Do other chrome plating shops have bigger tanks

Generally No.

As far as we know, and we know pretty much everybody in the business, most companies can support parts of around 2000 x 500 x 500 mm.

Our tanks sizes:

https://ashfordchrominghelp.zendesk.com/hc/en-us/articles/202602581-How-big-can-you-chrome-plate-parts

I you have large parts such as furniture, chairs, tables they simply will not fit. Usually if the parts are chromed they can be taken a part.

https://ashfordchrominghelp.zendesk.com/hc/en-us/articles/202530452-Can-you-re-chrome-furniture-such-as-chairs-and-tables