We are thrilled that you are considering a Samsung range for your home momsnewstove.
I have shared a Samsung link below that will have all the grates and the features that you love on this stove.
https://www.samsung.com/us/home-appliances/ranges/gas/bespoke-6-0-cu-ft-smart-front-control-slide-in-gas-range-with-air-fry-wi-fi-in-white-glass-nx60bb851112aa/#specs
I have also shared the website below of our authorized distributor for parts and accessories. Please visit the website for a center grate that is compatible with this Samsung range.
http://www.samsungparts.com/CustomerService.aspx
Should you need more assistance, please feel free to get back to us via the following options:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
When you message us, provide us with this reference number 1145048089, it will help our team pull up your information.
Leo