Not to be a spoil sport but if this is a railing around a deck OR any other for that mater.... you should check with a local contractor in your area.. There are codes for spacing spindels as to many kids have hung themselves from them. Around here if I remember right a baseball should not fit. But I haven't put up a deck in 10 years, but good thing to check an inspector can ruin your day if you have to redo it when half done.