Hello, The Hubble vessel sink dimensions are : Outside dimensions: 14" x 14" x 5" Inside dimensions: 13.75" x 13.75" x 5" Additionally the link below will guide you through the sink spec-sheet https://www.sinkology.com/wp-content/uploads/2017/12/Hubble-BRV-1405BC-Spec-Sheet.pdf Thanks!
The Inner Sink Dimensions are the measurements taken from inside the sink basin, so the part of the sink that will fill up with water, not including the edge of the sink.
We recommend using the mounting ring sent with the sink, it's a large metal washer taped to the box flap. This sink is designed to fit into a beveled hole in the countertop surface and secured by the mounting washer underneath the surface.
We recommend setting the sink into a 2 3/4inch hole with 1/8th inch bevels around the edge, we didn't specifically design this sink to fit with any mounting ring so we can't say how it would work.
The sink is designed for a 2-3/4th inch hole with a beveled edge but a mounting ring would work.
This unit uses the following drain kit: http://www.homedepot.com/p/SINKOLOGY-Decorative-Bath-Grid-Drain-without-Overflow-in-Oil-Rubbed-Bronze-GP15-OB/203711807.
This sink is only intended to be installed as a vessel. It cannot be used as a drop in.
This is a great question. The sink specified can be vessel or top mounted. With this feature the customer has the luxury to semi recess the sink to a length of their choice.
For more some more updated reference, the drain is a separate item, but if you need a replacement washer then let us know right away and contact us at Support@sinkology.com.
Thank you for your recent inquiry with The Home Depot.This copper sink is designed to be installed as a Vessel sink or above counter, inner dimensions are 13.75 in. Round 5 in. deep. We have a large selection of faucets for vessel sinks. For any other questions, please call us at HomeDepot.com Customer Service 800-430-3376. Thank you for shopping Home Depot.