Sometimes the project just needs a clean white base that's actually thick enough to work with. Not flimsy copy paper, not a card so heavy you need a knife to cut it. This 200gsm white colourboard sits right in the middle — stiff enough to stand, light enough to fold, and bright enough to make every other colour pop when you layer it. At 510 x 640mm you get a full project-size sheet, so your borders, cut-outs, and backing panels all come from one clean piece. Paint it, print on it, or leave it as the canvas. Your call