Ash is a strong, pale hardwood belonging to the Fraxinus genus, long valued for its straight grain, resilience, and ease of working. It has been widely used across Britain and Europe for both structural and decorative purposes, particularly where strength and clean appearance were required.

Commercially, ash most commonly appears as White Ash (Fraxinus americana) or Black Ash (Fraxinus nigra), though several other species share similar characteristics, including European Ash (Fraxinus excelsior), Green Ash (F. pennsylvanica), and Oregon Ash (F. latifolia). These species are often visually indistinguishable without knowledge of geographic origin.

White Ash generally displays a lighter heartwood with wider growth rings, while Black Ash tends to be slightly darker with closer ring spacing. Both have wide sapwood that is often poorly defined from the heartwood. The grain is typically straight and regular, though occasional curly or figured boards occur. Ash has a medium to coarse texture, comparable to oak, and finishes cleanly.

A notable decorative variant is Olive Ash, which refers not to a separate species but to ash wood exhibiting darker, streaked heartwood resembling olive wood. This effect develops as some ash trees mature and is most commonly found in European Ash. Olive Ash, including burr veneers, was especially favoured for visible surfaces and decorative panels.

Ash burr is uncommon and rarely clean, often showing evidence of ingrown bark, knots, and irregular figure. When usable, it produces striking veneer with strong contrast and texture, suited to smaller luxury objects.

Ash works well with both hand and machine tools, bends readily with steam, and takes stain and polish evenly. It has little natural resistance to decay or insects, which historically limited its use to interior objects or items intended for controlled environments.

Within furniture and object making, ash has been used for boxes, cases, trays, turned components, tool handles, and fitted interiors, where its strength and pale tone provided both durability and visual restraint.