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Outdoor Flooring

1x4 Cumaru Pre-Grooved Outdoor Flooring

Engineered for covered porches and protected outdoor spaces, this 1x4 Cumaru outdoor flooring board (Pre-Grooved profile) leverages Cumaru's 3,330 Janka hardness for a natural lifespan of up to 50+ years. The pre-grooved profile accepts hidden clip fastening systems like Ipe Clip®, delivering a clean, screw-free surface ideal for covered porches and outdoor living spaces. In stock and ships nationwide — order 1x4 Cumaru outdoor flooring 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: CUMA-1X4-PG-SB-L1

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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

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