3 SEAT BENCH HELP!!! Width measurement

[thesquirrelpatrol]

Hi,

We are taking delivery of a new Cali beach in May and I was wondering if any really helpful owners with the 3 seater bench could give me an exact measure of the width of the rear seat.

I've ordered a couple of exped self inflating mattresses as a topper and want to confirm they will fit.

Thanks!

 

[Custardtart]

Seat base is 59" wide and there's about half inch gap either side between the seat edge and van.