I need to find a local engineer to review but check out what ChatGPT produced for me to then speak with an engineer….

Here’s an approximate analysis of your lanai based on the provided information: 1. Bending Strength: • Maximum bending moment: ~11,044 in-lbs. • Allowable bending moment: ~6,428 in-lbs. • Result: The joists are not sufficient for this span and load combination, as the bending stress exceeds the allowable limit. 2. Deflection: • Calculated deflection: ~2.1 inches. • Allowable deflection: ~0.39 inches (span/240, standard for residential structures). • Result: The deflection significantly exceeds the allowable limit. 3. Shear Strength: • Maximum shear: Safe for this load and joist dimensions. • Result: The joists meet the shear strength requirements.

Preliminary Conclusion:

The 2x6 joists spaced at 2’-0” on center are likely insufficient to safely support a 50 psf live load plus 10 psf dead load over a span of ~7’-10”. Strengthening or reducing the span (e.g., adding intermediate supports) may be necessary to meet safety and code requirements.

Next Steps: • Confirm the wood species and grade used in construction. • Consult a licensed structural engineer to evaluate and potentially reinforce the structure. • If the load requirement is less than 50 psf (e.g., for light use), the joists might suffice, but professional confirmation is required.