With hardwood decking, the natural stresses within the wood often prevent some boards from staying straight. Usually, installing an exotic hardwood requires two or more people, where one installer is using a pull bar to force crooked boards straight, as well as cutting boards for grade and waste issues.
This is not an issue with dassoXTR, as all boards come straight – right out of the bundle, and all parts of the board are useable – so there’s minimal waste. All dassoXTR boards also come in standard six-foot (6”) lengths. While some installers prefer longer board lengths, most find that the 6” lengths make for easier handling and installation. In addition, all dassoXTR boards are side grooved for hidden fastening, but can also be face screwed and plugged.
When installing hardwood decking, boards must end on top of a joist. But dassoXTR’s unique tongue-and-groove end-match system offers another installation option. For some installations (16” O.C. joists or less), rather than joining boards atop a joist only, ends can also be joined in the space between the joists. This not only saves time and money on installation, but it also produces a stronger deck with a more random, flawless pattern and consistent coloration.
Regardless of whether you choose Ipe or dassoXTR, be prepared to go through more than the normal amount of saw blades and drill bits during installation, as both materials are extremely hard. Keep in mind that Ipe sawdust is an irritant and may cause skin problems such as dermatitis in some workers. And Ipe, unlike dassoXTR, can cause infections from splinters.
As mentioned, both dassoXTR and Ipe (as well as all other exotic hardwoods) will change color when exposed to the elements. This color change, known as greying or silvering, can be prevented by applying a finish to the decking – either a penetrating finish or a protective surface film. Companies that make these finishes often also make “brighteners” to remove greying/silvering before finishing.
Both exotic woods and dassoXTR are susceptible to “checking.” This term describes the small splits and cracks that can occur when decking begins to dry out from extreme weather changes and humidity swings. But unlike most exotic woods, dassoXTR is pre-primed at the factory with a penetrating oil, which minimizes potential checking issues and splintering.
To learn more about dassoXTR finishes and maintenance, see “Maintenance of dassoXTR”.
In comparing dassoXTR to exotic woods like Ipe – the most popular exotic hardwood used in decking – a fairly apple-to-apples comparison can be made using three standard measures of product performance (independent of the structure on which the deck is being installed). These include:
- Modulus of Elasticity (MOE), which measures the material’s resistance to being deformed elastically (i.e., non-permanently) when a force is applied to it.
- Janka hardness scale, an industry standard that rates the relative hardness of wood, measuring its resistance to denting and wear.
- Decay and insect resistance testing.
Here’s how dassoXTR compares to Ipe.
|Modulus of Elasticity (MOE)
||2,037ksi (3/4" thick)
||3,010ksi (1" thick)
|Janka hardness (lbs)
|Resistance to Decay and Insects
||"Good" to "Excellent" resistance
Its high MOE score tells that dassoXTR is very hard to bend and break. The high Janka rating means it’s hard to dent. And its inherent decay and insect resistance make it suitable for outside use.
To learn more about the dassoXTR difference, see How dassoXTR Bamboo Compares to Other Bamboo Decking.
Order a FREE XTR Sampler Box!
Each Sampler Box Includes:
- One sample piece of dassoXTR
Fused Bamboo® Decking
- One sample piece of dassoXTR
Fused Bamboo® RainClad Siding
- dassoXTR Fused Bamboo® Brochure
- dassoXTR Fastening System
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