The Top Guitars offers various scale lengths. You should choose your scale length based on the tuning you plan to use on your instrument.
For guitar, you should choose a relatively shorter scale length (24.75" to 25.50") if you plan to tune your guitar to EADGBE, or something similar.
You should choose a relatively longer scale length (25.50" and above) if you plan to down tune - for example, BEADF#B - or something similar.