What load must balconies, decks, and other platforms be designed to carry?

Balconies, decks, and other platforms must be designed to carry a load of 1.9 kPa. This requirement is based on structural safety standards that ensure these outdoor spaces can support the weight of occupants, furniture, and other loads that may be placed on them. The specified load is a consideration of both static and dynamic forces that could act on the structure, particularly since these areas are often exposed to varying conditions such as weather and usage patterns.

Designing to this standard minimizes the risk of structural failure and enhances the safety and usability of these features. The 1.9 kPa load allows for appropriate allowances for both common residential use and potential extra loads, such as gatherings. Ensuring that the design meets this requirement is crucial for compliance with building codes and for the safety of users.

Other values, such as 0.35 kPa or 2.5 kPa, would not adequately account for the expected loads on these structures, potentially compromising safety and structural integrity.