I know this is a meme /c, but for real, I bought this exact same product a while back. If this is your photo, just be careful about what you put on it. Mine lasted 2 months with a grape vine on it before it collapsed.
Lol. The wife wanted something decorative and liked how it looked. Caveat Emptor, and all that I suppose. I knew I was buying from a less-than-quality source
One definitely should use solid structures, metal or wooden. The damned thing cost ~10$ and I didn't have time to build a proper support structure at the moment. I meant to use it only as a temporary solution, which I forgot when everything was fine.
The design of the arch itself wasn't the problem. The interconnecting pipes were only 1-2mm thick, so there was no way it could possibly support the weight of a flourishing grape vine.
It was marketed as a "rose arch". I guess it could've handled this purpose without any problems.
Just wanted to say we have one in our yard that has been there for almost 20-years. Previous owner left it to rot. I moved it close to some wild hops and they are covering it completely after two years. Still standing!