cellheight

Cellheight is the height of a single cell within a grid-based layout, such as a table, spreadsheet, or user interface component. It determines how much vertical space a cell has to display its content and influences readability, alignment, and the overall layout.

Measurements are platform-specific. In web design, heights are commonly specified with layout rules, often in pixels (px), but the final height depends on content, padding, line-height, and CSS properties rather than a fixed cell height alone. In spreadsheets, row height is measured in points and can be adjusted to fit font size or wrapped text. The height of a cell is influenced by the row height and the surrounding padding; increasing row height affects nearby rows in the grid.

In UI toolkits and data grids, a cellheight may be fixed for uniformity or auto-sized to accommodate content. Fixed heights simplify rendering and virtualization, while dynamic heights improve readability for varying data but may require more complex layout calculations.

Considerations for choosing a cellheight include readability, content type, and performance. Fixed, uniform heights help with fast scrolling and predictable layouts, whereas dynamic heights support longer text or richer content. Accessibility and responsive design also matter; excessively small heights hinder legibility, and excessive height can waste space on small screens.