The standard overhang for kitchen island countertops is 12 inches.
Kitchen bar counter width.
A few off the shelf standard countertop lengths exist as well such as 4 6 8 and 10 feet.
Counter height bars stools are used with 35 to 37 inch high counter tops.
A raised bar should be between 42 to 48 inches high.
Most kitchen countertops are around this height to match the height of standard kitchen appliances.
The standards say each person needs 24 inches 61cm width and 12 inches 30cm depth to eat comfortably.
The standard kitchen slab width is 25 inches which for some brands may mean up to 25 1 5 inches.
Kitchen dimensions bar eating.
Sometimes a kitchen island or transition space between kitchen and family room will also measure 36 high.
A standard height kitchen counter will be 36.
Counter height bar stools usually measure 23 to 28 inches from the floor to the seat.
Raised bar top.
I d still go for 15 inches 38cm minimum.
However as with regular countertops custom kitchen islands may have different overhang measurements.
Kitchen island countertop.
A kitchen eating bar is at the standard bar height of 42 inches 107cm.
Some older homes will have counters that vary in height generally a little shorter than the standard kitchen countertop height but if the home has been custom designed for a taller person.
Personally i think 12 inches is a little thin.
In any case this standard width fits the standard kitchen base cabinet width of 24 inches.