Red Balu/Batu

Red Balau/Batu is a mahogany product most recommended for decking and exterior uses. Offering superior qualities, such as natural resistance to rot and decay, this product stands the test of harsh weather conditions for an affordable price (ask about the 25-year warranty!)

Excelsior’s Red Balau/Batu products are sourced responsibility through reputable suppliers, originating from South Asia and the Philipines. With a beautifully consistent red glow, Red Balau is the most durable pick out of it’s mahogany relatives. Surpassing competing species, such as Redwood and Red Meranti, you will not be disappointed in the density and reliability of Red Balau/Batu.

For more on this product:

Red Balau/Batu Brochure
Installation Guidelines

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  • Specie: Red Balau/Batu
  • Janka Rating: 1600
  • Thickness: 4/4, 5/4, contact for larger thicknesses
  • Widths: 4” and 6” widths available
  • Lengths: random lengths 8’-20’, uniform and minimum lengths requirements available
  • Grade: clear product, sound material for decking uses
  • Kiln Dried: Kiln Dried for exterior use
  • Solid Wood or Engineered: Solid
  • Lumber Source: Sourced from New York State, origin South Asia, and the Philipines
  • Coating Options: Available un-coated or pre-coated; custom colors available
  • Character: Dark reddish-brown
  • Texture: can be interlocked, naturally rough in texture


> So What is Janka Rating?

The Janka Hardness Test measures how many pounds of force it takes to embed a .444” steel ball halfway into a piece of wood. This is helpful in determining if a wood specie is suitable for flooring. Harder wood species have higher numbers. Red Oak is our industry-standard for comparing different species. It has a Janka rating of 1290. Most hardwoods and many types of softwood are suitable for use as flooring, especially with proper install, coatings, and maintenance. Please note that all wood will dent with a forceful enough impact.

An example from

"Humans will only have one foot on the ground while walking. Estimate that the area of the heel on a man's shoe is 10in². When he walks, a 200 lb. man exerts 20 psi because the weight is supported momentarily by the heel. A 100 lb. woman exerts many more psi when she wears heels. Depending on the area of the heel, she can exert as much as 1600 psi under a 'stiletto heel' ¼ inch on a side. This explains why people with wood floors don't want women walking on them in high heels.”

> Why do we insist on Kiln Drying?
  • Wood is sterilized and insects are killed during this process. While some reclaimed wood is quite dry we must take this step to ensure that insects will not be moving into your home.
  • Kiln dried wood absorbs coatings better. In fact, coatings will last longer.
  • Kiln drying wood decreases shrinkage and movement in service. Non-kiln dried wood may shrink and de-form as it loses moisture from its environment.

Decreased weight makes for easier handling and installations.

Note: There is no way to prevent wood from absorbing water and releasing water into its environment. Trees are designed to drink water and this property can’t be completely diminished. Kiln drying is an important step in reducing (not eliminating) movement in your floors.

> Order Process

Upon inquiry, we will provide a written quote for approval and acceptance. Please review the quote carefully and verify that all quantities, species, sizes are what you ordered. The written quote must be signed and the required deposit must be received by Excelsior to initiate the order.


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