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02listingaccuratelymeasuring300ppi

Accurately Measuring For Your Steel Door

Learn how to measure your structural opening correctly for a Strongdor steel door.

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04listingfaq Recorddfa127 Operator300ppi

FAQ: Record DFA 127 Operator

Discover the FAQs about the Record DFA 127 Operator

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16listingunderstanding Fireresistant300ppi

Understanding Fire Resistant Classifications

Understand fire resistant classifications with this guide provided by Strongdor.

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06listingadjust To Fit Sides300ppi

Strongdor Innovative Adjust‑to‑Fit Sizes: Installation Guidance

Ensuring your door is fitted correctly is a crucial part of any successful installation. Read this step by step by guide that details how to do this.

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21listingperformanceratings Exp300ppi

Performance Ratings Explained

Use this Strongdor guide to understand the meaning behind performance ratings.

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730 X 500 CE marking on steel doors

Do all Steel Fire Doors need CE marking?

With regulations constantly evolving, getting your fire door certification right can feel complex.

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Fire Door Compliance Article Header

How do I know if my steel fire door is compliant?

When a fire breaks out, every second matters and knowing if you fire door is compliant can save lives. At Strongdor, we always aim to make life easier for everyone by pointing you in the right direction.

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Strongdor Enhanced Internal Fire and Smoke Rated Steel Doors

Strongdor Raises the Bar for Internal Fire and Smoke-Rated Steel Doors

Fire door certification isn't a box-ticking exercise, it's a life-safety commitment. Our new internal steel fire door has been independently fire and smoke tested, achieving an integrity rating of up to E120 and Sa4 smoke classification. Buying the critical time needed for building evacuation and emergency response.

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Fire listing image

What's the Difference Between External and Internal Fire Rated Steel Doors?

Fire doors aren’t all the same. For the moment, legislation treats steel internal fire doors and external steel fire doors as two separate products, and they must be handled accordingly. Lets first take a look at the reason why internal and external doors need to be differentiated.

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