Arbee wrote:
Hi. I'm going to be installing some 3/4" poplar trim on 3/4" wood
backing and need some advice. I have both 16 and 18 gauge nailers.
Because of the style of the trim, I'm going to have to nail pretty
close to the edges, so I figure the 18 gauge is the best choice. We
got the trim custom made and the wife will kill me if I split it.

Is this going to be edging? If so, have you considered just using glue
and holding it in place with masking tape while the glue dries?

I have a 2 part question. First, if I go with the 18 gauge, would the
3/4" poplar just create a bunch of 18 gauge pretzels and second, since
the brads are only 1.25", is 1/2" penetration into the backing enough?

I've used 18 gauge nailers with oak. Poplar will not be an issue. As
for penetration...is there any way you can use longer brads?

I guess the other question would be, if I go with the 16 gauge, is it
likely to split the wood?

Certainly more likely. Have you considered pre-drilling clearance holes
in the trim and nailing by hand near the ends?

Chris