1x6 Red Balau Siding board profile diagram
Siding

1x6 Red Balau Siding

Eased-Edge (E4E) — Standard Profile

This 1x6 Red Balau siding board offers unmatched exterior cladding longevity, backed by Red Balau's 1,580 Janka hardness and a natural lifespan of up to 40+ years. As a premium Red Balau wood siding option, this Class A fire-rated hardwood withstands extreme weather, UV exposure, and heavy foot traffic without chemical treatment — perfect for exterior cladding and accent walls. In stock and ships nationwide — order 1x6 Red Balau 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: REDB-1X6-E4E-SB-L1

Configure Your Order

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

Exceptional Durability and Aesthetic Appeal

Eased-Edge (Standard)

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 Red Balau Siding — Complete Guide

Everything you need to know about eased-edge red balau siding

About 1x6 Red Balau Siding

Red Balau lumber, specifically in the E4E (edge four edges) profile and 1x6 nominal size, is an outstanding choice for exterior siding and cladding applications. Known for its superior dimensional stability and natural weather resistance, Red Balau offers an impressive solution for those seeking both performance and aesthetic quality in their building projects. The E4E profile enhances the overall appearance by providing clean lines and well-defined shadowing, while also allowing for versatile installation orientations, whether vertical or horizontal.

  • Superior dimensional stability minimizes warping and twisting
  • Natural resistance to moisture and weathering
  • E4E profile enhances visual appeal with clean lines
  • Suitable for various installation orientations

Key Benefits

Dimensional Stability

Red Balau exhibits excellent dimensional stability, resisting warping and twisting even under varying weather conditions. This feature makes it ideal for long-term outdoor use.

Weather Resistance

Inherent moisture resistance allows Red Balau to withstand rain and high humidity, ensuring its longevity and reducing maintenance needs over time.

Aesthetic Appeal

The E4E profile delivers a refined appearance, enhancing shadow lines and visual depth, which can elevate the overall design of any building.

Technical Specifications

Janka Hardness

1580

Density

59 lbs/ft³

Durability Rating

High

Dimensional Stability

Excellent

Installation Guide

Difficulty:
Moderate

Key Tips:

  • Ensure proper spacing to account for expansion and contraction
  • Use corrosion-resistant fasteners to preserve integrity
  • Install with adequate ventilation to promote airflow behind the cladding

Recommended Tools:

Power drill
Saw (circular or miter)
Level

Maintenance & Care

Cleaning

For maintenance, clean with mild soap and water; avoid harsh chemicals. Regular inspections can help identify any signs of wear or damage.

Finishing

Periodic reapplication of an appropriate finish can enhance UV resistance and maintain color.

Weathering

Natural weathering will cause color to change; consider finishing products that help retain desired aesthetics.

1x6 Red Balau Siding — Frequently Asked Questions

A 1x6 Red Balau board weighs approximately 2.01 lbs per linear foot. Red Balau has a density of about 59 lbs/ft³, making it one of the densest commercially available hardwoods. A 12-foot 1x6 Red Balau board weighs approximately 20 lbs. Always factor weight into your structural and shipping calculations.

1x6 Red Balau 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. Red Balau achieves this exceptional longevity through its 1,580 Janka hardness and Class 1 durability rating, providing built-in resistance to rot, decay, insects, and fungal growth without chemical preservatives.

1x6 Red Balau 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, Red Balau'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 Red Balau wood siding outperforms composite in hardness (1,580 vs ~200 Janka), lifespan (up to 40+ years vs 25-30 years), and heat resistance. Unlike composites, Red Balau won't melt, warp in extreme heat, or fade significantly. While initial cost is similar ($8-15/LF installed), Red Balau wood decking costs less over its much longer lifetime. Composites do offer lower upfront maintenance, but Red Balau's natural beauty and durability make it the superior long-term investment.

Red Balau is widely considered one of the best woods for 1x6 siding boards. With a 1,580 Janka hardness rating, Class A fire-rated certification, and up to 40+-year lifespan, Red Balau (Bangkirai) outperforms nearly every other commercially available wood species. Other excellent options include Cumaru (Brazilian Teak) and Massaranduba (Brazilian Redwood), but Red Balau remains the industry benchmark for premium outdoor hardwood applications.

Red Balau 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.

Red Balau is DIY-friendly with proper preparation. Key requirements: (1) Always pre-drill all screw holes — Red Balau 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 Red Balau 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 Red Balau. We work only with suppliers who follow responsible forestry practices with full chain-of-custody transparency. Note: We are not FSC certified. Red Balau 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 Red Balau Siding — Complete Buyer's Guide

Red Balau, also known as Bangkirai, is a premium tropical hardwood sourced from Southeast Asia (Malaysia, Indonesia, Philippines). With a Janka hardness rating of 1,580 lbf and a density of 59 lbs/ft³, Red Balau is classified as Class 2 - Durable — one of the most durable commercial lumber species available. The heartwood exhibits light to medium red-brown with interlocked grain, moderately coarse texture, creating a striking natural appearance that improves with age.

Why Choose 1x6 Red Balau Wood for Your Siding?

As exterior cladding, Red Balau 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 Red Balau 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 Red Balau wood weather to a distinguished silver-gray patina. Red Balau carries a Class A - Low flame spread, making it suitable for wildfire-prone regions where code-compliant materials are required.

The 1x6 eased-edge (E4E) profile features gently rounded edges on all four sides, reducing the risk of splinters and creating a comfortable walking surface. This is the most versatile profile — suitable for face-screw installation with countersunk stainless steel fasteners. All Red Balau lumber is available in Select and Better grade with lengths ranging from 4′ to 20′. For detailed step-by-step instructions, consult our Red Balau installation guide. Long-term care recommendations are covered in our Red Balau maintenance guide.

1x6 Red Balau Siding — Installation & Coverage Specs

  • Recommended joist spacing: 16" on center for 1x6 boards (0.75" actual thickness)
  • Fastener placement: Face-screw with two stainless steel screws per joist, approximately 1" from each edge of the 5.5" face
  • Board weight: A 12-foot 1x6 Red Balau board weighs approximately 20 lbs (1.69 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 Red Balau — the 1,580 lbf hardness prevents direct screwing

Janka Hardness

1,580 lbf

Service Life

40+ years

Durability

Durable

Fire Rating

Class A

1x6 Red Balau Siding — Frequently Asked Questions

1x6 Red Balau 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. Red Balau achieves this exceptional longevity through its natural density (Janka hardness: 1,580 lbf) and Class 1 durability rating, which provide built-in resistance to rot, decay, insects, and fungal growth — all without chemical preservatives.

Use 305 or 316 stainless steel screws for all Red Balau installations — never use galvanized or coated deck screws, which will corrode and stain the wood. Pre-drill every hole using a countersink bit sized for your screw. For 1x6 boards, place screws approximately 1" from each edge and 3/4" from board ends. A combination drill/driver with a clutch setting prevents over-driving into this extremely hard wood.

1x6 Red Balau siding pricing varies by profile, grade, and board length. 1x6 E4E 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, Red Balau'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.

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