Fir Tree: Wood of, Used for Building
Source: Nav
1 Kings 6:15, 34
He lined the interior walls with cedar paneling from the floor of the temple to the ceiling, and he covered the floor with cypress boards. / The two doors were made of cypress wood, and each had two folding panels.
Songs 1:17
The beams of our house are cedars; our rafters are fragrant firs.