At least 16 by 12 metres, with the 3 by 1.5 metre table in the middle, the net across it, the halfway line and a service line 3.5 metres from each side of the table.
The picture above was drawn when the docs were built. The script below draws it again with the published package.
import { drawKyogijo } from "@johnmorrisdotca/kyogijo-stadiums";
const svg = drawKyogijo({ sport: "teqball" });
This page imports the package from jsDelivr (major version 0), which serves only versions that have been published to npm. A feature added after the last release is not in it: the page then keeps the picture above and says why. The docs were built from version 0.6.1.