Since a floating floor is usually installed over a thin foam pad there is a bit of give to the floor.
Install kitchen island to floor.
If you re installing the island on the subfloor before you put new flooring in your kitchen you may need to add a flooring block below the cleats to raise the island cabinet off the subfloor.
I would recommend setting all the base cabs unattached just clamped together then draw a line on the floor around them and remove the flooring giving yourself a good 1 4 inch clearance margin.
One important measurement to watch is the height of the underside of countertop to the finished floor.
Many people prefer to have them attached to the floor rather than remaining freestanding.
Trace along the four corners of the island onto the floor with a pencil.
Instead of fastening them to an interior wall they must be secured to the floor.
This give will stress the miter joint of the counter top and potentially cause a gap to open.
Lay the finish flooring straight onto the subfloor with no additional underlayment.
Trace around the block with a pencil or marker.
Provided that you have enough space in your kitchen it can be an attractive addition.
For bar stools allow a minimum width of 600mm for every user and around 150mm between each one although these measurements should accommodate personal preferences and the style of bar stool you choose.
Most kitchen cabinet islands are not large but can still be heavy.
For island seating you might choose a raised breakfast bar table height surface or even a coffee table.
How to install base cabinets in center islands.
Kitchen island install quick and easy do it yourself items needed for build off the shelf floor cabinet with matching side panels and kick plate.
Place the cabinet assembly the island base right side up on the kitchen floor and position the island precisely where you will install it.
An underlayment adds another 1 4 inch to 1 2 inch to the total flooring thickness.
Place one wood block on the floor aligning its outer edge with the new outline that you traced on the floor.
Measure in from the traced lines using the side and toe kick thickness dimensions and mark the floor.
The flooring block leaves enough clearance to install your flooring over the subfloor with the cabinets at the correct height leaving room for tile or hardwood.
Repeat for each wood block.