American red elm (Ulmus rubra)
Other names: Slippery elm, brown elm
Click to enlarge
Distribution
The Eastern to Mid-West USA.
General description
Red elm has a greyish white to light brown narrow sapwood, with
heartwood that is reddish brown to dark brown in colour. The grain
can be straight, but is often interlocked. The wood has a coarse
texture. (American grey elm is now only available in very limited
volume.)
Working properties
The wood of red elm is fairly easy to work, it nails, screws and
glues well, and can be sanded, stained and polished to a good finish.
It dries well with minimum degrade and little movement in performance.
|
|
|
|
Machining |
|
|
Nailing |
|
|
Screwing |
|
|
Gluing |
|
|
Finishing |
|
|
Physical properties
Elm is moderately heavy, hard and stiff with excellent bending
and shock resistance. It is difficult to split because of its interlocked
grain.
Specific Gravity: 0.53 (12% M.C.)
Average Weight: 593 kg/m3 (12% M.C.)
Average Volumetric Shrinkage: 11% (Green to 6% M.C.)
Modulus of Elasticity: 10,274 MPa
Hardness: 3825 N
Durability
Rated as non-resistant to heartwood decay, and classed as permeable
to preservatives.
Availability
USA: Limited in both lumber and veneer as supply is threatened
by Dutch elm disease, but more available in the south.
Export: Limited.
Main uses
Furniture, cabinet making, flooring, internal joinery, panelling
and coffins.
|