Many dog lovers build their dog crates for their beloved animals. Example of a dog cage: The dog cage can be made of painted pine wood that is resistant to low temperatures and weather. The roof must be inclined, with the edges sticking out, to protect the dog from cold air currents and rain. The cage can have four high legs to protect the animal from hard soil moisture and to ensure good air circulation. The legs of the pen can be made of plastic to withstand more water. As you can see, possibilities are endless; it is up to each owner to choose what he sees fit.