Measure the structure as well as the opening
Record cassette support, side-guide fixing zones, clearances and the material behind the visible finish.
Request Project PricingOutdoor Living & Architecture · Large-opening answer
Very large openings are not simply small blinds scaled up. Product class, structure, handling and servicing become more important as the opening grows.

Record cassette support, side-guide fixing zones, clearances and the material behind the visible finish.
Multiple independently operated blinds can improve handling, servicing and day-to-day flexibility even where a wider single system may be technically possible.
Long cassettes and large assemblies need practical transport, lifting and installation access.
Reference this resource
Link to the live page rather than a saved copy so readers reach the current Apollo planning resource and its latest product and planning links.
apollonzglobal.com/knowledge-centre/outdoor-living-architecture/how-plan-large-outdoor-blind-openingApollo NZ Global. How Do You Plan a Very Large Outdoor Blind Opening?. apollonzglobal.com/knowledge-centre/outdoor-living-architecture/how-plan-large-outdoor-blind-openingReference & source policy Move from knowledge to project