Wind and Watertight. Our open-side storage containers are created to face up to the elements. They can be wind and watertight, giving safety to your useful possessions towards severe weather conditions. Can I modify the 20ft delivery container Based on my certain requirements? However, Pelicancontainers doesn't provide any container customization. https://20ftstoragecontainers60370.bloggosite.com/33000973/20ft-storage-containers-fundamentals-explained