चतुष्पञ्चाशदङ्गुलः कूप्यवनहस्तः ॥ कZ_०२.२०.१६ ॥
catuṣpañcāśadaṅgulaḥ kūpyavanahastaḥ
กูปยวนหัสดะมีขนาด 54 อังคุละ.
It supports standardized measurement for timber/forest produce assessment, preventing under-reporting and easing enforcement.