Cordwood BTU Chart

The heat value measurement used in the chart below is the British Thermal Unit, or BTU, defined as the amount of thermal energy it takes to raise one pound of water one degree Fahrenheit. One MBTU = one million BTU’s.

Common Name Species Name Pounds/Cord MBTU/Cord
Osage Orange (Hedge) Maclura pomifera 4845 30.0
Hop Hornbeam (Ironwood) Ostrya virginiana 4250 26.4
American Persimmon Diospyros virginiana 4165 25.8
Shagbark Hickory Carya ovata 4080 25.3
Pacific Dogwood Cornus nuttallii 3995 24.8
American Holly Ilex Opaca 3995 24.8
Black Birch Betula lenta 3910 24.2
White Oak Quercus alba 3910 24.2
Pacific Madrone (Arbutus) Arbutus menziesii 3825 23.7
Post Oak Quercus stellata 3825 23.7
Honey Locust Gleditsia triacanthos 3825 23.7
Butternut Hickory Carya cordiformis 3825 23.7
Blue Beech (Ironwood) Carpinus caroliniana 3825 23.7
Mulberry Morus rubra 3740 23.2
Black Locust Robinia pseudoacacia 3740 23.2
Sugar Maple Acer saccharum 3740 23.2
American Beech Fagus grandifolia 3655 22.7
Oregon Oak (Garry) Quercus garryana 3655 22.7
Burr Oak (Mossycup) Quercus macrocarpa 3655 22.7
Red Oak Quercus rubra 3570 22.1
Yellow Birch Betula alleghaniensis 3570 22.1
White Ash Fraxinus americana 3485 21.6
Oregon Myrtle (Pepperwood) Umbellularia californica 3485 21.6
Apple Malus domestica 3485 21.6
Green Ash Fraxinus pennsylvanica 3400 21.1
Black Maple Acer nigrum 3400 21.1
Black Walnut Juglans nigra 3230 20.0
Red Maple Acer rubrum 3230 20.0
Oregon Ash Fraxinus latifolia 3230 20.0
White Birch (Paper) Betula papyrifera 3230 20.0
Tamarack (Larch) Larix laricina 3145 19.5
Gray Birch Betula populifolia 3145 19.5
Hackberry Celtis occidentalis 3145 19.5
Rocky Mountain Juniper Juniperus scopulorum 3145 19.5
Black Cherry Prunus serotina 3145 19.5
Kentucky Coffeetree Gymnocladus dioicus 3060 19.0
Sorrel (Sourwood) Oxydendrum arboreum 3060 19.0
Red Elm Ulmus rubra 3060 19.0
Eucalyptus (Red Gum) Eucalyptus camaldulensis 2975 18.4
American Elm Ulmus americana 2975 18.4
American Sycamore Platanus occidentalis 2890 17.9
Big Leaf Maple Acer macrophyllum 2890 17.9
White Elm (Russian) Ulmus laevis 2890 17.9
Black Ash Fraxinus nigra 2890 17.9
Boxelder (Maple Ash) Acer negundo 2890 17.9
Norway Pine (Red) Pinus resinosa 2890 17.9
Douglas Fir Pseudotsuga menzies II 2805 17.4
Silver Maple Acer saccharinum 2805 17.4
† Compressed Sawdust Logs Presto homofecit stipes 2000 16.5
Pitch Pine Pinus rigida 2635 17.0
Lodgepole Pine Pinus contora latifolia 2465 15.3
Hemlock Pinaceae tsuga 2465 15.3
Black Spruce Picea mariana 2465 15.3
Catalpa (Catawba) Catalpa speciosa 2380 14.8
Ponderosa Pine Pinus ponderosa 2380 14.8
Red or White Alder Alnus rubra or rhombifolia 2380 14.8
Canadian Jack Pine Pinus banksiana 2380 14.8
Sitka Spruce Picea sitchensis 2380 14.8
Idaho White Pine Pinus monticola 2236 14.3
Willow Salix 2295 14.2
White Concolor Fir Abies concolor 2295 14.2
Basswood (Linden) Tilia americana 2210 13.7
American Aspen (Poplar) Populus tremuloides 2210 13.7
Butternut (White Walnut) Juglans cinerea 2125 13.2
Eastern White Pine Pinus strobus 2125 13.2
Balsam Fir Abies balsamea 2125 13.2
Cottonwood (Poplar) Populus trichocarpa 2040 12.6
Engelman Spruce Picea engelmannii 1955 12.1
Eastern Cedar (Red Cedar) Juniperus virginiana 1955 12.1
Ohio Buckeye Aesculus glabra 1955 12.1
White Cedar Thuja occidentalis 1870 11.6
Bamboo Poaceae bambusoideae 1615 10.0
Balsa Ochroma pyramidale 935 5.8

Source: The Chimney Sweep, Bellingham, WA

† Compressed sawdust logs are sold by weight, not by volume; BTU content is provided for one ton (2000 pounds).

Calculations were based on seasoned wood at 20% moisture content, and 85 cu ft of wood per cord. A cord of wood is defined as a stack 4 feet high, 4 feet deep and 8 feet long, which comes to 128 cubic feet. Allowances were made in the calculations for air space within the stack.