Gridlock explores the craft of traditional Chinese wood joinery by drawing inspiration from the Luban lock, a complex wooden puzzle attributed to master carpenter Luban over 2000 years ago. Originally conceived as a toy, the Luban lock features an intricate design in which wooden blocks intersect at a single node with concealed cut surfaces, and is unlocked by identifying and rotating the key blocks. Reimagined as a nodal element within a grid structure, the project combines digital and manual fabrication to transform Luban locks into modular components for architectural use. This project aims to merge the rich heritage of traditional joinery with modern technology, creating a distinctive design aesthetic and spatial language that resonates across various scales and contexts.