How draw this part ?
One sketch and three extrudes.
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Step 1:
sketch on the top plane (I used the circle pattern for the holes)
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Step 2:
extrude the following regions 7mm.
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Step 3:
Using the same sketch, extrude these regions 25mm from the top plane.
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Step 4:
And finally extrude the last regions 11mm (25-14=11) from the top surface.
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Step 5:
Here is your part with one sketch and three extrudes. You could also do it other ways but this is what I felt was the most simple.