Door Cores

Door Cores

All our Defendoor Doorsets come as standard with our Severe Duty Core. These 3-layer cores are made of very densely packed timber particles, which are extremely stable and balanced, and have achieved the highest possible ratings for quality, strength and overall performance.

These door cores are tested to DD 171, EN 1192, EN 947, EN 949 and EN 950 standards for:

  • Vertical load
  • Static torsion
  • Soft, hard and heavy body impact
  • Slamming shut and open
  • Closure against obstruction
  • Resistance to jarring and vibration
  • Abusive force on handles
  • Operating forces
  • Cycling – as an indication of anticipated service life

To test the durability, over one million cycles were completed on a 54mm thick door fitted into a softwood frame using standard hardware. After 10 months’ continuous opening and closing, the door assembly showed no sign of fatigue. Tested to BS EN 1191 (with classification according to BS EN 12400).

Judged on how they perform in tests, door assemblies are awarded one of four classifications, ranging from Light, Medium or Heavy to Severe Duty. In independent tests, These door cores achieved SEVERE DUTY – the highest grading possible in the British Standard of Mechanical Tests for ‘hinged or pivoted doors’.

Further Resources

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Lead-Lined X-Ray Doorsets

SDS manufactures a range of lead-lined doorsets in the same PVC finishes as our other doorsets.

Glazing Beads

Glazing forms a vital part of many internal doorsets.

Get in touch

Our friendly and experienced team are here to help

01420 543 222

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