I recommend using stud increments when building everything, this makes it easier to do a lot later and will solve your problem. I often use 0.05 as my increment but also 0.1 and 0.25.*
I mean you can do it unscaled but that is not a good habit if you want to go further into building. It makes it difficult for you to duplicate stuff and to make things look organized. I would recommend 0.05 or 0.1 as bricks get spawned in 1x1x2 and that makes it easier to scale and move with precision.