A: Hi Jan, we do offer bottom grid options on Homedepot.com that may suit your needs. Please review the products at the link I have provided below to see if any of the products will work for your project.
http://www.homedepot.com/s/HOUZER%2520bottom%2520grids?NCNI-5
We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot!