riser; rise
Architectural term for the vertical part of a step or stair. Used in building and construction contexts.
The riser height of the stairs was set to 15 centimeters.
蹴上げが低いと、階段を上りやすくなる。
If the riser is low, the stairs become easier to climb.
Standard kanji spelling for the architectural term.
Abbreviated kanji form; less common but still used in some contexts.
Compound of 蹴る (keru, 'to kick') and 上げ (age, 'raising'), literally 'kick-up', referring to the vertical part of a step that one's foot kicks against when climbing.