This car was originally 16 studs long and partially designed by my brother in 2014.
About this creation
I recently lengthened the model and added bogies instead of two fixed axles. It is also build-able in yellow and light bluish gray instead of orange.
This model is quite ingenious for using set 60059 (Logging Truck) but on a train base, similar to set 10013, (open freight wagon) The logs are floating place, as they would be resting on the bottom of the car in real life. It was quite a pain to position them into place as seen here.
The logs are grouped separately in the LDD file, which were removed for this picture.