Roller Blind Sizing & Split Calculator
Enter your opening to get tube, two-blind-split, fabric area, and an indicative cost band. For architects, facility managers & specifiers.
Enter a valid width and height first.
Recommended tube–
Two-blind split–
Fabric area (per window)–
Fabric area (total, x qty)–
Indicative cost (per window)–
Indicative cost (project total)–
Indicative U.S. ranges for 2026 planning only; not a quote. Tube guidance uses the standard 1.5 inch tube limit (~72-84 inches). Verify project-exact dimensions, fabric weight (GSM), and pricing on the manufacturer cut sheet. — BlindShades.pro