Modified Hardwood, Siding, Decking, and Flooring
What is Lignia?
Lignia is a modified wood that starts with FSC Radiata Pine and is then impregnated with a resin to dramatically increase the hardness and stability, while also making it a highly color fast lumber. In short it is a modified hardwood that is actually a softwood. The hardness is on par with Hard Maple or Oak, but the stability exceeds naturally occurring hardwoods. Lignia is highly rot resistant as well, making it well suited for a wide variety of applications from decking and exterior siding to interior flooring. It carries a class A fire rating and exceeds all Formaldehyde emissions standards. The extreme stability makes it a prime candidate for indoor and outdoor applications, and even better, it comes from a sustainable FSC plantation source. If LEEDs certification is your goal, then Lignia is a great product for the wood applications throughout your project.
Lignia Available Sizes
Lignia is, first and foremost, lumber. While we mill it into any number of specific applications, it is still a rough sawn lumber like any hardwood we sell. Lignia is manufactured in Wales and comes in metric sizes. The Imperial sizes are listed below but note that the actual material will be slightly fatter/wider/longer than these sizes. These are rough sawn sizes, and, if ordering a milled or S4S product, we will mill to your specified sizes.
- Thickness: 3/4, 4/4, 5/4, 6/4, 8/4, 10/4, 12/4 (22, 25, 32, 38, 50, 63, 75 mm)
- Width: 2 3/4, 3 3/4, 4 3/4, 5 3/4, 7 3/4 (75, 100, 125, 150, 200 mm)
- Length: 6′ – 19′ (2.1 – 6 meters)
Lignia also is available as quartersawn grain available in 4/4 thickness from 4-6″ width and 6-15 foot lengths.
As stated above, Lignia is tough like a hardwood but extremely stable. More importantly, unlike other woods, it is nearly isometric. Meaning it does move, but this movement takes place nearly equally in both the tangential and radial planes. The unequal movement of natural woods is forever the frustration with builders and architects and woodworkers everywhere. Lignia solves that problem by engineering a wood that still moves like regular woods, but the amount it moves is almost negligible in comparison. Take a look at the chart below and notice the marked difference between Lignia and the original Radiata Pine.
|Bending Strength (MOR)||12,152||11,820||psi|
The rot resistance, stability, and color fast nature is something you find with a lot of engineered hardwoods, but Lignia raises the bar with a much harder and more durable product. While other modified woods use chemical modification to change the structure, Lignia relies on physical modification and uses a resin to essentially harden and freeze the cell walls making a wood that is harder overall than any other engineered or modified hardwood/softwood on the market. Additionally it is quite beautiful with a color hue similar to Teak. Because of all of this, the applications for Lignia are widespread both indoors and outdoors. Modified hardwood flooring is a prime example where the stability and hardness make Lignia a perfect solution. That same stability with a class A fire rating and rot resistance makes Ligna a great idea for exterior siding or modified decking and structures. Perfect to complete that indoor to outdoor seamless transition. Finally the stability of Lignia means that in joinery situations like windows, doors, and furniture you can work with precision without fear of large wood movement during seasonal transitions.
Lignia Is Sustainable and TSCA Compliant
The source material for Lignia is Radiata Pine (Pinus radiata) also sometimes known as Monterey Pine. It grows in FSC plantations in New Zealand and Chile as well as naturally occurring along the coast of Califnornia and Mexico. It is a species with a long history in the North American market and proven for clarity of grade and sustainability. As such it qualified for LEEDs green building points but is also carries flame spread and fire retardant ratings. The resin infusion process uses a PF resin and the measured Formaldehyde ratings after curing are below that of naturally occurring wood products. Everything emits formaldehyde, even you and I, almost everything that is except Lignia. The tested emissions from Lignia are lower than these natural levels as the resin infusion polyermerizes and locks it in place when cured. In short, the lumber is sustainably sourced and environmentally friendly while long lasting.
For questions or to get a quote on Lignia, please give us a call and ask for our Lignia specialist, Victor Mosca, 410-335-9600