This 3D model was originally created with Sketchup 13 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 A basic door for use on ships and marine applications. It includes a window and a handle. This kind of hatch might be found on a ferry, passenger ship, pleasure craft, fishing boat etc. Naval ships and large cargo ships would likely have a more sturdy hatch without the window.