Measurement of a marathon base

[christineka]

I'm doing my math to try to figure out what may fit in my sienna's back seat. I know that numbers aren't the end all be all of what fits, but it does help in the figuring. I have never had a britax seat. What is the width measurement on the base of the marathon?

[joolsplus3]

The base itself is narrow, like 12 inches, but the wider part at the thighs and shoulders where it flares out is like 17-18 inches. That does make it nice for a big kid in a backless or no booster to be able to buckle up next to it, and it puzzles perfectly over a Radian or Frontier :thumbsup:

[christineka]

Thanks, I think it may be worth trying out then. I've got 48 inches to fit two rfing seats and a hbb. Or something...

[Jennifer mom to my 7]

I just measured, and it is about 18-18.5 inches at the widest, down at the thigh section (measured the decathlon and boulevard). The marathon would also have the latch bars to consider, like the boulevard. I know I fit a backless turbo under the side of the dc with the armrests in the lowest spots (screwed in of course;)). And dd could buckle okay. I think the back would puzzle okay. I know the nautilus is 18 at the backrest, 19 at the arms, and it angles out. CAn you find out if you can get a radian installed in the center with belt? and then maybe a rf driver side, and the nautilus passenger?

[BookMama]

This web site (http://www.carseatdata.org/cnt/resources/Car-Seat-Measurements) has measurements of many common seats, although not all the new ones.