Preliminary estimating tools

Najjarine Structures · Wind pressure demands (ASCE 7-22 wall components & cladding) and vertical mullion bending/deflection check. Run wind first — the mullion check carries its pressures forward.

1 · Wind pressure demands — ASCE 7-22 wall C&C
Project (for PDF header — optional)
Wind & building
Applied defaults (1)
  • Ridge height = eave height = building height (flat roof).
Effective wind area (§2.1)
Ae = span × tributary width = 10.00 × 5.00 = 50.00 ft² — using suggested value (edit the Ae field to override).
Advanced parameters (defaults suitable for typical projects)
2 · Vertical mullion check — bending & deflection
Wind pressures (carried from the wind run above)
Mullion & panels
Applied defaults (6)
  • Simple span support.
  • Spacing between supports = distance between horizontals (Lh = span).
  • Deflection limit — span-based (AAMA): L/175 for spans up to 13′-6″ (162 in); L/240 + ¼″ above.
  • Tubular (non-reinforced) design condition.
  • No DSA inertia reduction applied.
  • Dead load excluded — it does not affect the bending or deflection check.
Section properties
Applied defaults (2)
  • Torsional constant J is assumed as 1.0 (not measured data; see results note).
  • The entered Sx is applied to both the interior and exterior faces.
Project (for PDF header — optional)
Request a fee estimate

Tell us about the project and we will come back with a fee estimate. Conditions the mullion check flags as needing a stamped review belong here too — this is the contact form.