Calcs.com Release Notes — May 16–31, 2026

Engineering Calculators

Wood Shear Wall NDS 🇺🇸: Implemented Change Material support between NDS 2018 and NDS 2024 editions, allowing seamless switching between code editions to match other US timber calculators.
Masonry Shear Wall LRFD 🇺🇸: Implemented pier-based reinforcement distribution for walls with openings using the segmented pier method, added opening edge distance inputs and prescriptive reinforcement notes, and tightened wall edge cover limits that may affect existing designs.
Timber Bolt 🇺🇸: Corrected the k1 factor calculation to consider maximum shear in both X and Y directions instead of only the X direction.
Timber Beam 🇺🇸: Corrected live load override units and formulas, removing unintended gravity multipliers and adding warning notes when defaults are overridden.

HSS Truss KT-Connections 🇺🇸: Added complete support for gapped rectangular KT-connections including K1/K2 sub-connection analysis, equilibrium checks, and limit states 8–11 per AISC 360-22 Table K3.2.
Column Bracing — Internal Double Gusset 🇺🇸: Introduced a new Internal Double Gusset brace connection type with dedicated bolt gusset plate inputs, workable flat calculations, and combined width limit checks.
Steel Connection Concrete Filled Moment 🇺🇸: Added a round HSS column option with a complete calculation path including new member selector, section properties, and strength equations.

HSS-to-HSS Shear Connections 🇨🇦: Corrected resistance factors for bending rupture calculations across single plate, exterior plates, coped beam, and through bolt configurations.
HSS-to-HSS Shear Connections — Field-Welded Exterior Plates 🇺🇸 🇨🇦: Added comprehensive plate flexural limit states for field-welded exterior plates including yielding, rupture, and lateral-torsional buckling checks.
HSS-to-HSS Shear Connections — End Plate-Face Plate 🇺🇸: Added comprehensive axial load calculations for End Plate-Face Plate connections, including tension and compression checks, bolt analysis, and weld evaluations.
WF-to-HSS Moment Connections 🇺🇸: Added tensile rupture evaluation for diaphragm and splice configurations and corrected 3D diagram bolt placement accuracy.
WF-to-HSS Shear Connections 🇺🇸: Extended the calculator with 3D-capable diagrams, added round column support and enhanced component depth parameters, and fixed fullscreen handling for 3D mode with proper scaling and centering behavior.
HSS Truss Connections 🇺🇸: Added weld symbols to dynamic diagrams for each branch based on weld type and angle.

Partner API — US Building-Code Calculators 🇺🇸: Enabled 12 US IBC building-code calculators for external partner API access through developer.calcs.com, with structured input/output, field discovery, and documentation.

Standards Viewer: Standards Australia copyright notices now appear only when viewing SA standards, preventing confusion when viewing AISC content.