inside measure; internal dimension
Refers to the clear internal measurement of a space, such as the width or depth inside a container, room, or frame, as opposed to the external dimensions.
The inside dimensions of this box are 30 cm by 20 cm.
建築図面には内法寸法が記入されている。
The architectural drawings show the internal measurements.
Standard kanji form; common in architectural and construction contexts.
Kana-mixed spelling sometimes used for clarity, especially in non-specialist writing.
Compound of 内 (uchi, 'inside') and 法 (nori, 'rule, measure'). The reading のり for 法 is an older native Japanese reading used in measurement contexts.