Office Chair Foam Cushion & Upholstery: Layering to Hand Fitting

The video shows the complete production of upholstered seat and back components at MSDA's workshop. Workers first stack foams of different densities in layers to form a graded support structure, then apply fiber padding and non-woven cotton as a soft top layer; meanwhile, the back frames are adhesive-coated for upholstery attachment. In the covering stage, operators hand-stretch and fit sewn covers onto the back shells, controlling tension through pulling and adjustment to keep corners and edges free of wrinkles and looseness. The foam cushions are then fixed onto the seat shells; inspected components proceed to the assembly line to be mounted onto chair frames into finished chairs.