1x4 Massaranduba Pre-Grooved Decking board profile diagram
Decking

1x4 Massaranduba Pre-Grooved Decking

This 1x4 Massaranduba decking board (Pre-Grooved profile) pairs the proven outdoor performance of Massaranduba (Brazilian Redwood) with a 3,190 Janka hardness rating — one of the hardest commercially available woods on earth. The pre-grooved profile accepts hidden clip fastening systems like Ipe Clip®, delivering a clean, screw-free surface ideal for exterior decks, patios, and pool surrounds. In stock and ships nationwide — order 1x4 Massaranduba decking 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
Expert Backed
Ships Nationwide
SKU: MASS-1X4-PG-SB-L1

Configure Your Order

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

Premium Pregrooved 1x4 Profile for Durable and Aesthetic Decks

Pregrooved

Grooves on both edges for field boards

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 Pregrooved Decking — Complete Guide

Everything you need to know about pregrooved massaranduba decking

About 1x4 Massaranduba Pre-Grooved Decking

Massaranduba is an exceptional hardwood known for its remarkable strength and durability, making it an ideal choice for decking applications. This lumber not only withstands the challenges posed by weather and moisture but also provides a stunning aesthetic for any outdoor space. The pregrooved profile of Massaranduba decking offers significant advantages in both appearance and installation efficiency, allowing for seamless fastening and a polished finish.

  • High strength and durability
  • Excellent weather resistance
  • Aesthetically pleasing with pregrooved profile
  • Low maintenance requirements
  • Ideal for various decking applications

Key Benefits

Exceptional Durability

Massaranduba is naturally resistant to rot and insect damage, ensuring it stands the test of time even in harsh weather conditions.

Aesthetic Appeal

The rich color and fine grain patterns of Massaranduba enhance the visual appeal of decks, adding a touch of elegance to outdoor spaces.

Low Maintenance

Once installed, Massaranduba requires minimal maintenance, reducing long-term care efforts for homeowners and contractors alike.

Technical Specifications

Janka Hardness

3190

Density

68 lbs/ft³

Durability Rating

Class 1 (very durable)

Dimensional Stability

Excellent, with low shrinkage and expansion rates

Installation Guide

Difficulty:
Moderate

Key Tips:

  • Ensure proper joist spacing of 16 inches for optimal support
  • Leave appropriate expansion gaps between boards
  • Use stainless steel or coated screws to prevent corrosion

Recommended Tools:

Drill/driver
Screwdriver
Measuring tape
Saw

Maintenance & Care

Cleaning

Periodically clean the surface with mild soap and water; avoid harsh chemicals that could harm the wood finish.

Finishing

Apply a UV-protective finish to maintain color and prevent weathering; reapply as necessary based on exposure.

Weathering

Massaranduba will naturally weather to a silvery gray if left untreated, which is a common preference among some homeowners for aesthetic reasons.

1x4 Massaranduba Pre-Grooved Decking — 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 decking 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 decking 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 decking 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 decking 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) This pre-grooved profile uses hidden clip systems like Ipe Clip® for a screw-free surface. (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 Pregrooved Decking — 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 Deck?

Massaranduba decking delivers a naturally slip-resistant, splinter-free surface that stays cool underfoot even in direct sunlight. Unlike composite or pressure-treated alternatives, it never fades to a dull gray unless you want the natural silver patina look. Properly installed 1x4 Massaranduba decking 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 pregrooved profile has factory-milled grooves along both edges, designed specifically for hidden fastener clip systems like Ipe Clip or DeckWise. This creates a clean, screw-free surface with no visible hardware. 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 Decking — Installation & Coverage Specs

  • Recommended joist spacing: 16" on center for 1x4 boards (0.75" actual thickness)
  • Fastener placement: Hidden clip fastener in each factory-milled groove, one clip per joist
  • 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 decking 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 Decking — Frequently Asked Questions

1x4 Massaranduba decking 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 pregrooved Massaranduba boards are compatible with all major hidden fastener systems including Ipe Clip Extreme S, DeckWise Ipe Clip, and Camo EdgeClip. These stainless steel clips insert into the factory-milled grooves and secure the board to the joist from below — creating a clean surface with no visible screws. Always use 316 stainless steel clips in coastal environments.

1x4 Massaranduba decking pricing varies by profile, grade, and board length. 1x4 Pregrooved 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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