Chiroform Big | Task Chair

Chiroform Big by Allseating is a separate heavy-duty task-chair configuration for healthcare administration and staff work areas. Its larger seating format and dedicated component choices help distinguish it from the standard Chiroform Ultra models.

The 23.5-inch-wide seat and 22.25-inch-wide back offer more space than a standard compact task chair. The dedicated Deluxe Tilter Heavy Duty control is paired with a 5.5-inch cylinder, so this model can be selected by its actual dimensions and capacity rather than appearance alone. Check desk clearance and individual fit before ordering.

Features and configuration options

• Highback heavy-duty configuration with Deluxe Tilter Heavy Duty mechanism.
• Manufacturer-rated for users up to 500 pounds.
• Memory-foam seat: 23.5 inches wide and 21 inches deep.
• Seat-height range of 17.75–23.25 inches in the 2026 price guide.
• Armless or adjustable-loop-arm specification.
• Heavy-duty carpet casters are standard; hard-surface casters and bumper trim are optional.

Choose the configuration that fits the workstation and review the manufacturer’s dimensions and user guide before ordering. Covered by Allseating’s 12-year limited warranty, subject to the manufacturer’s terms and component-specific exclusions. Standard lead time is typically 4–6 weeks.