Adding the top rail
After applying glue, the top rail was fitted in place in between the two stiles and with the channel over the top of the lattice.
The two side stiles were then firmly clamped against the top rail.
The top rail was then nailed to the side stiles by way of angling (toe-nailing) nails through the top edge of the top rail into the stile,
two altogether per gate: one at each end.