Material care · 4 min read
What Steel, Concrete, Ash and Wool Look Like After Ten Years
Every material ages. An honest account of how each one in the workshop changes, and which changes you will like.
Furniture catalogues photograph day one. Day three thousand six hundred and fifty is the honest question, so here is what each material in the workshop actually does over a decade of normal use, including the parts you will not enjoy.
Powder-coated steel
What happens: almost nothing on flat surfaces. The film is cured and does not continue to harden or go brittle in a domestic room. Colour is stable indoors. What changes is at the edges: small chips at feet, scuffs on a footrest, a satin sheen where hands pass repeatedly.
What you will like: it looks the same across the whole piece, so it reads as intact rather than worn.
What you will not: a chip left alone becomes a flaked patch, because rust expands under the film. The damage is not gradual, it is a step change. See why powder-coated steel rusts.
Ten-year intervention: a few minutes of touch-up paint, twice. Possibly a respray of one component if it has had a hard life.
Cast concrete
What happens: it darkens slightly and evens out. Fine crazing becomes more visible as the lines pick up dirt. Edges round over very slightly where people touch them. The sealer wears thin at the points of contact, usually the front edge of a bench seat and the centre of a table top.
What you will like: ten-year concrete looks better than new concrete to most people. It stops looking like a product and starts looking like a material.
What you will not: the record of your mistakes is on the surface. An etched ring from a lemon, a dark patch from oil, a rust mark from a tin. None of them reverse. And outdoors, water in a hairline through enough winters is the one failure mode that ends a piece.
Ten-year intervention: resealing once or twice, more often on a heavily used horizontal surface. See sealing cast concrete furniture.
Oiled ash
What happens: it darkens and warms. Ash starts pale and takes on a honey tone, faster in daylight. The surface develops a slight sheen where it is touched. It moves with the seasons, so gaps open in winter and close in spring, covered in what indoor humidity does to wood furniture.
What you will like: it is the only one of the four you can repair in place. A ring, a scratch, a dull patch: clean, sand lightly, oil that spot, wipe off. The repair blends because the finish is in the wood, not on it.
What you will not: uneven light makes uneven colour. A top with a lamp base on it for five years keeps a pale circle. Move things occasionally.
Ten-year intervention: oiling the areas that need it, tested rather than scheduled. See when to re-oil ash furniture.
Wool upholstery
What happens: it pills in the first months and then stops. It flattens where people sit. It resists dirt better than any synthetic because the fibre surface is waxy and the crimp holds soil away from the face. Colour shifts in light, and dyed wool in a sunny window will visibly fade within a few years.
What you will like: covers unzip, so the fabric is the one part of a sofa that can be dealt with separately. A ten-year frame with five-year covers is a normal and sensible outcome.
What you will not: felting from one bad wash, which is instant and permanent. See washing wool cushion covers without shrinking them.
Ten-year intervention: regular vacuuming, occasional washing, cushion rotation, and possibly new covers.
The pattern
Three of the four materials improve in appearance with age and one stays flat. None of them fail in normal indoor use. Every genuinely bad ten-year outcome in this list traces back to one of three things:
- Water somewhere it should not be, for a long time.
- A cleaning product, once. See cleaning products that wreck furniture finishes.
- Direct sun on one part of a piece for years, covered in sunlight, fading and where not to put a piece.
Reality check
- Placement decides more than material.
- Oiled wood is the most repairable surface here by a distance.
- Concrete keeps a permanent record of acid and oil. Protect it early.
- Steel is binary: intact, or chipped and then rusting. Check the feet.
- Even wear looks deliberate. Patchy wear looks neglected. Rotate, move things, and let light reach the whole piece.
Common questions
- Which material ages best?
- Oiled ash, if you accept that it darkens. It is the only one of the four that can be repaired in a single spot, so ten years of small accidents never accumulate into a tired piece.
- Which ages worst?
- Whichever one is in the wrong place. Steel in a wet corner, concrete outdoors through freeze-thaw, wool in direct sun. Placement beats material for how a piece looks in ten years.
- Does any of this need professional attention?
- Recoating steel and resealing a concrete surface are workshop jobs. Oiling wood and caring for wool are not. Across ten years most pieces need nothing professional at all.
- Will a piece look new after ten years?
- No, and that is not the aim. A piece that looks untouched after ten years has not been used. The aim is that it ages evenly rather than in patches.