Steel Door Maintenance
How to Clean White Doors
On a white door the damage usually comes from the cleaning method rather than the dirt. Here is the right cleaner for each surface type and how to avoid yellowing.
Guides
Reading that helps when choosing a steel door, measuring an opening and living with it afterwards. Each topic gathers one area of decision.
Steel Door Maintenance
Steel Door Models
Front Doors for Homes
A home's front door is not one product. Apartment entrances, villa entrances and garden-level doors face different loads of sound, weather and heat, and each one needs a different build behind the same word.
Steel Door Models
What Is a Melamine Door
Melamine is a resin-impregnated decor paper fused to a board under heat and pressure. It is standard on interior room doors and, on steel entrances, works on the inner face.
Building Entrance Doors
Double Leaf Entrance Doors
Double leaf sets are the answer when a wide clear opening is needed. Inactive leaf direction, bolt arrangement and hinge loading all have to be planned before production.
Villa Doors
What Is Tempered Glass
Tempered glass is heat treated so its surfaces hold compressive stress. When it breaks it crumbles into small granules instead of sharp shards, which is why doors use it.
Steel Door Models
What Is Cold-Rolled DKP Sheet
DKP is the trade name for cold-rolled low-carbon steel sheet. Steel door bodies are formed from it because of its flat surface and its tolerance for deep forming.
Fire Doors
Service Shaft Access Doors
A shaft access door closes the opening to a building's service riser. Sizes are never standard, positions follow the services layout, and ratings apply inside fire compartments.
Fire Doors
Fire Door Handle Versus Panic Bar
A lever handle and a panic bar do not do the same job. One needs a deliberate movement; the other is designed to release under the body pressure of a crowd.
Fire Doors
How to Measure for a Fire Door
Fire doors allow less dimensional freedom because the rating depends on a tested fixing detail. Correct measurement means wall section, finished floor level and door hand together.
Steel Door Maintenance
How to Maintain a Fire Door
A fire door has to work every day it is in use, not only on the day it was fitted. Closer adjustment, seal integrity, gap measurement and panic hardware all need routine checks.
Fire Doors
Differences Between 30, 60, 90 and 120 Minute Fire Doors
The minute rating is a tested classification, not a promise of survival time. As the rating rises, leaf thickness, core density and hardware all change together.
Fire Doors
Fire Door Certification Explained
A fire door certificate belongs to a tested assembly, not to a leaf. Leaf, frame, hinges, lock, seals and installation are tested together, and substituting a part voids the claim.