What size laptop stand do I need?
That depends on the size of your laptop, here is a simple guide...
13 inch or smaller laptops (such as the Apple MacBook) and netbooks are a perfect fit on the regular stand.
15 inch laptops fit well with either stand. The small plastic feet under your laptop will fit on the 'Regular' stand, but the edges of the laptop will overhang slightly. On the 'Large' stand a 15 inch laptop will slightly underhang the edges. The choice is up to your preference, a 15 inch MacBook Pro looks great on either.
The useable areas of the stands are:
Regular: (width x depth) 325 x 225 mm
Large: (width x depth) 390 x 265 mm
If you are unsure simply measure the feet underneath your laptop to see which stand fits.