What attachment method is acceptable for stringers to a deck?

The attachment method that involves using a drop header with bolts is acceptable for stringers to a deck due to the structural integrity it provides. Stringers, which support the treads of staircases, need to be securely fastened to withstand both vertical loads and lateral forces. A drop header reinforced with bolts creates a strong connection between the stringers and the deck, ensuring that the load is evenly distributed and that the assembly remains stable over time.

Bolts provide a robust connection compared to other fasteners because they can withstand greater forces without loosening. In scenarios where the deck is subjected to dynamic loads, such as foot traffic or environmental factors, this type of secure attachment is essential for safety and durability. The use of bolts also allows for easier adjustments or modifications to the structure if needed in the future.

In contrast, methods like using screws or nails alone might not provide the same level of strength and might lead to issues such as withdrawal over time due to movement or weather effects. Adhesive materials, while useful in some applications, are generally not sufficient on their own to support structural components such as stringers that require mechanical fastening for safety and compliance with building codes.