Choosing a Sia chair for your workspace
For a single workstation, begin with the way the chair will be used throughout the day. Consider which adjustments matter to the user, whether armrests are wanted, and how the chair’s mesh and upholstery will fit the room. For shared desks, prioritize the adjustments that make it easier for different people to set up the chair; confirm the chosen model includes those features rather than relying on family-level options.
The listed family dimensions include a 40–51 cm seat-height range and a 42–47 cm seat-depth range, with a stated width of 67 cm. Use these as a starting point when checking desk clearance and user fit, then confirm the dimensions for the exact model and configuration. The collection lists a maximum load of 135 kg and a five-year warranty; verify the applicable specification and warranty terms before ordering.
Mesh, upholstery and appearance
Choose between the Sia 2 B Mesh Seaqual and Sia 4 B Mesh Fizz by comparing their stated mesh finishes and the look you want for the space. The Sia 4 B is described with Fizz-pattern Seaqual knitted mesh and fabric upholstery. The Sia 2 B is described with Seaqual knitted mesh. Across the collection, listed upholstery materials include mesh, fabric and Camira, and colour choices span neutrals and brighter shades. Base colours are also listed in several options. Check the product details to see which combinations are available for the model you select.
When chairs will be used in a shared or client-facing area, consider how the chosen colour and finish work with desks, screens and other furniture. If upholstery performance requirements matter, review the applicable fire-resistance information for the exact configuration. The collection attributes list BS 5852 Crib 5, CAL TB117-2013 and EN 1021-1 and EN 1021-2; confirm which specifications apply to your selected chair.
What to check before selecting a model
- Compare the Sia 2 B and Sia 4 B descriptions, mesh pattern and upholstery details.
- Confirm seat-height, seat-depth and back-height adjustment, plus whether armrests are included or omitted.
- Check the dimensions against the desk, floor plan and intended users.
- Review the colour, base and upholstery combinations available for the selected model.
- Ask for the relevant documentation if environmental or fire-resistance information is part of your purchasing brief. The collection lists a Declare Label and an available Environmental Product Declaration (EPD); confirm documentation for the specific chair.
Once you have identified the required configuration, review its full product specification and warranty details before finalizing your selection. Myntwork offers Boss Design Sia chairs on a monthly lease, which can be considered when planning furniture for a new or changing workspace.
Frequently asked questions about Boss Design Task Chair Sia
What is the difference between the Sia 2 B and Sia 4 B task chairs?
Both models are listed with Seaqual knitted mesh. The Sia 4 B Mesh Fizz is described with a Fizz-pattern mesh and fabric upholstery, while the Sia 2 B Mesh Seaqual is described with Seaqual knitted mesh. Compare their individual specifications for adjustment and configuration details.
Which adjustments are available across the Sia collection?
Family-level attributes list adjustable seat height and seat depth, lumbar support, and variation in back-height adjustment and armrests. Availability can differ by model or configuration, so confirm the details of the chair you are considering.
Can I choose different colours and upholstery for a Sia chair?
The collection lists mesh, fabric and Camira upholstery, a range of upholstery colours, and several base colours. The options available depend on the selected model and configuration; check its product details before specifying a colour.
What dimensions should I check when choosing a Sia task chair?
The listed collection dimensions include a 40–51 cm seat-height range, a 42–47 cm seat-depth range and a width of 67 cm. Confirm the exact model’s dimensions and compare them with the intended user and desk.
Does the Sia collection have environmental or fire-resistance documentation?
Collection attributes list a Declare Label, an available Environmental Product Declaration (EPD), and several fire-resistance standards. Ask for the documentation applicable to the precise model and upholstery configuration you plan to order.
