Working with tigerwood is not like working with cedar or pressure-treated pine. Its density of 59 to 65 pounds per cubic foot and Janka hardness of 2,160 lbf place it firmly in the category of tropical hardwoods that require specific tooling, slower feed rates, and more methodical fastening technique than most builders are accustomed to from domestic softwood work. Approaching it with the wrong setup guarantees burned blades, split boards, and stripped screws.
Approached correctly, tigerwood is workable. It cuts cleanly, holds fasteners well once pre-drilled, and finishes beautifully. The preparation required is not exotic — it is a specific set of practices that apply to dense tropical hardwoods as a category.
Saw Blades and Cutting
Standard steel saw blades will not work effectively on tigerwood. Carbide-tipped blades are mandatory. For circular saws and miter saws, choose a carbide blade with fewer teeth (40 to 60 teeth for crosscuts on a 10-inch blade) rather than a fine-finish blade with 80 or more teeth. Counter-intuitively, a lower tooth count on dense hardwoods produces less heat per cut because each tooth takes a larger chip rather than rubbing and generating friction. High-tooth-count blades overheat on tropical hardwoods and dull far faster.
Feed rate matters. Pushing tigerwood through a saw too quickly causes burning and blade deflection. Too slowly and the blade dwells in one spot, generating heat that kills carbide tips. A moderate, consistent feed rate — slower than you would use on pine, faster than it feels safe — is the target. Let the blade do the work rather than forcing the cut.
Table saw ripping of tigerwood boards is practical with a good carbide ripping blade, though the wood's density means the saw motor works harder than with domestic lumber. A router table with a carbide spiral bit handles edge profiling and groove cutting well. Jigsaw work is possible but slow; use a fresh, fine-tooth metal-cutting blade and expect to replace it after every two or three cuts.
Drilling and Fastening
Pre-drilling is not optional with tigerwood. Attempting to drive any fastener — screw, nail, or bolt — into tigerwood without a pilot hole will split the board, strip the fastener head, or both. The wood does not compress and accommodate fasteners the way softwoods do; it resists until something gives way.
Use a sharp carbide or brad-point drill bit for pilot holes. For deck screws, drill a pilot hole 90 percent of the screw shank diameter to full screw depth, plus a countersink if you are recessing the head. In the end grain — the most challenging orientation — drill slowly and clear chips frequently to prevent binding. A stepped countersink bit that combines pilot and countersink in one pass speeds up the process considerably.
Stainless steel fasteners are the correct choice for tigerwood outdoor applications. The tannins and oils in tigerwood react with standard zinc-coated or galvanized fasteners, causing dark staining around the fastener site and accelerating corrosion of the fastener itself. 304 stainless steel screws are the minimum; 316 stainless is better for coastal environments. For structural connections, use hot-dipped galvanized or stainless carriage bolts with pilot holes drilled to match bolt diameter precisely.
Hidden deck fastener systems — biscuit-style or clip systems designed for tropical hardwoods — work well with tigerwood and eliminate surface fasteners entirely for a cleaner deck appearance. These require a slot routed into the board edge, which is practical with the right setup but adds a step to installation.
Sanding and Surface Preparation
Tigerwood's natural oils inhibit adhesion of water-based finishes and some oil-based products. Before applying any finish or oil, wipe the surface with a clean cloth dampened with mineral spirits or acetone to remove surface oil. This preparation step improves finish adhesion significantly and is recommended by most tropical hardwood finishing product manufacturers.
For sanding, start at 80 grit to remove any mill marks or surface irregularities, then progress through 100 and 120 grit for a finished surface ready for oiling. Tigerwood's density means sanding loads abrasive paper faster than softwoods; use a random-orbit sander and replace paper when it starts dragging rather than cutting. Over-sanding burnishes the surface and actually reduces oil absorption.
The interlocked grain in tigerwood can cause tearout when hand-planing or sanding against the grain. Always work with the grain direction, and reduce cutting angle on hand planes if tearout occurs. A card scraper produces excellent results on tigerwood surfaces that need smoothing without the tearout risk of a plane or belt sander.
Safety Considerations
Tigerwood dust is a sensitizer. Some individuals develop respiratory irritation or skin reactions from sustained tigerwood dust exposure. Use a quality dust mask (N95 minimum) when cutting or sanding, work in ventilated areas, and wash hands and forearms after handling freshly cut material. These precautions apply to tropical hardwood dust generally — the risk is not unique to tigerwood, but it is worth taking seriously for anyone spending extended time working with the material.
The wood's density also means boards are heavy. A 16-foot piece of 2x6 tigerwood decking weighs approximately 20 to 25 pounds. Plan for two people to handle long boards during installation, and use appropriate lifting technique to avoid strain on cuts where a single person is moving material frequently.
For context on how tigerwood fits into a broader outdoor project plan, the shop section includes structural and raised bed components designed around hardwood specifications. Planning lumber quantities before cutting begins — using the project calculators — reduces waste and the number of cuts required on this expensive material.
Frequently Asked Questions
What type of screws should I use for tigerwood decking?
Use 304 or 316 stainless steel deck screws, 2.5 to 3 inches long for 5/4 decking boards. Always pre-drill a pilot hole sized to 90 percent of the screw shank diameter. Composite decking screws and standard galvanized screws react with tigerwood's tannins and will cause staining and premature corrosion.
Can I nail tigerwood instead of screwing it?
Nailing tigerwood is not recommended. Even with pilot holes, nails do not hold as securely in dense tropical hardwood as screws, and the risk of splitting during driving is higher. Ring-shank stainless nails driven with a pneumatic framing nailer can work for some applications, but stainless steel screws remain the preferred fastening method for decking and structural work.
How quickly do saw blades dull on tigerwood?
Tigerwood dulls carbide blades noticeably faster than domestic softwoods and faster than domestic hardwoods like oak. A quality carbide blade that would last through several complete deck projects in pressure-treated pine may need inspection or replacement after a single tigerwood deck installation. Budget for blade replacement when pricing tigerwood projects, and keep a spare carbide blade on hand.