Deconstructing building codes and amendments for all 50 states of the USA🇺🇸
Architects | Contractors | Inspectors | Engineers CaliforniaJoined May 2025
🚪 Not every door needs the full 18".
Accessible design typically demands wide pull-side clearance, but automation changes the game. With power-assisted or low-energy operators, the code allows tighter dimensions.
Why it matters:
Saves precious corridor space in hospitals and…
👣 Ever noticed how some stairs “feel right” to walk on? That’s the math at work, and here's how. 👇
IBC 1011.5.2 requires a minimum tread depth of 11 inches, consistent across the run.
Too shallow and you stumble;
too deep and you break rhythm.
The rule ensures…
Uniformity = safety.
Stairs that meet dimensions but lack consistency are still noncompliant.
The IBC limits riser/tread variation to ⅜″ max — because inconsistent steps trip people up.
Courts have tied countless fall lawsuits back to this rule. Contractors hate it when…
✋ Do handrails always need full extensions? Not in every case.
IBC requires long extensions at stair ends...but carves out exceptions for residences and assembly seating.
Why?
👉 In theaters, sticking rails create tripping hazards in dark aisles.
👉 In houses, projecting…
That extra half-inch could cost you.
Plenty of pros still think stair risers can stretch to 7½″ — but the IBC is clear: 7 inches is the max.
Even a ⅛″ over can fail inspection.
Real-world? Inspectors check risers with a tape, not a tolerance table.
A couple steps out of…
The Empire State Building was not just built, it was raced into existence.
In the middle of the Great Depression, 3,400 workers labored around the clock to raise this icon of New York. The result: a 102-story skyscraper completed in just 410 days, a speed that still beats many…
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