Off topic:Merging File

Question

[prt-hntr]

I have two files like file1.dat and file2.dat I would like to combine the file without changing the format of file1 and file2. file1(2space)file2.

for example File1:

    1 2 3  4 5             
    6 7 8  8 9

File2:

      8 6 4258
      8 5 9927

The result i want is

                         1 2 3 4 5(2space)8 6 4258
                         6 7 8 8 9(2space)8 5 9927

I have tried with paste -d ' ' file1 and file2 but got only one space between the file. I have 5 column and thousand of rows in files.

thank you in advance

PRT