Typical opening: Many openings are compact apartment balconies where front span and side gaps both matter; total area is usually small, so total cost stays modest
Building mix: Newer flats, rental-heavy apartment blocks, family towers, and compact high-rise layouts
Outdoor conditions: Ask for the offered cable and fitting grades, coating details and supplier exposure guidance. Sun, rain, dust and the condition of the mounting surface affect the installation plan and care needs.
Common layout cue: Balconies combine drying, child movement, pet use, and storage in a small footprint, with French windows the next most common ask