1x4 Massaranduba Tongue & Groove Siding board profile diagram
Siding

1x4 Massaranduba Tongue & Groove Siding

This 1x4 Massaranduba siding board (Tongue & Groove profile) offers unmatched exterior cladding longevity, backed by Massaranduba's 3,190 Janka hardness and a natural lifespan of up to 50+ 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 1x4 Massaranduba siding boards online or call 1-844-674-4455 for expert guidance.

1 x 4(0.75"×3.5" actual)[19.0mm × 88.9mm]
Contractor Trusted
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Ships Nationwide
SKU: MASS-1X4-TG-SB-L1

Configure Your Order

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

Durable, Weather-Resistant, and Aesthetically Pleasing Tongue-Groove Profile

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:1.28 lbs/LF
1' board:1.3 lbs

1x4 Massaranduba T&G Siding — Complete Guide

Everything you need to know about t&g massaranduba siding

About 1x4 Massaranduba Tongue & Groove Siding

Massaranduba lumber, known for its exceptional durability and weather resistance, makes it an ideal choice for exterior siding and cladding applications. The tongue-groove profile of this lumber not only enhances its aesthetic appeal with clean lines and seamless joints but also contributes to its structural integrity by allowing for efficient installation. This profile creates distinct shadow lines, adding depth and dimension to architectural designs, while enabling effective water drainage and ventilation when installed properly.

  • Excellent dimensional stability under changing weather conditions
  • Superior resistance to rot and insect damage
  • Attractive grain patterns with rich color variations
  • Ideal for both horizontal and vertical applications

Key Benefits

Durability

Massaranduba exhibits outstanding durability due to its high Janka hardness and resistance to rot, making it suitable for harsh weather conditions.

Aesthetic Appeal

The tongue-groove profile provides a polished finish with heightened visual interest, enhancing the overall design of any structure.

Longevity

When installed and maintained correctly, Massaranduba can last for decades, providing excellent value over its lifespan.

Technical Specifications

Janka Hardness

3190

Density

68 lbs/ft³

Durability Rating

High - Excellent for exterior use

Dimensional Stability

High dimensional stability, resistant to warping and twisting

Installation Guide

Difficulty:
Moderate

Key Tips:

  • Ensure proper spacing for thermal expansion
  • Use stainless steel fasteners to prevent corrosion
  • Install with ventilation to combat moisture buildup

Recommended Tools:

Drill
Saw (miter or circular)
Level
Measuring tape

Maintenance & Care

Cleaning

Regularly clean with mild soap and water to maintain appearance.

Finishing

Periodic application of UV-blocking sealants recommended to retain color and prevent graying.

Weathering

Exposure will enhance the wood's natural beauty, transitioning from deep reddish-brown to a more silvery-gray if left untreated.

1x4 Massaranduba Tongue & Groove Siding — Frequently Asked Questions

A 1x4 Massaranduba board weighs approximately 1.28 lbs per linear foot. Massaranduba has a density of about 69 lbs/ft³, making it one of the densest commercially available hardwoods. A 12-foot 1x4 Massaranduba board weighs approximately 15 lbs. Always factor weight into your structural and shipping calculations.

1x4 Massaranduba siding has an expected service life of up to 50+ years when properly installed. This is 3-5× longer than pressure-treated pine and 2-3× longer than cedar. Massaranduba achieves this exceptional longevity through its 3,190 Janka hardness and Class 1 durability rating, providing built-in resistance to rot, decay, insects, and fungal growth without chemical preservatives.

1x4 Massaranduba 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, Massaranduba's up to 50+-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 — 1x4 Massaranduba wood siding outperforms composite in hardness (3,190 vs ~200 Janka), lifespan (up to 50+ years vs 25-30 years), and heat resistance. Unlike composites, Massaranduba won't melt, warp in extreme heat, or fade significantly. While initial cost is similar ($8-15/LF installed), Massaranduba wood decking costs less over its much longer lifetime. Composites do offer lower upfront maintenance, but Massaranduba's natural beauty and durability make it the superior long-term investment.

Massaranduba is widely considered one of the best woods for 1x4 siding boards. With a 3,190 Janka hardness rating, Class A fire-rated certification, and up to 50+-year lifespan, Massaranduba (Brazilian Redwood) outperforms nearly every other commercially available wood species. Other excellent options include Cumaru (Brazilian Teak) and Massaranduba (Brazilian Redwood), but Massaranduba remains the industry benchmark for premium outdoor hardwood applications.

Massaranduba 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.

Massaranduba is DIY-friendly with proper preparation. Key requirements: (1) Always pre-drill all screw holes — Massaranduba 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 1x4 Massaranduba board has actual finished dimensions of 0.75" × 3.5" (19.0 x 88.9 mm). The "1x4" 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" × 3.5") when calculating material quantities and coverage for your project.

We responsibly, legally, and ethically source all our Massaranduba. We work only with suppliers who follow responsible forestry practices with full chain-of-custody transparency. Note: We are not FSC certified. Massaranduba trees grow naturally in diverse tropical forests and regenerate well under managed harvest. The extremely long lifespan (up to 50+ 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

1x4 Massaranduba Tongue & Groove Siding — Complete Buyer's Guide

Massaranduba, also known as Brazilian Redwood, is a premium tropical hardwood sourced from Northern South America (Brazil, Suriname, Venezuela). With a Janka hardness rating of 3,190 lbf and a density of 68 lbs/ft³, Massaranduba is classified as Class 1 - Very Durable — one of the most durable commercial lumber species available. The heartwood exhibits deep red to reddish-brown with straight to interlocked grain, fine to medium texture, creating a striking natural appearance that improves with age.

Why Choose 1x4 Massaranduba Wood for Your Siding?

As exterior cladding, Massaranduba 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 1x4 Massaranduba siding delivers a service life of 50+ years with minimal maintenance — an optional annual oil treatment preserves the original color, or you can let the Massaranduba wood weather to a distinguished silver-gray patina. Massaranduba carries a Class A - Low flame spread, making it suitable for wildfire-prone regions where code-compliant materials are required.

The 1x4 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 Massaranduba lumber is available in Select and Better grade with lengths ranging from 4′ to 20′. For detailed step-by-step instructions, consult our Massaranduba installation guide. Long-term care recommendations are covered in our Massaranduba maintenance guide.

1x4 Massaranduba Siding — Installation & Coverage Specs

  • Recommended joist spacing: 16" on center for 1x4 boards (0.75" actual thickness)
  • Fastener placement: Secure per profile requirements, one fastener per joist minimum
  • Board weight: A 12-foot 1x4 Massaranduba board weighs approximately 15 lbs (1.26 lbs/LF)
  • Coverage: Each 12-foot 1x4 board covers 3.5 sq ft of siding surface (3.5" face width)
  • Pre-drilling required: Always pre-drill in Massaranduba — the 3,190 lbf hardness prevents direct screwing

Janka Hardness

3,190 lbf

Service Life

50+ years

Durability

Very Durable

Fire Rating

Class A

1x4 Massaranduba Siding — Frequently Asked Questions

1x4 Massaranduba siding has an expected service life of 50+ years when properly installed and maintained. This is 3-5x longer than pressure-treated pine and 2-3x longer than cedar. Massaranduba achieves this exceptional longevity through its natural density (Janka hardness: 3,190 lbf) and Class 1 durability rating, which provide built-in resistance to rot, decay, insects, and fungal growth — all without chemical preservatives.

1x4 tongue & groove Massaranduba 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 Massaranduba to prevent splitting. T&G Massaranduba should only be used in covered or semi-protected areas.

1x4 Massaranduba siding pricing varies by profile, grade, and board length. 1x4 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, Massaranduba's 50+ 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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