Common Name(s): Black sheoak, river black oak
Scientific Name: Allocasuarina littoralis
Distribution: Australia
Average Dried Weight: 48.1 lbs/ft3 (770 kg/m3)
Janka Hardness: 1,490 lbf (6,650 N)*
*Estimated hardness based on specific gravity
Comments: Usually a small to medium sized tree with a moderately fast growth rate, black sheoak represents a species with only moderate-to-high density wood in a genus that’s otherwise known for hard, high density wood.
Not closely related to true oaks (Quercus genus), the etymology of the common name sheoak is ambiguous. Both oaks and sheoaks share a similar ray-flecked appearance on quartersawn surfaces.
Note: This is a truncated profile page. If you have any helpful info or experience with this wood species, feel free to leave a comment below and I’ll do my best to integrate any relevant data when I expand the page. ~Eric
Images: Drag the slider up/down to toggle between raw and finished wood.
Identification: See the article on Hardwood Anatomy for definitions of endgrain features.
Related Content:
Wood Info & Stats
Mechanical Properties
You can help support the site by buying one of these resources, designed and published by The Wood Database
The specific links on this site are affiliate links (as an Amazon Associate I earn from qualifying purchases) and help support the site at no extra cost to you.
Donating wood samples and pictures of wood items
If you’ve got a new or unusual wood species that isn’t on the site, please consider sharing it with the rest of us! I’m also interested in getting photos of completed wood projects—especially of obscure or lesser known woods. See my page on donating wood samples for more info.
Support me directly through Patreon
If you’ve been helped by the Wood Database, consider saying “thanks” and helping to support the project. There is of course no obligation, but if you’d like to give back and ensure that the project continues to grow, consider supporting me on Patreon.
Any and all sheoaks I have worked with are absolutely beautiful, it can be a bit tough to work with, but it planes well enough if you do so in the right direction, always looks beautiful once finished (I always finish my pieces with a natural oil). Keep in mind that some people may call it very tough to work with, but as an Australian, most of our native hardwoods are considered very hard to work with, a lot of them being eucalypts, or what we colloquially call “gum trees,” hence the names; spotted gum, blue gum, red gum, etc.… Read more »