Sink Cutout Pack

The one cut in a kitchen you cannot undo

The one cut in a kitchen you cannot undo, specified properly. Whether the sink fits the cabinet at all, the corner radius each material tolerates before it cracks, what every mount demands of the counter, and where the faucet holes go. Then the stack-up nobody does until the old sink is out: whether the drain will actually reach the wall. A 9in undermount bowl with a compact disposal clears a 15in stub-out by a quarter of an inch — two inches more bowl and it does not drain at all. 10 pages, printable, with a fill-in spec sheet for the fabricator.

Look inside

Two full pages from the pack, exactly as printed. Click either to read it at full size before you decide.

What is in it

• Smallest base cabinet for every sink width, and why 33in needs 36in
• The counter-depth limit that stops a 24in sink fitting a standard run
• Minimum inside corner radius by material — where cutout cracks start
• The front apron below which a stone shop should rod the rail
• Where the cut edge must be sealed, and where sealing does nothing
• What each mount demands, including why undermount and laminate never mix
• Undermount reveals: positive, flush and negative, and living with each
• Faucet layouts and spacings, and the accessory holes people forget
• What actually supports an undermount — and why adhesive does not
• Drain falls, and why steeper is not better
• Whether the drain will actually reach the wall — the stack-up from counter to stub-out
• Headroom by bowl depth and disposal size, and where it goes negative
• The deepest bowl that still drains, by stub-out height — the number for the showroom
• Why a kitchen refit so often ends with somebody moving the stub-out
• The order of work, and the points of no return
• Fill-in cutout spec sheet for the fabricator

The pack complements the free calculators — they do the arithmetic, it carries the limits and the checks they cannot know.