YourGreenhouses Arrow Greenhouse 8x13
$2,810· Nov 12, 2026
8.2' x 13' · 106.6 sq ft · 6 mm polycarbonate

128 sq ft under 6 mm panels and a steel arch rated for 32 psf of snow, for $2,765.
At a glance: size, peak height, warranty
Free US shipping; pre-orders are built in batches in Europe and delivered from mid-January, in-stock units sooner at a higher price (YourGreenhouses).
This is the value pick of the serious kits: 128 sq ft for $2,765 (pre-order, November 12, 2026), so about $21.60 per square foot, on a 3.07 in galvanized steel arch rated for 32 psf of snow and 65 mph of wind. It is also modular, so you can add 6.5 ft sections later. The catch is the low 6 ft 7 in peak, plus the pre-order wait, extra-cost roof vents and no base in the box.
At 9.84 by 13 ft, this tunnel covers 128 sq ft. That is room for two long raised beds and a path, or a propagation bench plus a summer crop of tomatoes and peppers. At $2,765 for the 13 ft length on November 12, 2026, it works out at about $21.60 per square foot, the best ratio among the three steel tunnels on our list rated for 30 psf of snow or more. YourGreenhouses calls it the "World's Most Popular" polycarbonate greenhouse; the name is theirs, the numbers above are what we checked.
The modular design is the quiet bonus. YourGreenhouses sells the tunnel in 6.5 ft steps, so you can start at 13 ft and add a section once you have filled it (you will).
The arch is 3.07 in heavy-duty galvanized steel, rated by the brand for 32 psf of snow (about 3 ft) and 65 mph of wind. The panels are 1/4 in (about 6 mm) double-wall polycarbonate with 99% UV blocked, and YourGreenhouses rates them from -4°F to 104°F. For a northern backyard, that is a combination you usually only see in much pricier kits.
Here is the trade-off. A wide, round arch keeps the structure strong and the price down, but it peaks at 78.7 in, 6 ft 7 in, and comes down low at the sides. Most people stand comfortably in the center path; anyone tall will be ducking near the beds. If headroom matters, the Arrow from the same brand gives 8 ft at the peak for $45 more, on a narrower footprint.
Ventilation is a front door and one back window, so add at least one roof vent ($95 each) if you get hot summers. No base is listed in the kit contents. And the $2,765 price is a pre-order with delivery estimated mid-January to March; an in-stock unit at the same length was $3,072.21. US shipping is free, and the warranty is 10 years on the frame and five on the panels, with a $260 lifetime add-on.
The catch: The peak is only 78.7 in (6 ft 7 in), so tall gardeners duck near the sides. The $2,765 price is a pre-order delivered from mid-January, roof vents are $95 each and no base is listed.
| Price | $2,765 at YourGreenhouses, checked November 12, 2026 |
|---|---|
| Footprint | 9.84' x 13' · 128 sq ft |
| Price per square foot | $21.60/sq ft |
| Panels | 1/4 in (about 6 mm) double-wall polycarbonate, 99% UV blocked |
| Light | Diffused light; 99% UV blocked (YourGreenhouses) |
| Frame | 3.07 in heavy-duty galvanized steel frame, arched |
| Peak height | 6'7" (78.7 in) |
| Eave (wall) height | Not stated |
| Door | One front door and one back window |
| Snow load | 32 psf, about 3 ft of snow (YourGreenhouses) |
| Wind rating | 65 mph (YourGreenhouses) |
| Ventilation | One back window; roof air vents are an option at $95 each |
| Base | No base listed in the kit contents |
| Gutters | Not listed |
| Warranty | 10-year limited warranty on the steel frame, 5 years on the polycarbonate panels, 30-day money-back guarantee; a lifetime warranty add-on costs $260 (YourGreenhouses). |
| Assembly | Two people over a weekend, per YourGreenhouses; parts labeled, manual online. |
| Delivery | Free US shipping; pre-orders are built in batches in Europe and delivered from mid-January, in-stock units sooner at a higher price (YourGreenhouses). |
| Model / SKU | WMP-FUL-0400X0300 |
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%) | 7.2/10 |
|---|---|
| Panels: insulation and thickness (20%) | 7.5/10 |
| Published snow load (15%) | 9.2/10 |
| Warranty (15%) | 7.5/10 |
| Published wind rating (10%) | 8.0/10 |
| Headroom (peak height) (10%) | 5.7/10 |
| Ventilation in the box (5%) | 6.0/10 |
| Base or anchoring in the box (5%) | Not published: 2.0/10 |
$2,765 at YourGreenhouses on November 12, 2026 (YourGreenhouses product page (13 ft length, pre-order)). Pre-order price for the 13 ft length, delivery estimated mid-January to March; an in-stock unit at this length was listed at $3,072.21. Roof vents ($95 each) are extra.
Free US shipping; pre-orders are built in batches in Europe and delivered from mid-January, in-stock units sooner at a higher price (YourGreenhouses). 10-year limited warranty on the steel frame, 5 years on the polycarbonate panels, 30-day money-back guarantee; a lifetime warranty add-on costs $260 (YourGreenhouses).
$2,810· Nov 12, 2026
8.2' x 13' · 106.6 sq ft · 6 mm polycarbonate
$2,499· Nov 12, 2026
8' x 12' · 96 sq ft · 4 mm roof, 0.8 mm walls
$4,349· Nov 12, 2026
8' x 12' · 95.6 sq ft · 10 mm polycarbonate
Head-to-heads: YourGreenhouses Arrow vs YourGreenhouses Polycarbonate, YourGreenhouses Polycarbonate vs Bloomcabin High Tunnel, YourGreenhouses Polycarbonate vs Outsunny 8x16.
Rankings with this kit: best greenhouse kits, best polycarbonate greenhouse kits, best walk-in greenhouse kits, best large greenhouse kits (100 sq ft and up), best greenhouse kits for winter and snow.
Every price was read on November 12, 2026 on the maker's or dealer's own page.
Eight criteria, the same for every kit. What isn't published scores low.
Tell Megan Hollis your yard, your winters and your budget; she answers.