Modular Factory Kit 2 Pale Brown brick One Floor Factory/Warehouse Extension
Another building block in the MFK2 series, this single storey block with four different faces can be used either on its own - as a yard office, perhaps - or combined with other units. All four faces are visible between the pair in the screenshot. Some examples of different combinations can be found in my 'Buildingz frae Scotland' thread in the Freeware Announcements section of the Trainz Discussion Forums.