Mini Serre de jardin polycarbonate compacte

PrimeGreenhouses - Compact Polycarbonate Tunnel Greenhouse "The Compact" - Small Backyard Design, Galvanized Steel Frame, 4mm/6mm Anti-UV

4 mm (5/32 in.) Mild/Moderate Climates / 6.6 × 6.6 ft (43 sq. ft.)

$ 2,090

PrimeGreenhouses - Compact Polycarbonate Tunnel Greenhouse "The Compact" - Small Backyard Design, Galvanized Steel Frame, 4mm/6mm Anti-UV

4.8Trusted by growers across the US

Polycarbonate Greenhouse | The Compact

Grow your own food, built to last.

Storm-ready65 mph wind · 32 PSF

Built to outlast70% stronger, 99% UV blocked

Free shippingInsured, US-wide

10-year warrantyOn the polycarbonate panels

$ 2,299

$ 2,090

Save $ 209

Choose Polycarbonate Thickness 4 mm (5/32 in.)Mild/Moderate Climates 6 mm (1/4 in.)Cold/Harsh Climates

Choose Size (Length × Width) 43 sq. ft.6.6 × 6.6 ft 86 sq. ft.13.1 × 6.6 ftMost popular 129 sq. ft.19.7 × 6.6 ft 172 sq. ft.26.2 × 6.6 ft 215 sq. ft.32.8 × 6.6 ft 258 sq. ft.39.4 × 6.6 ft

Not sure? Check your state

Estimate your savings

Size guide · for reference only

Best for a small garden A compact growing space - herbs, salad greens and a few starts, close to the kitchen.

See what's included and what you need See all

What really makes the difference Compare

Secure checkout · Questions? Call or message our team

Discover The Compact, a bright and space-saving polycarbonate tunnel greenhouse with a practical growing area, ideal for small gardens and limited outdoor spaces.

One width (6.6 ft) and a 6.9 ft ridge height, available in 6 lengths - extendable later with the 6.6 ft Extension Kit.

43 - 86 sq. ft. Small

129 - 172 sq. ft. Medium

215 - 258 sq. ft. Large

Floor area (by length)

Length × Width	Floor area
6.6 × 6.6 ft	43 sq. ft.
13.1 × 6.6 ft	86 sq. ft.
19.7 × 6.6 ft	129 sq. ft.
26.2 × 6.6 ft	172 sq. ft.
32.8 × 6.6 ft	215 sq. ft.
39.4 × 6.6 ft	258 sq. ft.

Structure

Roof Design: Arched tunnel profile with a 6.9 ft ridge height, shaped to shed rain and snow and to stand up to wind.
Foundation: 3.9-inch-high metal base designed to provide optimal stability and prevent the polycarbonate panels from coming into contact with the ground.
Frame Profiles: Reinforced Omega profiles measuring 3.1 inches wide and 0.04 inches thick for enhanced structural strength.
Reinforced Arches: Every other arch is reinforced for increased resistance throughout the year, including during winter, with no seasonal disassembly required.
Ground Anchoring: Each arch is anchored approximately 13.8 inches into the ground for maximum stability.
Fasteners: The frame is assembled using M5 bolts to keep all components securely in place.
Sealing: Rubber seals protect the polycarbonate channels from dust, dirt, and debris.
Expandable Design: The greenhouse can be extended in 6.6 ft sections using the 6.6 ft Greenhouse Extension. Multiple extensions may be combined to suit your growing needs.

Polycarbonate Panels

Thickness: Choose between 4 mm (5/32 in.) twin-wall polycarbonate, ideal for mild and moderate climates, or 6 mm (1/4 in.) twin-wall polycarbonate, recommended for colder regions.
Panel Reinforcement: The panels are securely held in place with M5 bolts and 1.6-inch-diameter plastic washers.
Weather Resistance: Rated for 65 mph winds and 32 PSF of snow load (about 3 ft of snow). The panels are impact- and hail-resistant while providing effective thermal insulation.
Light Transmission: Translucent twin-wall polycarbonate provides approximately 85% light transmission. The panels are treated to resist yellowing and maintain lasting brightness and clarity.
UV Protection: Built-in UV stabilizers help protect your plants from direct exposure to harmful sunlight.

Base & Installation

Foundation: A 3.9-inch-high steel base is included.
Installation: Set up by two people in 2 to 3 days, with a detailed instruction manual included.
Doors & Windows: One front door and two manually operated windows - one at the front and one at the rear - provide optimal ventilation. Additional windows may be installed as needed.

FREE Damage-Proof Shipping

Every order ships free and fully insured directly to your door anywhere in the continental United States.

Standard Delivery — FREE
Estimated delivery: 4–6 weeks

Delivery dates are estimates and are not guaranteed. They represent the earliest expected delivery window based on current production and freight schedules.

Items are manufactured in batches and shipped from Europe. Production volume, ocean freight, port handling, customs clearance, and other factors may affect delivery times. If your estimated delivery window changes, we’ll notify you by email.

Returns & Refunds
You have 30 days after delivery to request a return, exchange, or refund in accordance with our return policy.

Set up by two people in 2 to 3 days, using common household tools. The complete step-by-step assembly guide is included for a smooth, hassle-free setup.

Download full manual (PDF)

10-year warranty on the twin-wall polycarbonate panels, covering impact resistance, UV protection, and yellowing.

5-year warranty on the galvanized steel frame against rust and structural defects.

Backed by our 30-day money-back guarantee and free, fully insured shipping across the continental United States.

Customer Reviews

★★★★★ Verified buyers

E Emily R.

★★★★★

Never had harvests this big before! Assembly was easy and everything grows so fast and bug-free. Love it!

M Michael K.

★★★★★

From my garden to my plate! Best homegrown Caprese salad ever! You can’t buy tomatoes with this kind of flavor in stores. Super sturdy greenhouse too.

B Brian T.

★★★★★

Bought this for my mom, she couldn’t be happier!

J Josh B.

★★★★★

My tomato plants grew like crazy this year. Setup took a weekend, but harvesting a full crate every week made it totally worth it. Best addition to my backyard hands down.

C Chris M.

★★★★★

Plenty of room for raised beds on both sides and in the middle. The greenhouse kept everything warm through our early spring Ohio frosts, so my crops popped up way faster than expected. Solid build and super functional.

J Jennifer S.

★★★★★

My neighbors can't believe how lush my plants are this early. Assembly was straightforward, and the structure has already held up to some strong spring storms. The inside environment is just perfect.

M Matt D.

★★★★★

Set this up with my wife over a weekend. Instructions were clear, framing is super sturdy, and all the panels fit perfectly. Can’t wait to get our first round of seedlings planted. Highly recommend!

Discover

Our greenhouses in motion

Living spaces designed to blend elegantly into your everyday life.

Trusted & Experienced 760+ Happy Customers

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Secure Checkout Shop with confidence - your transaction is fully protected.

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A Partner You Can Trust Dedicated support and a 10-year warranty - your peace of mind, guaranteed.

✦

Trusted & Experienced 760+ Happy Customers

✦

Secure Checkout Shop with confidence - your transaction is fully protected.

✦

A Partner You Can Trust Dedicated support and a 10-year warranty - your peace of mind, guaranteed.

✦

Trusted & Experienced 760+ Happy Customers

✦

Secure Checkout Shop with confidence - your transaction is fully protected.

✦

A Partner You Can Trust Dedicated support and a 10-year warranty - your peace of mind, guaranteed.

✦

Easy to install

Set up in 2 to 3 days, by two people

No expertise needed. Your greenhouse comes with illustrated step-by-step instructions and only requires common household tools.

2 people minimum

2 to 3 days

Common tools only

Step 1

Prepare the base

Level the ground, place the metal base plate and secure the arches to the foundation.

Step 2

Assemble the frame

Click and screw the frame together, place the stakes in the ground, then fill the holes and pack the soil firmly.

Step 3

Install the panels

Polycarbonate panels slide into the profiles and are held in place by the sealing joints.

Step 4

Add door & windows

Hang the door and install the two roof vents. Your greenhouse is ready to grow.

Built to last

Engineered stronger. Designed to endure.

Thicker panels, heavier steel, and an arch that sheds wind and snow — here's what that means for your garden, season after season.

50%

Stronger frame

Heavy-duty galvanized steel tubing with reinforced Omega profiles delivers 50% more rigidity than the lightweight frames used on standard hobby greenhouses, built to handle wind, snow loads, and years of use.

70%

Stronger panels

Twin-wall polycarbonate panels are 70% more impact-resistant than single-wall. UV-coated, insulating, and built to stay clear for years.

65 mph

Weather tested

The arched structure naturally deflects wind and sheds snow. Rated for 65 mph gusts and 32 PSF of snow load (about 3 ft of snow), grow through any season.

Why Prime Greenhouses

What really makes the difference

A tarp or thin polycarbonate greenhouse

Tarp or thin polycarbonate, fragile and flimsy

Lightweight frame, sensitive to wind and snow

Yellows and weakens over time

Short warranty, 2 to 5 years

Little or no after-sales support

Accessories sold separately

Prime Greenhouses

Our polycarbonate greenhouses

Twin-wall polycarbonate panels in 5/32" or 1/4" — impact-resistant, UV-coated, and built to stay clear for years

Built for winds up to 65 mph and 32 PSF of snow load (about 3 ft of snow)

Anti-yellowing treatment, built to last for years

10-year polycarbonate warranty and 5-year steel frame warranty

Easy assembly, illustrated guide and real support

Free shipping and 30-day returns

How It Works

From Checkout to Your Backyard, Hassle-Free

A simple, guided journey, from the first click to the moment you start enjoying it.

You order online

Secure checkout in just a few clicks. Have a question? We'll answer it before you even buy.

We prepare and ship it

Your greenhouse is carefully packed and shipped free, anywhere in the US.

You enjoy your greenhouse

Set it up and make the most of it: a true living space you can use all year round, whatever the season.

Need help choosing?

Find the right panel for your state

Tap or hover your state to see the recommended polycarbonate thickness.

5/32" (4mm) - Mild to warm climates

1/4" (6mm) - Cold or demanding climates

General guidance only - always consider your local microclimate, elevation, and exposure. Unsure? Contact our team before ordering.

Before you order

What's included — and what to bring

In the box

Galvanized steel frame

Polycarbonate panels

Doors & roof vents for your model

Bolts, screws & connectors

Base frame & structural supports

Detailed installation manual

What tools do I need? (6 items)

Tools you'll need (not included)

5/16" wrench (hex or open-end)

Phillips screwdriver or drill

Shovel for anchoring

Spirit level

String, to check diagonals

Utility knife, for panel trimming

Built for every climate

From -40F to 115F, designed to keep doing its job whether you're in Minnesota or Mississippi.

-40F 115F+

Tested range

Cold climate

Grow through the winter

The double-wall panels trap a layer of air between them, like an insulated mug for your plants. That holds heat in and can cut heating costs by up to 40%, so you can keep greens going well past the first frost and through the coldest months.

Hot climate

Works in the South, too

Our polycarbonate panels block 99% of UV and diffuse harsh light, so plants get even, gentle sun instead of scorching. The panels stay clear and intact for years, with no fading or brittleness. Two manual windows and an optional auto vent keep temperatures stable when it's 115F outside.

Grow your own food — No pesticides, no grocery runs — just fresh produce, year-round.

How much will your greenhouse save you?

Pick your model, set your grocery budget, see your savings instantly.

The Compact - 43 sq ft 6.6 x 6.6 ft

$2,090

The Compact - 86 sq ft 13.1 x 6.6 ft

$2,349

The Compact - 129 sq ft 19.7 x 6.6 ft

$2,690

Monthly grocery budget $120

$50 $300

Your estimated savings

Savings per year

Savings over 10 years

              
              Pays for itself in
            
-

Pays for itself in -. Pure savings after that.

* Based on average US grocery spending on produce (USDA/BLS, 2024). Estimates only.

From Our Customers

Our Greenhouses, In Your Backyard

Thousands of gardens equipped across the US. Here are a few of them.

Greenhouse installed at a customer location

Our story

We started building greenhouses because the ones we bought kept falling apart

Today, we design robust greenhouses built to withstand the toughest conditions and stand the test of time.

Every greenhouse is the result of rigorous work, using high-quality materials that combine strength and beauty, for hobby gardeners and seasoned growers alike.

Read our story →