niveljalka
Niveljalka is a portable leveling device used in carpentry and engineering to achieve precise vertical alignment on uneven surfaces. The term appears in several languages as a compound of 'nivel' (level) and 'jalka' (foot), and is commonly used in Nordic and Iberian technical documentation. A typical niveljalka combines a compact foot-shaped base with a built-in spirit level and a vertical adjustment mechanism, usually a screw or micrometer. To use, the device is placed on the surface, the level is checked, and the adjustment is made until the bubble is centered. The lock is engaged to maintain the setting.
Variants include mechanical versions with screw-driven adjustment and digital variants with accelerometers and LCD readouts; materials
History and adoption: first commercial references appear in late 20th-century technical literature and catalogs. Niveljalkas are