Ondarreta Tam Backless Stool

Ondarreta Tam Backless Stool

The Ondarreta Tam Backless Stool is an office stool for people who want a simple, backless seat made with steel, stained oak and birch plywood. Its defining difference is its open, armless and unupholstered design, which keeps the stool visually and functionally straightforward. It is PEFC certified and identified as circular.

Materials and finish options

The mix of steel, stained oak and birch plywood gives this stool a combination of metal and wood finishes for a workspace. Because there is no upholstery, the design avoids a fabric-covered seat and keeps its materials visible. This makes it a useful option for buyers seeking a wood-and-steel stool rather than an upholstered office chair.

Base color choices span neutral shades such as white, grey, beige, black and brown, as well as blue, green, pink and red. These options let you coordinate the stool with a range of office interiors without changing its backless format. The listed finish also includes stained oak with birch plywood.

Backless stool functionality

The Tam has no backrest, armrests, headrest or lumbar support, and it has no mechanism. That makes it a better fit for settings where users want a straightforward stool and freedom to get on and off easily, rather than an adjustable chair for extended supported sitting. Its backless form also avoids adding a backrest to the seating arrangement.

This model does not offer seat-depth or back-height adjustment, so there are fewer settings to manage when positioning it. The supplied seat-height information is inconsistent, so no adjustment claim can be confirmed here. Consider the stool when its fixed configuration suits the way people will use the space.

For offices and shared spaces

As a stool in Ondarreta’s TAM collection, this model can be considered for office areas that need a simple additional seat, including shared work settings. Its unstuffy, unupholstered construction may also suit spaces where a fabric seat is not wanted. It is not a substitute for a chair with back support or ergonomic adjustments, so match it to brief or flexible seating needs rather than assuming it provides those features.

The stated maximum load is 135 kg, giving buyers a clear reference when assessing suitability. The product carries an EN 16139 Level 2 standard classification and PEFC certification, while its circular designation is another point to consider when comparing seating options. A two-year warranty is included.

Choose the Ondarreta Tam Backless Stool when a steel-and-wood office stool, a backless profile and a choice of base colors meet the needs of your space. Its defining limits are equally clear: no upholstery, backrest, arms or built-in mechanism. That makes it easiest to assess as a simple, fixed-format stool rather than a fully featured task chair.