"Ray K" wrote in message
...
I'm building an outdoor planter box(about 6.25"x6.25"x13 feet)that will
attach to the side of my house. The pine lumber was nominally 1x8, ripped
to 6.25" and with a true thickness of 3/4". How should I select a screw or
nail to attach the 7.75 x 6.25" end cap? I only have 3/4" to stick the
fastener into, which means that there is only 3/8" of wood on either side
of the fastener.

The concern is splitting. Number 7 screws, 1.5" cause splitting, even if I
predrill; #6 screws can work if I predrill everything and am careful to
make the pilot holes perfectly parallel to the face of the lumber. With
about 40 fasteners required, this is tedious.

The original box was held together with 1.5" staples. I don't own a
stapler, but renting one is a possibility. Any suggestions for nail sizes?

Thanks,

Ray

I would put cleats in the corners and then use wood screws into the cleats.
This after gluing the all the involved wood surfaces.
It is important to consider the weight when this box is filled with soil and
water is added either by rain or irrigation.
This is also a consideration when attaching to the house

Charlie