Merbau

Merbau Wood Flooring
Sample above is 9/16 " laminated plank. Top portion is finished with water-base urethane; bottom with oil-modified polyurethane.
Appearance

Color: Heartwood is yellowish to orange-brown when freshly cut, turning brown or dark red-brown upon exposure. 
Grain: Straight to interlocked or wavy; coarse texture. 
Variations Within Species and Grades: Moderate to high variation in color.

Properties

Hardness/Janka: 1925; 49% 
Dimensional Stability: Excellent (change coefficient .00158; 57% more stable than red oak). However, actual installations have demonstrated significant movement in use. 
Durability: Strength is comparable to hickory, but density is somewhat lower.

Workability

Sawing/Machining: Sawing is difficult; wood gums saw teeth and dulls cutting edges; carbide tooling recommended. 
Sanding: Sands satisfactorily.
Nailing: Good holding ability. 
Finishing: Wood stains black in contact with ferrous metals or moisture. 
Comments: High resistance to termites.