The stucco work at the main ubosot was done by artists of Ayutthaya period. The base of the stucco Bai Sema, stones (scared boundary stones) on 4 sides, depicts demons and human beings of nations carrying the Bai Sema. Above the base, the second level lines with Garuda and the third level is the ancient Krachang pattern. The fourth level is a lotus pattern and on the top stands the big and graceful double Bai Sema.