1x6 Tigerwood Tongue & Groove Siding board profile diagram
Siding

1x6 Tigerwood Tongue & Groove Siding

This 1x6 Tigerwood siding board (Tongue & Groove profile) offers unmatched exterior cladding longevity, backed by Tigerwood's 2,160 Janka hardness and a natural lifespan of up to 40+ years. The interlocking tongue and groove profile creates tight, seamless joints for exterior cladding and accent walls, with no visible fasteners on the finished surface. In stock and ships nationwide — order 1x6 Tigerwood siding boards online or call 1-844-674-4455 for expert guidance.

1 x 6(0.75"×5.5" actual)[19.0mm × 139.7mm]
Contractor Trusted
Expert Backed
Ships Nationwide
SKU: TIGE-1X6-TG-SB-L1

Configure Your Order

Select profile, grade, and length below to see live pricing

Durable and Aesthetic Siding Solution

T&G

Select and Better is our standard grade

Length Guide

Available lengths: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22′

Estimated Shipping Weight
Weight per linear foot:2.01 lbs/LF
1' board:2.0 lbs

1x6 Tigerwood T&G Siding — Complete Guide

Everything you need to know about t&g tigerwood siding

About 1x6 Tigerwood Tongue & Groove Siding

Tigerwood (Goncalo Alves) is an exceptional choice for exterior siding and cladding applications due to its high dimensional stability and impressive weather resistance. The tongue-groove profile of this lumber not only facilitates seamless installation but also enhances the aesthetic appeal by creating clean lines and interesting shadow patterns. This profile allows for a tighter fit, reducing the chances of water infiltration while providing a sophisticated wood appearance.

  • High dimensional stability in various climates
  • Weather-resistant properties for longevity
  • Tongue-groove profile enhances aesthetics and ease of installation
  • Slim design minimizes shadow lines for a sleek finish

Key Benefits

Durability

Tigerwood's high Janka hardness rating makes it one of the most durable wood species available, providing long-lasting performance even in harsh weather conditions.

Natural Resistance

Naturally resistant to rot and insect damage, making it an ideal choice for outdoor applications.

Aesthetic Appeal

Its rich, striking color variations and unique grain patterns offer a beautiful, natural look for any architectural style.

Technical Specifications

Janka Hardness

2160

Density

58 lbs/ft³

Durability Rating

Class 1 (very durable)

Dimensional Stability

Exceptionally stable, resists warping and splitting

Installation Guide

Difficulty:
Moderate

Key Tips:

  • Ensure proper ventilation behind the cladding to reduce moisture buildup.
  • Accommodate for wood expansion by leaving appropriate gaps based on environmental conditions.
  • Use corrosion-resistant fasteners that complement the aesthetic of the tigerwood.

Recommended Tools:

Power drill
Circular saw
Measuring tape
Level

Maintenance & Care

Cleaning

Regularly clean the surface with mild soap and water to remove dirt and debris. Avoid harsh chemicals to maintain the wood's natural finish.

Finishing

Reapply a UV-protective finish every 1-2 years to maintain color and protect against weathering.

Weathering

Over time, the vibrant color of tigerwood may fade to a silver-gray patina if left untreated, which is normal for exterior wood.

1x6 Tigerwood Tongue & Groove Siding — Frequently Asked Questions

A 1x6 Tigerwood board weighs approximately 2.01 lbs per linear foot. Tigerwood has a density of about 58 lbs/ft³, making it one of the densest commercially available hardwoods. A 12-foot 1x6 Tigerwood board weighs approximately 20 lbs. Always factor weight into your structural and shipping calculations.

1x6 Tigerwood siding has an expected service life of up to 40+ years when properly installed. This is 3-5× longer than pressure-treated pine and 2-3× longer than cedar. Tigerwood achieves this exceptional longevity through its 2,160 Janka hardness and Class 1 durability rating, providing built-in resistance to rot, decay, insects, and fungal growth without chemical preservatives.

1x6 Tigerwood siding pricing varies by profile, grade, and board length. Select and Better grade boards typically range from $4-$12 per linear foot before shipping. While the upfront cost is higher than pressure-treated lumber, Tigerwood's up to 40+-year service life makes the lifetime cost per year significantly lower. Use the configurator above for exact pricing, or request a custom quote for large orders.

Yes — 1x6 Tigerwood wood siding outperforms composite in hardness (2,160 vs ~200 Janka), lifespan (up to 40+ years vs 25-30 years), and heat resistance. Unlike composites, Tigerwood won't melt, warp in extreme heat, or fade significantly. While initial cost is similar ($8-15/LF installed), Tigerwood wood decking costs less over its much longer lifetime. Composites do offer lower upfront maintenance, but Tigerwood's natural beauty and durability make it the superior long-term investment.

Tigerwood is widely considered one of the best woods for 1x6 siding boards. With a 2,160 Janka hardness rating, Class A fire-rated certification, and up to 40+-year lifespan, Tigerwood (Goncalo Alves) outperforms nearly every other commercially available wood species. Other excellent options include Cumaru (Brazilian Teak) and Massaranduba (Brazilian Redwood), but Tigerwood remains the industry benchmark for premium outdoor hardwood applications.

Tigerwood requires minimal maintenance. Without treatment, it naturally weathers to an elegant silver-gray patina over 6-12 months. To maintain the original warm brown color, apply a UV-inhibiting penetrating oil (like Ipe Oil or Penofin) once or twice annually. Cleaning involves periodic washing with a mild soap solution. No sanding, staining, or sealing is required for structural durability.

Tigerwood is DIY-friendly with proper preparation. Key requirements: (1) Always pre-drill all screw holes — Tigerwood is too hard for direct screwing. (2) Use only 305 or 316 stainless steel fasteners — standard hardware will corrode and stain. (3) Face-screw with stainless steel trim-head screws. (4) Allow boards to acclimate on-site for 5-7 days before installation. A compound miter saw with a carbide-tipped blade is recommended.

A nominal 1x6 Tigerwood board has actual finished dimensions of 0.75" × 5.5" (19.0 x 139.7 mm). The "1x6" is the nominal (rough-cut) size — after kiln drying and precision surfacing, all hardwood lumber finishes slightly smaller. This is standard across the lumber industry, similar to how a nominal 2×4 softwood measures 1.5" × 3.5". Always use the actual dimensions (0.75" × 5.5") when calculating material quantities and coverage for your project.

We responsibly, legally, and ethically source all our Tigerwood. We work only with suppliers who follow responsible forestry practices with full chain-of-custody transparency. Note: We are not FSC certified. Tigerwood trees grow naturally in diverse tropical forests and regenerate well under managed harvest. The extremely long lifespan (up to 40+ years) means fewer replacements compared to softwood or composite alternatives, reducing long-term environmental impact.

Shipping & Delivery

Nationwide delivery: We ship to all 50 states via LTL freight, flatbed, or terminal pickup

Typical lead time: 5-10 business days for standard orders (custom milling may add 2-3 weeks)

Shipping estimate: Final freight cost calculated at checkout based on your location and order size

Rush service available: Contact us for expedited milling and shipping options

1x6 Tigerwood Tongue & Groove Siding — Complete Buyer's Guide

Tigerwood, also known as Goncalo Alves, is a premium tropical hardwood sourced from Tropical Central and South America (Brazil, Colombia, Venezuela). With a Janka hardness rating of 2,160 lbf and a density of 58 lbs/ft³, Tigerwood is classified as Class 2 - Durable — one of the most durable commercial lumber species available. The heartwood exhibits golden to reddish-brown with dramatic dark brown to black stripes with interlocked to wavy grain, medium texture, creating a striking natural appearance that improves with age.

Why Choose 1x6 Tigerwood Wood for Your Siding?

As exterior cladding, Tigerwood siding provides a weather-tight barrier with exceptional impact resistance. The dense grain resists dents, hail damage, and woodpecker damage far better than cedar, pine, or fiber cement alternatives. Properly installed 1x6 Tigerwood siding delivers a service life of 40+ years with minimal maintenance — an optional annual oil treatment preserves the original color, or you can let the Tigerwood wood weather to a distinguished silver-gray patina. Tigerwood carries a Class A - Low flame spread, making it suitable for wildfire-prone regions where code-compliant materials are required.

The 1x6 tongue & groove (T&G) profile features interlocking edges that create a seamless, flush surface with no visible gaps. Ideal for porch ceilings, soffit installations, and covered porch floors. All Tigerwood lumber is available in Select and Better grade with lengths ranging from 4′ to 20′. For detailed step-by-step instructions, consult our Tigerwood installation guide. Long-term care recommendations are covered in our Tigerwood maintenance guide.

1x6 Tigerwood Siding — Installation & Coverage Specs

  • Recommended joist spacing: 16" on center for 1x6 boards (0.75" actual thickness)
  • Fastener placement: Secure per profile requirements, one fastener per joist minimum
  • Board weight: A 12-foot 1x6 Tigerwood board weighs approximately 20 lbs (1.66 lbs/LF)
  • Coverage: Each 12-foot 1x6 board covers 5.5 sq ft of siding surface (5.5" face width)
  • Pre-drilling required: Always pre-drill in Tigerwood — the 2,160 lbf hardness prevents direct screwing

Janka Hardness

2,160 lbf

Service Life

40+ years

Durability

Durable

Fire Rating

Class A

1x6 Tigerwood Siding — Frequently Asked Questions

1x6 Tigerwood siding has an expected service life of 40+ years when properly installed and maintained. This is 3-5x longer than pressure-treated pine and 2-3x longer than cedar. Tigerwood achieves this exceptional longevity through its natural density (Janka hardness: 2,160 lbf) and Class 1 durability rating, which provide built-in resistance to rot, decay, insects, and fungal growth — all without chemical preservatives.

1x6 tongue & groove Tigerwood boards interlock via a milled tongue on one edge and a corresponding groove on the other. Secure each board by blind-nailing through the tongue at a 45° angle using stainless steel ring-shank nails or by face-screwing with countersunk stainless steel screws. Always pre-drill holes in Tigerwood to prevent splitting. T&G Tigerwood should only be used in covered or semi-protected areas.

1x6 Tigerwood siding pricing varies by profile, grade, and board length. 1x6 Tongue & Groove boards in Select and Better grade typically range from $4-$12 per linear foot before shipping. While the upfront cost is higher than pressure-treated lumber, Tigerwood's 40+ years service life makes the lifetime cost per year significantly lower. Use our online configurator above to see exact pricing for your selected options, or request a custom quote for large orders.

Related Tigerwood Products & Resources

Explore more Tigerwood siding options and expert guides