Entails using adhesive in addition to nails even if you re installing a solid wide plank floor.
Face nailing needed for 12 inch wide plank floor.
Regardless if installing a 3 wide engineered hardwood or a 5 wide engineered hardwood plank you are not using any more fasteners despite the increased width.
As this prevents the hardwood floor from expanding.
It just depends on how narrow you indoor humidly range is.
Face nail only the last row if it will be.
A 4 wide plank is still begging to be face pegged as i mentioned also in the article.
On 8 wide boards you may choose either 2 or 3 nails per row.
On 10 and 12 wide planks use 3 nails per row.
The main purpose of face nailing is to minimize a cupping appearance with wide plank floors.
In renovation work most product is staple nail down over wood subfloors.
So if all this sounds like too much work just buy the standard 3 1 4 wide t g strip floor and blind nail it simply and easily with the flooring nailer.
This is done by introducing glue to the nailing process.
Extremely wide boards 8 to 12 inches wide require three nails instead and boards under 4 inches use one nail.
Regardless of how many nails you choose to use per row you are replicating the method of using hand forged nails hundreds of years ago.
Which works very well with plank flooring to.