How to maximize yield on a small 100 sq ft terrace?

Use 60% of floor space for pots and 40% for vertical trellises growing climbers (beans, gourd, cucumber). Choose compact or dwarf varieties. Succession-sow every 3 weeks so one bed harvests while another establishes. Add hanging baskets for herbs. Fertilise fortnightly. A well-managed 100 sq ft produces 15–20 kg of vegetables monthly.