Best Greenhouse Clamps of 2025

"I purchased these to hold plastic sheeting on my garden tunnels. Although I knew they would be slightly too large, I added thin strips of styrofoam for a snug fit, and it worked perfectly! I’m very pleased and ordering more for my longer tunnels. So far, they have held up well through rain and keep the hoops in shape."

"These fit perfectly with the shade cloth I used on PVC pipes over my raised beds. They held up even on a windy day, so I ended up buying them twice!"

"I bought these to keep bird netting over my strawberry arches. Unfortunately, they were too large and couldn't hold the netting tightly. If they were smaller, I would have rated them a 5. Overall, good idea but wrong size."

"I absolutely love these clamps! They were a bit tricky to snap on at first, but they became easier with use. They hold up well under the sun and keep my fabric in place. I’ve used them with both 1/2 PVC and 1/2 EMT hoops. Just a heads up, they need a little more effort with the metal hoops. Overall, a great product that I can use year after year!"

"I love this product; it’s super strong for my greenhouse, even on windy days!"

"Although some clamps required a bit of maneuvering, they are doing a great job at holding the greenhouse cover in place, even with strong gusts of wind. I just wish I had discovered this product sooner!"

"I found these clips to be very helpful in keeping my netting secure over the hoops in my garden. They are sturdy and easy to pinch open."

"Although it was a bit challenging to open them for installation, I managed to get them on the pole. They hold everything really well, and I believe they will be quite beneficial as time goes on."

"I learned the hard way to read reviews before purchasing. These clips are useless for standard pipes in greenhouses. They don’t have a spring mechanism and only fit very thin tubes. I would not recommend them."

"I bought these clips for bird netting around my apricot and almond trees. They worked fantastic, holding the gathered netting to branches without causing any harm. Even with 45 mph winds, the clamps remained secure. They are a great value, and I plan to buy more!"

"These clips have been really helpful for me! I used them to secure mesh over my plants to keep Japanese Beetles out and to hold rope for my pole beans. They have a good grip and stay put, which is exactly what I need."

"I had high hopes for these clips for my low tunnels and garden netting. They are lightweight with decent grip, but there’s a design flaw: the edges are sharp and could cut into my materials over time. If they fixed that, they would be great!"

“I purchased the 1/2" version of these clips, and they've worked fantastically on our greenhouse and cold frames made with 1/2" EMT conduit. I’ve even used them on T-posts, and while they don’t fully wrap around, they grip securely on the protrusions. They accommodate multiple layers of materials, like our poly-spun frost blanket and 4mil sheet plastic, without any issues. The high-quality ABS plastic and strong spring require some muscle to open, but that's manageable. Overall, I'm thrilled and plan to order more, including larger sizes.”

“Using these clips on my small greenhouse has been great. They fit perfectly over 1/2 PVC pipe and are strong enough to hold an extra tarp layer. Although I’m concerned about potential ice and snowstorms collapsing the greenhouse, I trust these clips will hold up well in winter. Good product overall.”

“I’ve been using these clamps to secure the cover over my garden during freezing nights. After building a PVC frame, I found these clamps to work exceptionally well, even in windy conditions. They also keep my frost cover neatly rolled up, preventing it from flapping around. I can easily clip them to my plant watering system pipes or pots. While they might be a bit tough to open for those with hand strength issues, I appreciate that they don't have teeth, so they won’t rip my frost covers. I was surprised to find I used every single one of them, and I'd definitely recommend them.”

"I've purchased three 120-piece sets now because of their wonderful versatility outdoors. I've used them to clip Christmas lights and frost cloth for winter protection. They show no signs of rust, even after being left out in the rain and snow. The clips have an amazingly secure grip, and they're easy to open, even for me. Just a tip: be careful when you're in a hurry, as I had a little accident with my finger once! Overall, I love these high-quality stainless steel clips!"

"This is my fourth package in two years, and I keep finding new uses for these clips. They're much more convenient than the Velcro I used before and can even hold heavy tomato vines and other unruly plants. I highly recommend them for anyone looking for a reliable solution in the garden!"

"These clips are truly great! I've been using them for all sorts of things, even as clothes pins. They're metal, very well made, and extremely sturdy. I use them in my garden to hold shade cloth around my plants when the sun gets too hot. They're lightweight, easy to use, and fit everything perfectly!"

"I found these clips to be very sturdy and they work perfectly for my needs."

"I really like the size and feel of these clips. They are smooth, easy to use, and even though I bought them for my garden, I can use them for other things too!"

"These clips have held my plastic coverings really well, even in high winds. I just hope they don't rust, but they hold much tighter than the plastic ones I was using before."

"I found that attaching the end of the row cover material was a breeze with these clamps. They keep everything taut and in place, which is just what I needed!"

"I purchased these clamps for my RV skirting project, but I was disappointed by their flimsiness. They broke easily during installation. However, once they were on, they did the job well enough to earn a 3-star rating from me."

"Using these clamps, I managed to keep the tarp secure on my outdoor structure. They attached easily and stayed on during movement, but when strong winds hit, most of them popped off like popcorn. Still, they’re great for the ends where the tarp is less affected."

“I got the small size for my 1/4-inch netting support poles. The clamps that came with the poles were junk. These are great! They hold tight, open and close easily, and are perfectly sized for a small pole. The thick plastic and strong springs indicate they will last a while. I’m not concerned if they eventually fail or rust. They work great and are at a good price. After 6 weeks, I've used these outside for my frost blanket in all weather conditions, and there’s no rust on the springs. I’m very satisfied.”

“I’ve purchased 3 sets and highly recommend these for garden use. The clips are strong, secure, and easy to use, gripping tightly. I’m using them with frost cover on DIY 1/2 PVC hoops, and they are the only product I've tried that actually works. I’m not a fan of the bright green color, but it does make them easy to find if I drop one!”

“These clamps survived 53 miles per hour wind! They are sturdy, function great, and have a solid grip. They are also very easy to remove, and the price is right.”

"I find these clips fantastic! We use them on our raised beds to secure shade cloth and netting. They hold everything in place without damaging the fabric."

"These clips are great for various tasks. I even keep a few in my pocket while doing chores. They're much sturdier than the typical clips."

"After battling wind in my garden and losing several plants, I decided to get these clips. I'm so glad I did! They helped me secure everything through strong storms."