for X = -2500, 2500, 512 do
    for Z = -2500, 2500, 512 do
        local Part = Instance.new("Part")
game.Workspace.Part.BrickColor = BrickColor.random()
wait(0.5)
        Part.Anchored = true
        Part.Locked = true
        Part.Size = Vector3.new(512,3,512)      -- By Bouyer the Destroyer
        Part.CFrame = CFrame.new(X,0,Z)
    end
end