Century Spring 4002 Swing Extension Spring (2 Pack)

I installed a wooden porch screen and wanted a set of springs to relieve pressure and be more comfortable when sitting on the swing. But, I did not want stretch springs because these can fail with too heavy of a weight. This is where the compression spring works great. It does bottom out with a high weight, but that is part of the design. It is easy to install but you do have to be able to pinch the shuttles of the spring together to push them through the spring when installing. You may need to look it up online to see what I'm describing. It's not hard. It just takes a small amount of effort. Make sure you measure the length of the spring and add this length into the calculation when you are getting your chain length measured for your swing. I also recommend that you find a rafter or ceiling stud and install the eye bolt directly to the stud. The spring would then attach to the eye bolt. The springs work great and the swing is comfortable to sit on.

Works great

These springs add a very nice cushion when sitting down on the swing. The ones I received were rated (printed on package) for 300lb each spring NOT 325lb as stated in Amazon description. They were the 4002 model too. Not a big deal for us, can seat my entire family on a set of these! I have had about 550lb of people on the swing before, and it's about a 100lb 5ft cedar swing. Their obviously wasnt any additional spring slack or cushioning at that weight, but they held up fine. They're rated much higher then the best swing hook lags I could find at home depot when I initially installed (200lb per hook). The springs here were also much cheaper then the only pair there.

Worked great in conjunction with the shade sail hardware.

I am 220 and the swing is ~40 and these springs seem to compress most of the way. However, they make the swing much more comfortable and easy to get in and out of. Since it doesn't compress all the way with me, it works for me. I just expected a little more resilience.

I have had a swing near my front door for 25 years and never thought of putting these springs on it. Since the reviews were so good and the price so low, I thought I'd try them. Well I am totally and absolutely pleased with my purchase. The springs are very strong, definitely can handle the big boys. Having some spring action does make the swing more comfortable. I sprayed it with WD40 just to make sure it would be smooth and quiet, and it did the trick. I wish I bought these springs years ago.

I wasn't paying very close attention and thought these were extension springs. Lucky for me, they are actually compression springs and work even better than I had hoped with the wife's hanging basket chair. The original 200 pound extension spring was sufficient for her but not enough for me.One of these springs is enough so I can use the chair now too.Bonus is knowing the springs cannot stretch and break. At most they will compress to the point there they are flat (no more give).

Part of my decision in ordering this particular set of springs was the 325lb rating per spring. They are quite large and that was a liberal weight rating compared to others I have seen.Installed last night, adjusted the height for the large springs after installation, everything looks great....... ready......have a quick sit to try them out... and...... yes they made a big diference when loading the swing which is exactly what I was looking for, BUT, at 250lbs both springs were completely collapsed when I was sitting. Now with a combined weight rating of 650lbs, I would have expected some travel to be left over when my wife sat down but there was none.So, I am keeping the springs and they are a nice addition but I would beware of the weight rating if our family happens to near it, or as in my case less than half of it!