The relevant piece of my current code is this:
CurrentBuilding:SetPrimaryPartCFrame(CFrame.new(math.ceil(Mouse.Hit.p.X + 2), math.ceil(Mouse.Hit.p.Y), math.ceil(Mouse.Hit.p.Z + 2)))
How must I alter this to round to the nearest 3?
My intention is to create a grid, with grid spaces 3x3 studs. What methods must I use?