First a sound, then a mark

A steel door does not start sticking overnight. There is a faint rub on closing, then the handle has to be lifted a little further, and finally the door needs a shoulder. The useful part of that sequence is that the door marks its own fault: a thin polished stripe appears on the paint or facing. That stripe tells you which hinge to move and which way.

Before touching anything, close the door slowly and feel where the resistance begins. Then follow the gap between leaf and frame all the way round. On a healthy door that gap is roughly equal on all four sides.

Diagnosis by the position of the mark

Top corner, lock side. The commonest case. The leaf has dropped slightly around the hinge line, bringing the top corner toward the frame and opening the bottom. Raise the leaf, or draw the top hinge in.

Bottom corner, lock side. Usually a loose bottom hinge, or a floor that has risen. Measure the gap under the leaf first; if the covering was laid after installation, the hinges are not the problem.

Hinge side. The leaf sits too close to the frame. The depth adjustment moves it out a millimetre or two, and the same setting governs how hard the gasket is compressed.

Bolt entering the keep with force. That is alignment, not rubbing. The plane of the leaf has shifted; correct it with the pressure adjustment or by repositioning the keep plate.

What a three-way hinge does

Adjustable steel door hinges control three axes independently. The horizontal setting moves the leaf toward or away from the lock jamb, which is how the gap is equalised. The vertical setting lifts or drops the whole leaf, correcting droop and the clearance underneath. The pressure setting pushes the leaf against the frame or eases it off, which decides gasket contact and how firmly the door closes.

Depending on the hinge, those settings sit behind an allen screw, a cross-head screw or an eccentric collar. If there is no manual, lifting the covers on the hinge body shows the adjustment points.

The order matters

Turning screws at random fixes one thing and starts two. Work in this sequence:

  • Check every hinge screw for tightness first; a loose screw makes adjustment meaningless.
  • Set the vertical adjustment and bring the leaf to the right height.
  • Use the horizontal adjustment to even out the gap on the lock side.
  • Finish with the pressure adjustment for gasket contact and closing feel.
  • Open and close the door a few times after each step before going on.

A thin wedge under the leaf while you work keeps it from dropping under its own weight and spares the screws.

When the hinges are not at fault

Some sticking cannot be adjusted away. If the frame was never fixed firmly enough, the weight of the leaf pulls it inward over time and the frame has to be refixed. If the foam was over-expanded at installation, the jamb bows slightly inward and the leaf rubs at mid height. If the floor covering went down after the door, the clearance underneath is gone, and the remedy is lifting the leaf, or machining its bottom edge when there is no lift left.

Then there is the seasonal kind. Leaves with timber facing or a timber core widen by fractions of a millimetre in damp months. Where the sticking returns twice a year and clears on its own, easing the pressure setting slightly beats any permanent intervention.

When to call a fitter

If hinge screws spin in their holes, if the frame profile is visibly bowed, if the bolt no longer reaches its keep at all, or if every adjustment moves the problem to a different corner, the job now needs measuring on site. Forcing it from here only enlarges the screw holes and makes recovery harder.

Habits that delay the problem

  • Do not slam; every slam loosens the hinge screws a little.
  • Use a door stay rather than a wedge under the leaf.
  • Keep heavy bags off the handle.
  • Check the hinge screws yearly and put light oil on the pins.
  • Allow for the clearance underneath before renewing a floor covering.

If the leaf is past adjusting, or the frame needs replacing, send the opening measurements and we will match a composition from sheet panel doors or luxury steel doors and quote for that opening. For a high traffic entrance, the heavy duty hinge options under building entrance doors are the ones to compare.