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A Chair Built Around You — Not the Other Way Around

The Sitmatic GoodFit Custom Ergonomic Office Chair is one of the most configurable professional chairs available — engineered for individuals who need a precise, body-specific fit rather than a one-size-fits-most compromise. Whether you're managing chronic back pain, recovering from an injury, or simply investing in long-term spinal health, this chair delivers clinical-grade adjustability in a premium, durable package.

Trusted by ergonomic specialists, corporate wellness programs, and professionals across healthcare, tech, and executive environments.

Key Features & Benefits

• Fully custom fit — Extensive adjustments for lumbar support, seat depth, armrest height/width/angle, and back angle ensure the chair conforms to your unique body dimensions
• Advanced lumbar support — Precision-targeted lower back support reduces chronic pain and fatigue from prolonged sitting
• Upholstered headrest — Height and angle adjustable to support your neck and upper spine throughout the day
• All-day comfort materials — High-quality cushioning and breathable upholstery prevent pressure points and overheating during extended sessions
• Posture & spinal alignment — Ergonomic geometry promotes neutral spine positioning, reducing strain on your neck, shoulders, and lower back
• Pneumatic seat height adjustment — Smooth, tool-free height adjustment for optimal desk and monitor alignment
• Professional-grade construction — Built for demanding daily use in corporate, healthcare, and executive environments
• Manufacturer's warranty included — Backed by Sitmatic's quality guarantee

Specifications

• Model: Sitmatic GoodFit Custom
• SKU: GFU33MF SC HR CS 1M Cat 5
• Seat Height: 16¾" – 21¼"
• Seat Pan: 21"W × 19"D
• Backrest: 19"W (widest point) × 23"H
• Lumbar Support: Adjustable advanced lower back system
• Armrests: Multi-position height, width, and angle adjustable
• Headrest: Upholstered, height & angle adjustable
• Recline: Tilt and back angle adjustment mechanism
• Seat Depth: Adjustable to accommodate varying leg lengths
• Manufacturer: Sitmatic (ergonomic seating specialists)
• Shipping: Free shipping included

⚠️ Made-to-Order: Each chair is made-to-order based on your selections to ensure the best fit and performance. Because of this, orders are final—but we're here to help you get it right.

Ideal For

• Professionals working 8+ hours daily at a desk
• Individuals with chronic back pain, herniated discs, or previous spinal injuries
• Executives and managers seeking premium, personalized ergonomic seating
• Corporate offices and HR teams investing in employee health and productivity
• Healthcare, lab, and education professionals requiring precise postural support
• Anyone who has struggled to find a chair that truly fits their body

Frequently Asked Questions

What makes the GoodFit Custom different from a standard ergonomic chair?

Most ergonomic chairs offer a fixed range of adjustments designed for an "average" body. The Sitmatic GoodFit Custom is built around individual body specifications — seat depth, lumbar position, armrest geometry, and headrest angle are all independently adjustable to match your unique proportions. This level of customization is typically only found in clinical or high-end executive seating.

How do I know which configuration is right for my body?

Our certified ergonomic specialists can guide you through a professional assessment to identify the exact settings and options that match your body dimensions and work habits. We offer ergonomic consulting services both in-person at our Bay Area showroom and virtually for remote clients nationwide.

What are the weight and height limits for this chair?

The Sitmatic GoodFit Custom is designed for standard professional use. If you require a heavy-duty chair rated for higher weight capacities (up to 500 lbs), we also carry the ergoCentric e500™. Contact us to discuss which model best fits your needs.

Is the chair compatible with sit-stand desks?

Yes. The pneumatic seat height adjustment (16¾" – 21¼") pairs well with most sit-stand desk configurations. If you're building a complete ergonomic workstation, our specialists can recommend compatible desk heights and monitor positioning to complete your setup.

What upholstery and color options are available?

The GoodFit Custom is available in multiple fabric and upholstery options. Contact us directly or book a consultation to review current material selections and lead times for your preferred configuration.

How long does delivery take, and is assembly required?

Lead times vary by configuration. Free shipping is included on all orders. Most chairs arrive partially assembled and require minimal setup. Our team can advise on professional installation options if needed for larger corporate orders.

Does this chair come with a warranty?

Yes — the Sitmatic GoodFit Custom includes the manufacturer's warranty covering defects in materials and workmanship. Contact us for full warranty terms and support.

Can I try this chair before purchasing?

We invite you to visit our Bay Area showroom to test the GoodFit Custom in person. Our ergonomic specialists will walk you through the adjustments and help you find your ideal fit before you commit. Schedule a consultation here.

Why Ask Ergo Works?

With 30+ years of ergonomic expertise, Ask Ergo Works is not a general furniture retailer — we are certified ergonomic specialists dedicated to matching people with products that genuinely work for their bodies and workflows.

• Certified specialists — Our team holds professional ergonomic certifications and stays current with clinical research and industry standards
• Professional assessment process — We evaluate your posture, work habits, and environment before recommending any product
• Personalized recommendations — No generic advice; every recommendation is specific to your body, role, and workspace
• Enterprise & B2B experience — We serve corporate offices, healthcare systems, labs, and educational institutions with volume purchasing and on-site support
• Post-purchase support — We're available after your purchase to help with setup, adjustments, and ongoing ergonomic guidance

Not sure if the GoodFit Custom is right for you? Book an ergonomic consultation and let our specialists help you find the perfect fit.