A guide to reading wood in furniture and objects: from solid boards and veneer to Sorrento marquetry, with conservation context for humidity and surface care.
A material with a grain direction
Wood is a porous, cellulose-rich plant material that exchanges moisture with surrounding air. In a furniture piece, species, grain direction, construction and surface finish all affect how the material behaves; the word “wood” alone does not specify those details.1
Solid wood and veneer
A visible wood surface need not be a solid board throughout. The Forest Products Laboratory defines veneer as a thin wood sheet bonded to a solid or reconstituted substrate, usually to improve appearance. That is a different construction from a single solid board; neither label alone tells you whether a piece is well made.2
Sorrento’s inlaid wood tradition
Sorrento inlay work began around 1830 and is connected with ebony carpenter Antonio Damora. The two-colour marquetry used walnut and orange wood, with fine perimeter cuts filled with black stucco. A later example in the Correale Museum collection is the unfinished secrétaire made by master Gargiulo between 1900 and 1910.3
How to read a wooden object
Start with what can be identified: species where documented, solid or veneered construction, joinery, grain, finish and repairs. A Sorrento marquetry surface, for example, uses fitted small contrasting pieces to form a design; it should not be described as a single species or as solid wood without object-specific evidence.3
Movement and conservation
As humidity rises, wood absorbs moisture and swells slightly; as air dries, it releases moisture and shrinks. These movements can crack wood or damage its finish, and veneer can also distort when moisture conditions change. For an older or unfinished object, avoid assuming that a familiar polish or wet-cleaning method is safe; extensive work belongs with a conservator.1,2,4
Sorrento marquetry: surface, substrate, movement
The Correale Museum's inlaid furniture makes a good object lesson because its decorative picture is built from pieces of wood, not simply painted onto a board. Look first for the inlaid surface, then for the supporting structure and its joins. These are distinct parts of one object; changes in humidity can affect wood and old finishes, so an attractive pattern alone cannot dictate cleaning or restoration.1,3
| Object part or stage | What it shows | Limit of the clue |
|---|---|---|
| Inlaid surface | Small wood pieces form a design, as in the Correale collection | Not proof that every Sorrento-style piece is solid wood |
| Supporting wood | Substrate and joints hold the object | A frontal pattern photo does not show the substrate |
| Environment | Light and humidity affect wood and finishes | Do not polish a historical object by generic recipe |

