






🌿 Grow smarter, not harder — your greenhouse’s new power panels!
The Sinimaka 15 Pack Polycarbonate Greenhouse Panels are durable, twin-wall sheets measuring 4' x 2' x 0.16'', designed to withstand extreme weather from -40°C to 120°C. Offering 89% light transmission with 99.9% UV protection, these lightweight, easy-to-install panels provide superior insulation and impact resistance, making them ideal for extending growing seasons and versatile outdoor applications.


















| Best Sellers Rank | #17,753 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #15 in Greenhouse Covering Plastic |
| Brand | Sinimaka |
| Color | Translucent |
| Customer Reviews | 4.4 out of 5 stars 109 Reviews |
| Item Thickness | 0.16 Inches |
| Item dimensions L x W x H | 47.24 x 24 x 0.16 inches |
| Material | Polycarbonate |
| Shape | Rectangular |
A**L
Great greenhouse panels
Come exactly as described great instructions on care. My family bought ours to enclose our screened in porch in for the winter. Well worth the money.
J**S
Perfect for a back door covering
These worked perfectly for our new deck. Wanted something lightweight but transparent for sunshine. We copied the greenhouse effect & can't be happier. We've had a few snowfalls & it is holding up. We use a roof rake to pull off the snow.
C**S
Great for keeping a screened in porch warmer in winter time!
Great product to help keep our screened in porch warm for our cats during the winter. It has made a big difference. I did leave a corner area without the panels to allow ventilation during the day time and am using curtains and have a thermal panel ordered to put up in the corner to really help when it gets really cold. We bought the H strips to link them together and he dust proof tape to put on top and used duct tape in the bottom. They are screwed in so we can remove them in the summer time.
M**L
It's a great price but not 2' wide. Nicely flexible.
My greenhouse came with 2 foot wide panels. These panels are about 23 inches wide so I'll have to splice the panels. You can still purchase 2 foot panels from home improvement centers but they are around $40 per panel. My option is to try using greenhouse tape and silicone caulk. Maybe I can make these $130 panels do the job, instead of spending $500. Time will tell if it works or if it leaks. I expect to lose some sunlight but the old panels had deteriorated significantly in the 5 years since the green room went up. They got brittle due to sunlight and a minor hail storm punched holes in the surface, plus etching on the surface. I'm hoping these panels have a longer life. I expect the tape to yellow in 3 or 4 years.
C**X
Good quality, shipped safely.
Very happy with these panels, they were a great price Compared to local big box store. Also they are the medium grade 1/4”, not the thin stuff. But they are hard to get your hands on they seem to sell out fast and are always on back order. What is surprised that 8 – 4 x 8 sheets came through perfectly no damage. Going to use them to make panels to close in a porch in the winter for the stray cats.
K**E
Great bargain
Perfect for the walls on my chicken run. Hopefully, it will keep the rain and wind from blowing on them during the winter. Easy to put up and the film came off easily.
B**M
Very durable.
Great product! Used these to completely cover all sides and roof of a 8x8 greenhouse. Easy to cut using table saw or circular saw. Survived small hail this past spring. Definitely recommend.
A**I
Good value
They work great for my purpose. The shipping box was damaged and so we're a few pieces.
Trustpilot
1 month ago
3 weeks ago