32, just started maxing out a few months ago.

Prior to that, I did 20% to play catch up because before 27, I didn't contribute anything at all

Both age 46, both max to $18k. Dh gets 6% match, I get zilch. Will plan to do $24k in 4 years.

DH and I are 35 and 36. We max out, but have only been doing that for a year. But we've been close to maxing out for 3 years. We have maxed Roth IRAs for 5.

35 and 33. We've always maxed out. Currently, I'm getting a 6% match and my wife is getting a 5% match, so it's about $27k for me and about $24k for her; $51k per year total.

52 and 54, we each contribute $24 K

Mid 40s, max out. And actually looking forward to turning 50 in a few years, so I can tack on the extra $6k

39 & 41. Both of us the full 18k each.

35, max

Over 50, do the $24k. Also do a profit share (I think the limit is $36k this year).

While maxing a 401k is an important building block, it is definitely not the end of our retirement savings.

35 and I max out. But that only started last year.
I get an 8% match.

43 and 45, we have both maxed out for 15 years.