Good Morning,
I'm currently using the CEILING function to round up to the nearest .5. My spreadsheet is based on square footage, what I need is a formula using the same rounding function but anything less than or equal to 4 is 4. Maybe the IF function isn't what I need?

For example

(We use Width by Height)

If I have a 35 x 35 it'll equal 8.51 Square feet and it'll round up to 9. My equation right now is =CEILING(F4,0.5) the 8.51 being the F4 CELL.
If I have a 12 x 12 it'll equal 1 square foot, but I need this to equal 4.

4 is our minimum square footage, anything less than or equal to 4, should be 4.


Thank you ahead of time and any help is appreciated!