If there was any doubt how well built the Nokia Lumia 900 is, the above video should ease anyone's concerns over build quality. The unibody design coupled with Corning's Gorilla Glass make the Lumia 900 a very solid Windows Phone. Solid enough to drive nails.
The engineers who tested the durability of the Lumia 900 did the same test on the Lumia 710. The 710 held up just as nicely as the 900.
Now for the obligatory disclaimer. While the Lumia 900 clearly survives the torture test in the video, we don't recommend you using your Lumia 900 to build a deck, repair the back steps or deliberately abuse your Windows Phones. Such activity would likely void your warranty.
Chime in below in the comments if you're Nokia Lumia 900 has survived near death experiences.
Source: Conversations Nokia