With a dip of only 3/16" i would build up the low spots with several layers
of tar paper.
Start with a wider strip and feather the layers inward, building up layers
as the floor dips, until you get the floor flat. Using self leveling floor
lever is another option, another post recommended ardex. This stuff is
WONDERFUL for leveling a floor, but for 3/16" it may prove to be more of a
hassle. Plus, with tarpaper, you can fasten through it to your
ubfloor. --dave



Another post suggested ardex. this is WONDERFUL stuff for leveling a
floor, but for the amount you need to fill, it would be difficult.

"ksanny" wrote in message
m...
Hi,

I'm trying to put in 3/8 inch engineered hardwood flooring myself, and
would like some help.

We have 3/4 inch OSB as our subfloor in our bedroom upstairs. On some
advice, we started to nail 3/8 inch CDX plywood to add some more
structure to the subfloor. We chose 3/8, so that we would be level
with our bathroom flooring.

While nailing down the plywood, we noticed that the floor dips
downward towards the entraceways to the room. Starting about a 1.5
feet before the entrance to the bathroom as well as the hallway, the
floor starts to dip, reaching a depth of app. 3/16 of an inch at the
doorway of the bathroom and hallway.

The hardwood, once installed, will run lengthwise into the dip.

How do you go about leveling the dip? Is it something we should be
concerned about? Any advice will be greatly appreciated.