Livestock shipped by rail required frequent rest and water stops, so structures like these were placed at intervals along the rail lines in all parts of the country. This is an accurate scale representation of a typical railway stock pen as used from the 1800’s until the 1970’s.
If you want the look of unpainted weathered wood, it is advisable to stain the parts before assembly and gluing, as the glue may keep the stain from covering completely. If you are painting the model this may be done after the kit is fully assembled using brush, airbrush, or spray cans. Board fences were typically whitewashed; some post-assembly weathering may also be desired.
Take your time and test-fit parts before final assembly. Allow two or three evenings for the assembly and painting of this model.