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Fire Door vs Smoke Door: What Each One Does

Fire doors stop flames. Smoke doors block smoke. Learn the ratings, the S label, the tests and how to specify the right door for each...


Esteban Galicia Oct 20, 2026 12 min read
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Fire Door vs Smoke Door: What Each One Does

Fire doors stop flames. Smoke doors block smoke. Learn the ratings, the S label, the tests and how to specify the right door for each...


Esteban Galicia Oct 20 12 min read
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Fire Door Glazing Rules: What the Code Allows

Fire door glazing rules explained: vision panel size limits, rating by door duration, safety glazing, labels and what voids a rating. For NYC and US...


Esteban Galicia Oct 19, 2026 11 min read
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Fire Door Glazing Rules: What the Code Allows

Fire door glazing rules explained: vision panel size limits, rating by door duration, safety glazing, labels and what voids a rating. For NYC and US...


Esteban Galicia Oct 19 11 min read
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Decorative steel door gauge title card
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Hollow Metal Door Gauges: 20, 18, 16 and 14 Exp...

Hollow metal door gauges explained: face thickness for 20, 18, 16 and 14 gauge, SDI levels, frame gauges, and why gauge alone never makes a...


Esteban Galicia Oct 18, 2026 9 min read
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Hollow Metal Door Gauges: 20, 18, 16 and 14 Exp...

Hollow metal door gauges explained: face thickness for 20, 18, 16 and 14 gauge, SDI levels, frame gauges, and why gauge alone never makes a...


Esteban Galicia Oct 18 9 min read
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NFPA 80 Summary: 13 Checks Facility Teams Can’t...

See how NFPA 80 applies to facility teams, from 13 swinging door checks and annual inspections to labels, repairs, and reinspection triggers.


Esteban Galicia Oct 17, 2026 9 min read
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NFPA 80 Summary: 13 Checks Facility Teams Can’t...

See how NFPA 80 applies to facility teams, from 13 swinging door checks and annual inspections to labels, repairs, and reinspection triggers.


Esteban Galicia Oct 17 9 min read
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Steel door gauge title card illustration
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Steel Door Gauge for Specifiers: Specify 0.042 ...

Learn how steel door gauge maps to decimal thickness and SDI levels, then write specs contractors can verify and confirm fire door listings on delivery.


Esteban Galicia Oct 16, 2026 7 min read
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Steel Door Gauge for Specifiers: Specify 0.042 ...

Learn how steel door gauge maps to decimal thickness and SDI levels, then write specs contractors can verify and confirm fire door listings on delivery.


Esteban Galicia Oct 16 7 min read
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en stairwell reentry requirements

Stairwell Reentry Requirements: 3 Triggers, Loc...

Learn how 2024 and 2021 model codes, Illinois, NYC, and Chicago rules shape stairwell reentry, lock release, signage, door selection, and installation.


Esteban Galicia Oct 15, 2026 9 min read
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Stairwell Reentry Requirements: 3 Triggers, Loc...

Learn how 2024 and 2021 model codes, Illinois, NYC, and Chicago rules shape stairwell reentry, lock release, signage, door selection, and installation.


Esteban Galicia Oct 15 9 min read
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en fire door installation requirements

Fire Door Installation Requirements: Check 4 mm...

See how NFPA 80 and local codes shape fire door installation, verify labels and on site clearances, and document testing and handover requirements.


Esteban Galicia Oct 14, 2026 14 min read
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Fire Door Installation Requirements: Check 4 mm...

See how NFPA 80 and local codes shape fire door installation, verify labels and on site clearances, and document testing and handover requirements.


Esteban Galicia Oct 14 14 min read
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