Abstract: A structure wall includes first and second cooperating building panels. The first building panel includes first and second skins forming respective first and second opposed panel faces and a first foam filled core between the first and second skins. A portion of the foam filled core defines a groove that extends substantially continuously across the first building panel. A slotted rail extends substantially continuously across this groove. The second building panel includes third and fourth skins forming third and fourth opposed panel faces. A second foam filled core is provided between the third and fourth skins. The second foam filled core has at least one latch which may be extended from the panel to selectively engage the slotted rail at substantially any position along the rail. In this way, it is possible to provide substantially infinite adjustability of the position of the second building panel relative to the first building panel while also providing a secure and reliable connection therebetween.