Nearflush

Nearflush is a term used in design, manufacturing, and construction to describe a state where two surfaces are intended to be flush but are not exactly level with each other; instead they lie within a defined tolerance that is visually and functionally acceptable. The near-flush condition is intentional or acceptable within a project’s tolerances, not a defect. The concept is widely used across industries where precise surface alignment matters but perfect flushness is impractical due to material behavior or assembly methods.

In practice, near flush appears in cabinetry and furniture when doors or panels sit very close to the frame but retain a tiny gap or slight step caused by wood movement, hinge clearance, or finishing. In electronics and consumer devices, panels may be near flush with the enclosure surface, appearing even and seamless while leaving small clearance for components, tolerances, or plating. In architectural finishes, tile edges or metal trims may be near flush to account for substrate irregularities or sealant allowances.

Measurement and quality control define acceptable near-flush conditions through drawings and standards. Inspectors use straightedges, feeler gauges, calipers, or optical metrology to verify that deviations stay within specified limits, often ranging from fractions of a millimeter to under a millimeter depending on scale.

Origin: the term combines "near" and "flush" and is used descriptively rather than as a formal technical term across all industries. See also flush, alignment tolerance, gap, surface finish.