simple 20x20 arena/ build area

This build is a minimalistic 20x20 (exterior 40x40) square enclosure, designed as a versatile arena or a dedicated construction area. Its robust dark brick walls feature clear glass windows on the lower section and a sturdy wooden railing along the interior top edge. The flat, grey ground provides a clean canvas for activities or future development. Multiple single-block entrances allow easy access from all cardinal directions.