Notes & Assumptions: - Calculations update automatically. Select lumber type to preset common design values (E, Fb, Fv). - **Lumber Values:** E, Fb, and Fv are initially set based on the selected lumber (approximate No.2 grade values - *always verify locally*). You can then manually edit these values for custom analysis. Fb/Fv values entered are base values; calculations apply adjustment factors (CF, Cr, etc.). - Joist Size: Uses standard dressed dimensions. CF (Size Factor) applied based on depth. - Adjustments: Cd=1.0 (Live Load), Cr=1.15 (Repetitive Member). Assumes dry use, normal temp, lateral support (Cm=1, Ct=1, CL=1). - Dead Load: Load results are *Live Load only*. Estimated Dead Load (~5 PSF) added internally for span checks. - Shear (Fv) is checked. Deflection Limit applies to *Live Load* only. - Building Type comparison uses typical *minimum* Live Loads (check local codes). - **Disclaimer:** Estimates for planning only. Consult official tables, codes, or an engineer for final design.