From Native Plants PNW:
The tallest known Grand Firs are just over 260 feet (80m). Many of the biggest are on the Olympic Peninsula. It typically only grows to 135’ to 180’ (40-55m) and is relatively short-lived, living less than 300 years. Grand Fir grows quickly when growing in the open, more slowly in the shade.
 
It is shade tolerant but less so than Western Hemlock and Western Red Cedar. It grows from moist river valleys to dry rainshadow forests.
 
Firs are useful to many animals for cover and nesting sites. Grouse eat the needles. Deer and elk eat the foliage and twigs in the winter. Birds, chipmunks and squirrels eat the seeds.
 
Photo credit: Tournasol7 on Wikimedia Commons (CC BY-SA 4.0 Deed)