Firewood BTU Ratings (in millions)
Wood Variety Rating Heat Yield Burn Difficulty Split Difficulty BTUs per cord (Millions)
Ash Excellent High Easy Hard 25.9
Red Oak Excellent High Easy Hard 21.7
White Oak Excellent High Easy Hard 26.5
Beech Excellent High Easy Hard 21.8
Birch Excellent High Easy Hard 21.3
Hickory Excellent High Easy Hard 30.0
Hard Maple Excellent High Easy Hard 29.7
Pecan Excellent High Easy Hard
Dogwood Excellent High Easy Hard 24.3
Soft Maple Good Medium Easy Hard 19.1
Cherry Good Medium Easy Hard 18.5
Walnut Good Medium Easy Hard 20.3
Elm Fair Medium Medium Easy 23.8
Sycamore Fair Medium Medium Easy 18.5
Gum Fair Medium Medium Easy 18.1
Mesquite Good High Medium Easy
Aspen Fair Low Easy Hard 14.5
Basswood Fair Low Easy Hard 12.6
Cottonwood Fair Low Easy Hard 12.2
Chestnut Poor Low Easy Hard
Yellow Poplar Poor Low Easy Hard 16.0
Southern Yellow Pine Good High Easy Hard
Douglas Fir Good High Easy Hard 21.4
Cypress Fair Medium Medium Hard
Redwood Fair Medium Medium Hard
White Cedar Good Medium Easy Hard 17.5
Western Red Cedar Good Medium Easy Hard 17.5
Eastern Red Cedar Good Medium Easy Hard 17.5
Juniper Good Medium Easy Hard
Pinon Good Medium Easy Hard
Eastern White Pine Fair Low Medium Hard 15.8
Western White Pine Fair Low Medium Hard 15.8
Sugar Pine Fair Low Medium Hard 15.8
Ponderosa Pine Fair Low Medium Hard 17.0
True Firs Fair Low Medium Hard 19.5
Tamarack Fair Medium Easy Hard 20.8
Larch Fair Medium Easy Hard 20.8
Spruce Poor Low Easy Hard 15.9
Alder Fair Medium Fair Hard 17.6
Apple Fair Medium Hard Easy 17.6
Ironwood Excellent Very High Hard Easy 24.7
Black Locust Excellent Very High Hard Easy 26.5
Madrone Excellent High Hard Easy 30.0
Willow Fair Low Hard Hard 14.5

Data is from: U.S. Forest Products Laboratory.

You will get the best results burning wood with the highest BTU (available heat) content.

Firewood Measurements

1 full cord measures 8 feet long x 4 feet high and 4 feet wide or 128 cubic feet.

A face cord measures 8 feet long x 4 feet high, with the average log length being 16″-18″, making it approximately 48 cubic feet.

Looking for a log rack to properly dry and season your firewood? There is an abundance of sizes, styles, and prices of indoor and outdoor firewood racks available.

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