We sometimes spend a lot of time detailing loads
for our open-top cars. One such load is
lumber.
The image linked below shows workers stacking
lumber onto a flat car - the process is not yet done - the vertical
supports for the load are in place but not yet fully secured. We cannot see much
of the flat cars below, only a tiny bit of the flat car is visible at the
extreme lower left of the image, but the two workers closest to the camera are
standing on a pile of lumber that is loaded onto the flat car.