Ergonomic Office Chairs — Mackay

ISRI Seats Mackay stocks a range of high-quality ergonomic office chairs for workshops, site offices, mine site administration and corporate environments. Built on the same Isringhausen engineering principles as our heavy vehicle seats, our office chairs are designed for people who sit for long periods and need real support.

Our chairs are rated for all-day, multi-shift use and tested to handle occupants up to 135 kilograms — making them well suited to the demands of Queensland's mining, construction and industrial workplaces.

Visit our Paget showroom to try the range in person, or call us on 1300 11 ISRI to discuss your requirements.

The ISRI Big Boy Office Chair

The Big Boy Office Chair is ISRI's flagship ergonomic chair, combining advanced Isringhausen seating technology with practical all-day comfort. It meets the AFRDI rating for multi-shift 24/7 use and is built for occupants up to 135kg — a genuine heavy-duty office chair, not a standard retail product.

Available in standard and Pro configurations, the Big Boy suits mine site offices, workshop administration, control rooms and any environment where seating quality matters.

Key Features

• ✓ AFRDI rated — multi-shift 24/7 use up to 135kg
• ✓ High backrest with integrated headrest
• ✓ Cushion length adjuster
• ✓ Backrest adjustment
• ✓ Gas-lift height adjustment (460–560mm)
• ✓ Adjustable free-floating inclination
• ✓ Adjustable armrests
• ✓ Breathable charcoal cloth upholstery