On Sunday, March 19, 2017 at 10:43:49 AM UTC-4, dpb wrote:
On 03/19/2017 9:39 AM, trader_4 wrote:
...

IDK what they used back then, but 2x4s today are not pine, they are Douglas Fir.

Only if you're in the western US or Canada (or Japan/China where most
Doug fir is exported to)...the kids in the lumber yards around here
don't even know what "Doug fur" is; some kind of pet, maybe???

--

The local HD and lumber yards here in NJ are full of 2x4s
made of Douglas Fir. I guess they do use other softwoods
too, but DF is a readily available, common and cheap choice.