Abstract: A structural panel, suitable for use as slatwalling in retail outlets, comprised of a metal sheet bent to define on each side of the panel a series of channels of re-entrant cross-section extending continuously across the width of the panel. The panel is manufactured by a bending process wherein a portion of sheet material is deformed into a U-shaped cross-section, and the sides of the channel are deformed by bending into a substantially S-shape to define the re-entrant channel shape, this process being repeated at regular intervals along the sheet material. The bending process is performed by tooling including first and second tool assemblies, the first assembly including a shaping part for deforming a portion of sheet material into a recess defined between a pair of opposed tool elements of the second tool assembly, the opposed tool elements being driven towards each other to deform the channel side walls into an S-shape.