Best Office Chair for Sitting All Day (UK)
Sitting all day changes what matters — comfort at first isn’t enough.
The problem isn’t just softness — it’s whether a chair still feels good after hours of use.
These picks focus on proper support, breathable materials
and chairs that stay comfortable over a full working day.
Best overall – SIHOO M57 Ergonomic Office Chair
Best value – IKEA MARKUS
Best premium – Steelcase Series 1
Treeyo reviews and updates guides periodically to reflect product changes and long term reliability.
Last reviewed: May 2026
Products considered: 8
Unsure what matters most? Read: Are Expensive Office Chairs Worth it? → A simple guide to what actually makes a difference.
Sitting all day exposes the difference between a chair that feels fine and one that actually supports you. Many chairs are comfortable for the first hour, but become distracting or uncomfortable as the day goes on. This usually comes down to lumbar support, airflow, and how well the chair holds your posture without constant adjustment.
We focused on chairs that stay comfortable over long sessions — not just ones that feel good at first
Simple way to think about it:
If you want the safest all-day option → SIHOO M57 Ergonomic Office Chair
If you want something simple and proven→ IKEA MARKUS
If you want better support and adjustability → Steelcase Series 1
BEST OVERALL
SIHOO M57 Ergonomic Office Chair
A well-balanced ergonomic chair
that holds up over long sessions
The M57 works because it supports your posture without needing constant adjustment. The mesh back keeps airflow moving, which matters more than you expect when sitting for hours. The adjustable lumbar support helps reduce fatigue over time, not just at the start. It’s not a premium chair, but it solves the biggest problems people run into when sitting all day. It’s the kind of chair you don’t really think about once you’re sitting in it — which is exactly what you want for full-day use. A strong all-round choice if you want something dependable.
Typical price £150 – £190
Price checked May 2026
BEST VALUE
IKEA MARKUS
A simple, durable chair
that’s easy to live with day to day
The MARKUS doesn’t have many adjustments, but that’s part of the appeal. It’s designed to work without much setup, and the high back provides consistent support across long sessions. Comfort isn’t perfect for everyone, but it’s reliable and holds up well over time. If you want something straightforward that won’t get in your way, this is a safe choice.
Typical price £160
Price checked May 2026
BEST PREMIUM
Steelcase Series 1
A more refined chair
designed for full-day use
The Series 1 offers more precise adjustability, which makes a real difference when you’re sitting for long periods. You can fine-tune the lumbar support and seating position so it stays comfortable throughout the day. It’s a step up in build quality and ergonomics. If you’re working from home full-time, this is where the difference starts to justify the price.
Typical price £400 – £600
Price checked May 2026
If you’re comparing mainly on price, see: Best Office Chairs Under £200 →
Why these three?
When you’re sitting all day, the issue isn’t features — it’s how the chair feels after a few hours. Many cheaper chairs feel fine at first but become uncomfortable as your posture shifts. The chairs above focus on consistent support, airflow, and designs that reduce fatigue over time.
If back support is your main concern, see: Best Office Chairs for Back Pain→
Buying advice
Don’t judge a chair by how it feels in the first 10 minutes.
Think about:
- whether the back support still feels right after a few hours
- whether the seat gets warm or uncomfortable
- how much you need to adjust it during the day
- whether it encourages a natural sitting position
A chair that disappears while you work is usually a better choice than one you’re constantly adjusting.
FAQ
Is a soft chair better for sitting all day?
Not necessarily. Softer chairs can feel comfortable at first but often lack proper support over time.
Is mesh or cushioned better?
Mesh tends to work better for long sessions because it improves airflow and reduces heat build-up.
Do I need a premium chair?
Not always — but if you sit all day, better support and adjustability can make a noticeable difference.
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