View full sizeDoju 5/4x6 S4S E4E Deck Board
Doju 5/4x6 deck board — S4S Eased Edge, kiln-dried. A dense, stable tropical hardwood and an affordable Ipe alternative. Priced by length.
5/4x6 S4S covers 5.5″ per lineal foot · 0.625 BF per lineal foot.
Tell us how much you need and we'll ship a fair spread of available lengths at the standard $6.73/LF— about 40% at 10′ & shorter, 60% at 12′ & longer, of which 20% is 16′+. Exact lengths aren't guaranteed.
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About Doju
Full Doju profile →Doju is a close cousin to Ipe — denser-hitting on the hardness scale at 3,680 lbf, and one of the most stable hardwoods used outdoors, which makes it a sound choice close to the ground and in climates that swing. It has been traded in Europe for decades under its own name rather than as a substitute for anything else. The practical difference from Ipe is supply. Doju carries no CITES Appendix II listing, and the resource sits concentrated in a smaller region under long-standing supply arrangements, so availability is steadier and the paperwork simpler. Left alone it ages to a silver-grey; oiled, it keeps the olive-brown and yellowish-grey contrast it starts with. Those stability figures — radial shrinkage of 3.6% and tangential of 5.1% — come from Nova’s own laboratory testing in August 2025 of the specific Doju sub-species they supply, which runs tighter than the generic published numbers for the species.
- Color
- Doju heartwood is light to dark olive brown, with contrasting yellowish-grey or grey-brown tones running through it. Left untreated it weathers to a lustrous silver-grey; oiled or stained it holds a rich golden-brown.
- Grain
- Straight to very irregular
- Texture
- Medium to coarse
- Durability
- Rated as very durable. Resistant to brown- and white-rot fungi, with exemplary weathering characteristics.
- Common uses
- Decking, siding, fencing, boardwalks and heavy exterior construction.
- Origin
- Found in marsh forests, ridge tops and riverbanks through the Lesser Antilles and continental tropical America, with supply concentrated in the northeast corner of South America.
- Botanical family
- Buchenavia
- Also known as
- Buchenavia spp, Bolivian Walnut
Strength & performance
Compare all decking species →Mechanical properties, benchmarked against Ipe — the tropical-hardwood gold standard.
Specifications
- Material
- Doju
- Brand
- Ghent Wood Products
- SKU
- DOJU-54X6-S4S
- Pattern
- S4S Eased Edge
- Nominal size
- 1-1/4 × 6
- Net size (actual)
- 1" × 5-1/2"
- Condition
- Kiln-dried (KD)
- Sold by
- LF
- Weight
- 2.27 lb
- Availability
- In stock
Reviews
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