glory 8x12
$4,349· Nov 12, 2026
8' x 12' · 95.6 sq ft · 10 mm polycarbonate
Head-to-heads: Palram Mythos 6x8 vs Outsunny 6x8.
Rankings with this kit: best greenhouse kits, best polycarbonate greenhouse kits, best walk-in greenhouse kits, best greenhouse kits for winter and snow, best greenhouse kits under $2,000.
Where these figures come from
Outsunny 6x8: questions
Is the Outsunny 6x8 greenhouse any good?
Yes for the money, in a sheltered spot. Its published limits (8.19 lb/ft², about 27 mph) are low, so keep it out of exposed wind and clear any snow.
Does the Outsunny 6x8 have a warranty?
No warranty term is stated on the Aosom product page we read on November 12, 2026. Aosom offers 30-day returns.
Outsunny 6x8 or Palram Mythos?
The Mythos if you can stretch to $889: twin-wall panels, higher snow and wind ratings and a 5-year warranty. The Outsunny if the budget is firm.
