DIY D-Sub jumper box DB25-DB25/DB9-DB9/etc

I want to make my own D-Sub jumper box like:

**broken link removed**

Ordinarily, I'd just buy such a thing but this guy wants $16 which is
an outrageous price for something so simple!

It looks like all he is doing is taking a solder cub DB25 male and female
adapters and then adding a circuit board in between the two rows. What
thickness circuit board would be best for making my own jumper box?

I guess I'm going to have to get a double-sided circuit board...

Thanks!

Ilan

1/16 inch is common and solid enuf. I would use perfboard and run wires, there's not that many. Radio Shack 276-149 would probably work.