You might do better with stainless steel screws.
With them you will not have any rust coloration running down the boards and you can back them out and reuse them.
Either way you will want enough length to go through the boards and 1 inch into the rails.
Screws - #8. Nails - 10 penny.
Nail guns - standard guns that can handle up to 2 inch headed.
Screw guns - any 3/8 inch drill with a screw setting head.
I did my 200 foot fence with screws and it was very easy.
P D Q
have to redo the fence I put in 25 years ago and somehow I have gotten
<BR>older? There is no joy in the prospect of handnailing each
plank. I see <BR>nail guns in many price ranges and guages..
including staples. I have a <BR>compressor, no problem
there.<BR><BR>What would be the proper guage and length of nail to put up 1/2