Iteadstudio does similar.
http://imall.iteadstudio.com/open-pcb/pcb-prototyping.html?p=1
Up to 5cm x 5cm
Up to 5cm x 10cm
Up to 10cm x 10cm
Larger than 10cm x 10cm
Larger than 20cm x 20cm
Larger than 30cm x 30cm
Within the "Larger than" categories they have a large selection of "Up to" subsizes as welll:
5x15, 10x15, 15x15, 5x20, 10x20, 15,x20, 20x20
5x25, 10x25, 15x15, 20x25, 25x25
5x30, 10x30, 15x30, 20x30, 25x30, 30x30
>30x30 looks like custom quote?
Also 4 layer, color options (Green standard; Red, Blue, Yellow, Black, White), material thickness options, (0.4mm, 0.6, 0.8, 1.0, 1.2, 1.6, 2,0), surface finish options, test options.
I have purchased the 5x5cm and 10x10cm. If you're clever in Eagle, you can create neat shapes too.