Replacing an existing sink into an existing worktop

What is the Existing Sink Overall Width (left to right) ?

What is the Existing Sink Overall Depth (front to back) ?

How many bowls does your existing sink have. ?

What is the Existing Sink Base Unit Overall Width (left to right) ?
(This means the cabinet under the Bowl/s of the Sink)
Is the Existing Sink Base Unit a single base unit or a double. ?
If the Existing Sink base unit is a double, has one half got a
working drawer in it or a dummy drawer (drawerfront only) ?

If you intend your New Sink to have a draining board, which side
will you require it to be on. ?

What is the Overall Depth (front to back) of the Worktop?

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Fitting a New Sink into New Worktop

What is the New Sink Base Unit Overall Width (left to right) ?
(This means the cabinet under the Bowl/s of the Sink)

Is the Existing Sink Base Unit a single base unit or a double. ?
If the Existing Sink base unit is a double, has one half got a
working drawer in it or a dummy drawer (drawerfront only) ?

If you intend your New Sink to have a draining board, which side will you require it to be on?
What is the Overall Depth (front to back) of the Worktop?

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Sketches

An Example of Overall Sink Sizes

Number of Bowls in Sink Base