A head to head horse trailer is an old design that can be built as either a 4 horse or 6 horse gooseneck trailer. It has 2 or 3 horses at the back of the trailer in forward facing stalls and 2 or 3 horses towards the front of the trailer in rear facing stalls. The center aisle is accessed by 1 or 2 ramps. The modern Safetack Reverse 4 Horse Slant Load trailer is a much safer option.