Rain Gutter System segmentation by type disaggregates demand into K-Style, Half-Round, Box, and Custom profiles. K-Style dominates value because its flat back and decorative front integrate with modern fascia, enabling higher unit pricing and broader contractor adoption. Half-Round, while lower in volume, commands a price premium in restoration projects owing to copper and zinc materials, lifting overall market value despite thinner install bases. Box gutters serve commercial flat roofs where water volume dictates hydraulic capacity; their gauge thickness and steel fabrication drive higher material intensity, translating into disproportionate revenue per linear metre. Custom fabrication—typically 5 %–7 % of the type mix—captures above-average margins through architect-specified geometries, but its contribution is capped by low repeatability and high labour content.