The box was 92 pounds. That's the first number you need to know about the Serta Big and Tall executive chair. I know because I hauled it from the porch to my office myself, and my back filed a complaint. But the weight isn't the real constraint – it's the width. Mine came in those plastic-wrapped foam slabs strapped to a pallet. The box was 37 inches long, 29 inches across. My front door is 36 inches wide. The box just squeaked through, and I had to tilt it diagonal. If your door is narrower, you'll be unboxing on the porch.
But forget the doorway – the real trouble is the armrests. They're 27.5 inches apart, outside edge to outside edge. My desk has an opening of 26 inches between its legs. So the chair wouldn't slide under my desk at all. I was stuck with the chair back against the desk keyboard tray, arms hitting the underside. My first thought: return it. But I loosened the armrests – they were attached with bolts on the underside – and pivoted them inward slightly. That made it 25.5 inches, and now it tucks under. Not ideal, but it works. If you've got a smaller desk, you should probably pass.
Now the other number that matters: weight capacity. This chair is rated for 400 pounds by Serta. But I've been burned before – I had a "big and tall" chair that announced 350 lbs and gave up at 280. So I weighed myself (hey, I'm a pandemic eater). I'm 6'2", 260 lbs, and I've had the Serta for four months. The seat cushion is thick, maybe 5 inches, and it still feels dense. No sinking. The base is aluminum – I checked the metal, not just the sticker. It hasn't wobbled, and I roll around a lot. That might be because the wheels are on carpet, but so far, so good.
Now, the backrest. The chair back is 28 inches wide and 23 inches high. For my width (shoulders somewhere around 22 inches), it's fine, but not roomy. I'm tall, and the headrest – yeah, it ends at my upper neck, not the back of my skull. I expected that; this isn't a custom fit. The lumbar support is a plastic curve, and it pokes my mid-back unless I tweak it. It's adjustable via a knob, but the range is limited. Honestly, I just bought a small lumbar pillow and tossed the built-in one. The chair cost me $349 on sale; the pillow was $12 – cheaper than returning the whole thing.
I set it up alone. Took about 40 minutes, mostly because the instructions were just pictures. The tools are included, which is good, because the Allen wrench that came with it stripped after ten turns – I used my own. The chair has a pneumatic lift. I adjusted the height so my feet are flat, my knees at 90 degrees, and the armrests at desk height. That took a week of tweaking. Let me tell you about the first week anyway: I kept messing with the tilt tension. There's a knob under the seat that adjusts backward tilt. Too loose and you feel like you're in a rowboat. I had to watch a YouTube video by someone named "Furniture Fix Frank" to figure out which direction to turn.
If you're thinking of grabbing this chair, start with the basics: measure your desk opening. Measure your door width. And know your own weight, if you're heavy. Then consider the headrest– if you're 6'4" or taller, it'll be a neck massager, not a headrest. But if you're like me, around 6'2", and your desk has at least 28 inches of clearance, and you're not expecting a luxury car seat, this is a solid buy. That said, I've been through enough chairs to know the one factor that decides everything: where the seat pan ends relative to your legs. On the Serta, the seat depth from the back to front edge is 21 inches. My legs from butt to back of knee are 18 inches. There's a three-inch gap, which is why my thighs feel supported and my feet stay planted. If you have longer femurs, you might find the edge digging in. That, more than any marketing line, is what makes or breaks a chair.
For me, the Serta Big and Tall is the first chair that's lasted past the honeymoon without a wobble. But I only found that out because I actually took measurements before I bought it. Or, well, after I bought it and realized my mistake. I should have measured the desk first. You can learn from my idiot moment: Setting Up a New Office Chair: The First Week Matters More Than You Think says to spend the first week adjusting angles, not just sitting. That's good advice. And if you're wrestling with a tight desk like mine, The Biggest Mistake People Make With Budget Ergonomic Chairs is basically about seat depth, which is exactly where my issue lived. Start there. For the price, the Serta is a workhorse. Just bring a tape measure to the party before the box hits your porch.