The Bot (or Ubosot) may have one, two or three doors, both in front and at the back of the building. Outside, the doors and windows are decorated with ornamental frames in stucco, gilded and enriched with glass mosaics. The panels of the windows and those of the doors are decorated outside with gilded lacquer ornaments while, in general, the interiors have mythical figures of guardians painted in vivid colors. Some Bots instead of lacquer decoration have ornaments in inlaid mother-of-pearl.
Some Bots such as that of Wat Na Phramane in Ayutthaya (ca. 16th century A.D.) have between the two lateral doors a large and high niche containing a standing Buddha image. Both front and rear facades have the same niche.
In old Thai architecture, the pillars of the interior and exterior of the Bots are octagonal. The interior ones are generally enriched with painted ornaments. The capitals of these columns have a lotus form. If the inner columns were in wood, then their natural circular form was respected; the shaft was often painted in red and enriched with gilded ornaments.