Oak wood is a good looking and solid hard wood. Asico oak wood fire door is made of American Red Oak wood and Asico WFC30 fire core. It passed American UL 10(c) and BS476 test. Fire rating range from 20minutes, 30minutes, 45minutes, 60minutes, 90minutes until 120minutes. Oak wood is a good looking and solid hard wood.
Here is Red Oak Data Sheet
Common Name(s): Red Oak
Scientific Name: Quercus rubra
Distribution: Northeastern United States and Southeastern Canada
Tree Size: 80-115 ft (25-35 m) tall, 3-6 ft (1-2 m) trunk diameter
Average Dried Weight: 44 lbs/ft3 (700 kg/m3)
Specific Gravity (Basic, 12% MC): .56, .70
Color/Appearance: Heartwood is a light to medium brown, commonly with a reddish cast. Nearly white to light brown sapwood is not always sharply demarcated from the heartwood. Quartersawn sections display prominent ray fleck patterns. Conversely, white oak tends to be slightly more olive-colored, but is by no means a reliable method of determining the type of oak.