The Waverley show is in its 98th year, and its horse events will span two days this year due to an agreement reached with the Hāwera show organisers.
Riders said their horses didn't like being near the sideshows at the Hāwera Show on November 23 - so those events will be held in Waverley and riders will move on to Hāwera for events on November 24.
There's no camping at Waverley's Dallison Park, and 25 riders and horses will stay overnight at the Waverley Racecourse stables.
"It's the most we've ever had," Morrison said.
Jumping will begin at 9am on November 19, and gates to the rest of the show will open at 10am. It will probably finish about 3pm.
Waverley's fire brigade will be there, and Roadsafe Taranaki is bringing a free climbing wall. There will be dog trials, food, flower and vegetable competitions and all manner of stalls - from soap and crystals through to farm equipment.
The ground usually allocated for fencing competition will be taken up by the stalls.
"We are basically full. I have had to turn people away," Morrison said.
The show is popular with trade exhibitors because it happens on a weekday when staff are working, and because stall space is cheap. It's also a "good country show", and very social.
Morrison is hoping for good weather. She said organisation has been hectic, and the association needs new, young members.