Foam rubber blocks

[Let'sgoflying!]

I need a chunk of ‘hard’ foam rubber, ~ 16” x 4” x 2” to jamb between two seats so’s stuff won’t fall between them.
It has to be something I can cut to fit the shape; knife/hotwire etc
Where to get that?

 

[Magman]

Make a cardboard mold and “ Great Stuff” ?

 

[Bell206]

Where to get that?

Fabric stores and craft stores usually have a good selection of foam types with fabric stores better if you have one close.

 

[Chip Sylverne]

Pool noodle?

 

[Old97]

Maybe old lifejacket or pool noodle/pool float cut to size and get someone to sew a cover for it. Roll up a towel? Stadium seat cushion? Maybe cheaper than trying to buy raw material

 

[Let'sgoflying!]

Appreciate the ideas.
Also found this - in case anyone searches the same, later:

Buyfoam

 

[GeorgeC]

https://www.google.com/search?q=seat+gap+filler

 

[Omalley1537]

Car/household upholstery shop if you need local.

 

[Let'sgoflying!]

https://www.google.com/search?q=seat+gap+filler

That’s what reminded me!
I need to measure mine.

 

[Domenick]

Electronic equipment, audio and video, is often shipped in closed-cell foam--this is the firm stuff. They get a lot of it. In the past I've gotten it for free.

 

[robin ardoin]

Appreciate the ideas.
Also found this - in case anyone searches the same, later:

Buyfoam

I've used them for gun/optics case foam. Good firm to deal with.