Best Poly Cover for Greenhouse: Clear Tarp Options for Year‑Round Growth
Answering the buyer’s search intent, this guide compares top poly covers designed for greenhouses and cold frames. These clear, UV‑resistant tarps and films help maximize light transmission, protect against weather, and support consistent microclimates. Best for hobby gardeners, small farms, nurseries, and backyard greenhouses seeking durable, low‑maintenance coverings that still let in essential sunlight.
Overview of the chosen products aligns with common needs: long‑lasting clarity for even light distribution, robust edge reinforcement for wind exposure, and simple installation. The table below provides a quick snapshot to help you compare at a glance.
| Product | Size (approx) | Material/Key Feature | Best For |
|---|---|---|---|
| Ansgery 16 Mil Greenhouse Cover (Clear) | 8×12 ft | 16 mil, UV resistant, reinforced edges | Small to mid‑sized greenhouses |
| ANGAR 16 Mil Clear Greenhouse Tarp | 6×8 ft | Three‑layer, UV/Waterproof, rust‑proof washers | Compact setups, easy replaceable tarps |
| ANGAR 16 Mil Heavy Duty Clear Greenhouse Tarp | 10×20 ft | 16 mil, reinforced edges, aluminum washers | Medium to large greenhouses |
| BPS Greenhouse Replacement Cover | 20x10x7 ft | 140 GSM, insulated, roll‑up windows | Walk‑in tunnels, year‑round climate control |
| Tapix 10′ x 25′ 6 Mil Plastic Sheeting | 10×25 ft | 6 mil, heavy duty, multipurpose, greenhouse use | Budget, DIY covers, temporary enclosures |
Ansgery 16 Mil Greenhouse Cover, Clear Plastic Tarps
The Ansgery 16 mil clear tarp uses a woven, double‑coated three‑layer polyethylene construction for tear resistance and UV protection. It provides high light transmission and helps maintain even temperatures inside a greenhouse or nursery. Best for small to medium greenhouses and long‑term outdoor use, especially where Iight quality and durability matter.
- Best for gardeners needing durable, clear coverage that resists UV damage.
- Better for extended outdoor use due to reinforced corners and grommets.
Limitations: the product name shows “Fansgery” in parts of the description, which might reflect a branding inconsistency. Consider verifying exact edge reinforcement if extreme conditions are anticipated.
Strong Camel Replacement Cover for Outdoor Grow Houses
Strong Camel offers a 20′ x 10′ x 7′ replacement covering designed to form a large growing space. The cover is a transparent PE film that protect plants from harsh weather while preserving light. It features eight roll‑up side windows for ventilation and temperature management, plus a zipper door for easy access. Best for mid‑sized, walk‑in style greenhouses where climate control and pest exclusion are priorities.
- Best for expanding growing space with seasonal ventilation needs.
- Better for growers who want integrated roll‑up windows to manage airflow.
Caution: The product listing notes a frame not included, so ensure you have a compatible frame or structure to install this cover.
ANGAR 16 Mil Clear Greenhouse Tarp with Grommets
ANGAR’s 16 mil clear tarp features a three‑layer construction with grommets and reinforced edges. It is designed for light transparency, waterproofing, and long‑term outdoor exposure. Each 35‑inch hole includes aluminum washers, with wrapped corners for extra durability. Best for gardeners needing a reliable, all‑season cover that can withstand wind and rain without sacrificing light for plants.
- Best for ongoing outdoor coverage with easy installation via grommets.
- Better for larger greenhouses that require durable edge reinforcement.
Limitation: While designed for durability, the 6×8 ft size may not fit larger structures without multiple panels or seams. Plan for overlaps if covering extended areas.
ANGAR 16 Mil Heavy Duty Clear Greenhouse Tarp
This ANGAR tarp is built for larger greenhouse projects, offering the same 16 mil clear film with three layers and a reinforced edge. It emphasizes light permeability, UV resistance, and waterproof performance, with nylon rope reinforcement and rust‑proof washers for secure anchoring. Best for medium to large greenhouses that require long‑lasting, weather‑proof coverage.
- Best for larger installations needing heavy‑duty protection.
- Better for environments with strong sun, wind, or frequent precipitation.
Caution: The large panel size requires appropriate framing or anchoring to maintain tension and prevent sagging in windy conditions.
BPS Greenhouse Replacement Cover (20′ x 10′ x 7′)
The BPS replacement cover is a 140 GSM PE sheet designed to insulate and shield plants. It includes reinforced seams, a close‑fit design for microclimate control, and a straightforward setup for walk‑in tunnels. Best for growers seeking dependable insulation and a stable microclimate with easy sealing and venting options.
- Best for enclosed environments where humidity and temperature must be managed.
- Better for long‑term use due to tear resistance and reinforced seams.
Limitation: FRAME not included; ensure compatibility with your existing greenhouse frame to secure the cover properly.
Buying Guide: Poly Cover For Greenhouse Essentials
What size should you choose? Measure your greenhouse accurately and consider future expansion. Options range from small 6×8 ft tarps to larger 20×10 ft covers. For walk‑in tunnels, prioritize covers with reinforced edges, rust‑proof hardware, and robust grommets for secure anchoring.
Which features matter most? Light transmission, UV resistance, and waterproof performance are critical for plant health and material longevity. A three‑layer PE structure often provides better tear resistance and stability in wind. If you need ventilation, look for covers with integrated roll‑ups or multiple panels.
Edge and installation considerations. Edge reinforcement with nylon ropes and corner protection reduces wear from wind and handling. Aluminum washers and rust‑proof hardware help maintain a tight seal. Ensure you have the right frame, clips, and anchors for your chosen cover.
Durability versus price. Thicker mil ratings (e.g., 16 mil) typically last longer under harsh conditions but may cost more upfront. For seasonal use or budget builds, a 6–8 mil option can still provide effective protection when installed with care and replacement in mind.
Frequently Asked Questions
- What thickness is best for a greenhouse poly cover? A thickness of 16 mil offers strong durability and good light transmission, while 6–8 mil can be sufficient for light duty or temporary setups. Choose based on climate, wind exposure, and how long you plan to use the cover.
- Will these covers reduce light to plants? Most clear greenhouse tarps are designed to maximize light transmission; however, some materials may have minor haziness due to anti‑drip treatments. Look for high light transmission ratings to minimize shading.
- How do I install a greenhouse tarp with grommets? Use ropes or bungee cords through the grommets, attach to sturdy stakes or frame posts, and check tension at multiple points to prevent sagging.
- Are these covers weatherproof year‑round? Most are designed to be waterproof and UV resistant, offering protection in rain, sun, and temperature fluctuations. For extreme weather, ensure structural support and consider additional wind shielding.
- Can I reuse these covers after winter? Many of these tarps are designed for long‑term use but check for UV wear and edge integrity each season before reusing. Damaged areas should be repaired or replaced.
- Do replacements require a frame? Some covers are sold as frame‑not‑included, so you may need an existing greenhouse frame or a compatible standalone structure to install them properly.