When cases like our GRC-10X8 are loaded they may be too heavy to carry around all of the time. To help alleviate the weight burden for this you can transport your GRC case using a caster board.
The GA-100 is not an ideal fit for the GRC-10X8. This will hold the weight and transport the GRC from one spot to another, sure. However, there will be some overhang according to the below dimensions.
GRC-10X8 dimensions: Exterior Length - 25.5 "
Exterior Width - 20.75 "
GA-100 dimensions: Exterior Length - 22.2 "
Exterior Width - 17.7 "
The GA-300 has been discontinued. That was the board that fit the 10X8.