Length Finishing Nail

What would be the recommended length of finishing nail to put up crown molding and baseboards?
Same question for 1/2" quarter round.
Equipment: Bostitch N62FNK-2 15 ga Nail Gun (angled) Bostitch SB-2IN1 18 ga Brad/Stapler Gun (Straight)
Regards, Ed
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Having never installed with an air gun, I use standard 6d 2" nails. I'm not sure how 6d translates into gauge. I do know when I pulled off the existing mouldings, the installers also used 2". Cheers, cc
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
don't know but the nail may need to reach thru various drywall thicknesses into the lumber below, so a couple of sizes may be needed depending on your dimensions.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

You want a nail length than guarantees at least least 3/4" penetration into the framing members, but no more than 1". so 7/8" more than the thickness of the molding plus the thickness of the sheathing.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:

I have been told that to prevent splitting the molding you should dull the point of the nail by tapping it with a hammer. That is supposed to result in pushing the wood fiber through instead of spreading it.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.