For this picture windows project in Rawtenstall, opening checks, frame fitting and finishing are treated as one sequence. Reveal Dimensions leads the review, so we check internal and external reveal depths so trims, plaster and handle clearances can be coordinated, with reveal dimensions kept as the lead check for this picture windows scope. We use frame alignment and glass specification around opening dimensions, glass specification, frame support, drainage and perimeter sealing, ensuring we check the frame for line, level and square before glazing and final tightening and match glazing type and pane configuration to the intended room use and project specification, with reveal dimensions kept as the lead check for this picture windows scope. The last technical check is glazing-packers; we support glass units correctly within opening sashes and fixed lights before beads are completed, with reveal dimensions kept as the lead check for this picture windows scope. This supports a broad glazed area with the frame and glass coordinated to the opening.