Humidity is the main variable

Timber takes on and gives off moisture with the surrounding air, and it moves as it does. Large swings — a room that is very dry in winter and humid in summer — cycle the joinery and gradually loosen it.

Stable conditions matter far more than any product you apply. A room kept broadly between 40% and 60% relative humidity will hold a frame steady for decades.

  • Keep relative humidity broadly stable, ideally 40–60%
  • Away from radiators, underfloor heating vents and direct sun
  • Dust with a dry or barely damp cloth; never soak
  • Check joints and bolts twice yearly
  • Re-oil or wax only if the manufacturer specifies it

Bolts settle in the first year

New hardwood frames compress very slightly at the joints as they settle. Bolts that were correct at assembly are often slightly loose after a few months, and that shows up as a rattle rather than a structural problem.

Check every bolt at three months, twelve months, then annually. It takes ten minutes and prevents most frame noise complaints.

Finish care

Most reformer frames are sealed with a durable lacquer or hardwax oil. Lacquered frames need nothing beyond dusting. Oiled frames occasionally benefit from re-oiling, but only if the manufacturer specifies it — applying oil over a lacquer finish just leaves a sticky surface.

Never use furniture polish containing silicone. It interferes with any future refinishing and attracts dust.

The advantage of timber

Unlike a metal frame, a hardwood one can be refinished. A frame that looks tired after fifteen years of studio use can be sanded and resealed to look essentially new.

That is a genuine longevity advantage, and it is worth remembering when comparing a hardwood machine’s price against a metal one.