timberholdings_main_tigerwoodMuiricatiara aka Tigerwood (Astronium lecointei)

Tigerwood is sought after for its unique, exotic-looking color and grain pattern that give it a dark brown, richly mottled appearance that is similar to rosewood. It is one of the finest quality hardwoods available.

Muiricatiara, also sold commercially as Tigerwood, grows primarily in the northeastern Amazon basin. While a good, naturally durable species, consumers should be aware that not all the lumber produced from this species will contain the desirable striped characteristics.

Strength & Durability

Tigerwood is very resistant to preservative treatments, but is also highly regarded for its durability and natural resistance to decay and rot. It is a dense and heavy wood at 60lbs/cu.ft. yet it is still very bouyant.

How does Iron Woods® Tigerwood compare to other lumber and decking products?

Tigerwood CCA-Treated Pine Composite Decking
Type Hardwood Softwood Plastic Wood
Maintenance Low High Low
Decay Resistance High Varies Varies
Strength High Medium Low
Movement in Service Low/Medium High High
Fire Rating Class Medium Varies Low
Weight per cu. ft. 60lbs. 35lbs. 60 to 64lbs.
Bending Strength 16,600 9,900 to 14,500 1,423 to 4,500
E-modulus 2,230,000 1,170,000 to 1,510,000 175,000 to 480,000
Shear Strength 1,960 1,370 561 to 1,010
Hardness 2,160 690 940 to 1,390

See how it compares to the rest of our line

Suitable Applications

This species is moderately diffficult to work with, especially with hand tools, but its striking beauty make it worth it. Tigerwood is a great choice for residential decking, flooring and paneling and a great alternative to traditionally softer choices.


We supply Tigerwood in multiple dimensions. Its decking profiles are readily available, other sizes by special order.

Decking, Kiln Dried – up to 5/4x6
Lumber, Kiln Dried – 4/4, 5/4, 6/4, 8/4, and special order
Timber – special order

Residential Deck Installation & Maintenance

Tigerwood is a low-maintenance decking. It naturally weathers into light silvery gray tones – there’s no need to apply annual sealers. To enjoy its warm golden-brown hues, a simple application of an outdoor finish can be periodically be applied to maintain its beauty. Consult our installation guide, available at your dealer, for more outdoor finishes and hints on working with Tigerwood.

Storage & Handling

Iron Woods® Tigerwood decking is supplied as kiln dried lumber and is for outdoor use only. Store the wood out of direct sunlight and be sure to keep it dry and off the ground. Allow the wood to acclimate and stabilize to the installation area’s humidity before installing.

We recommend carbide-tipped saw blades and high-quality drills for smooth cuts.


These spans are are designed for Tigerwood to allow for minimal deflection of the deck surface. For maximum spans and engineering data, you can contact us.

Load Size
Board Size 100psf
1x4 16″
1x6 16″
5/4x6 24″

Allow a 1/8″ gap between 6″ wide deck boards and a 1/16″ gap between 4″ wide deck boards for drainage, airflow and expansion. Kiln dried decking may expand 1/8″ on 6″ wide boards during times of high moisture. Expect some shrinkage in width in hot or dry areas.

Deck Ventilation

Adequate ventilation of the deck is essential for long-term stability and to minimize cupping. Proper air ventilation allows air to flow in from outside the deck area, under the joists and up through the gaps between the deck boards.


For screws, we recommend a high-quality, stainless steel trim head screw. Though coated or galvanized screws may also be used, they generally cause black staining and have a shorter service life. To install Iron Woods® Tigerwood, you must pre-drill a pilot hole and countersink to avoid splitting and then fasten with the stainless steel screws, which are available at Iron Woods® dealers.


Seal Iron Woods® Tigerwood immediately after installation to reduce the potential for surface checking. If installing over a prolonged period or during hot weather sealing after each phase is recommended. Be sure to seal all ends immediately after cutting with Anchorseal clear wax end sealer (available from your Iron Woods®dealer) in order to reduce end checking.

To maintain its brown color, use a transparent, penetrating oil-based sealer with UV inhibitors in a trans-oxide pigmented tint and reapply annually or as needed.

If you prefer a natural, silvery-gray appearance, use a clear oil-based sealer for the first coat and then simply let the wood weather to its natural gray color. If you want to return silver-gray wood to the original color, use a “wood brightener.” Careful power washing and/or sanding can help to remove the grayed wood.

More Information

For further details on the installation of Iron Woods® Tigerwood, you can contact us at any time.