---
product_id: 40114941
title: "6mm 1/4\" Soundproof Natural Wood Fiber Underlayment Boards"
brand: "steico"
price: "$580.66"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/40114941-6mm-1-4-soundproof-natural-wood-fiber-underlayment-boards
store_origin: US
region: United States of America
---

# 100% natural wood fiber, VOC-free 6mm thickness for optimal cushioning Certified soundproofing for quiet living 6mm 1/4" Soundproof Natural Wood Fiber Underlayment Boards

**Brand:** steico
**Price:** $580.66
**Availability:** ✅ In Stock

## Summary

> 🌟 Step into silence and sustainability with every floor!

## Quick Answers

- **What is this?** 6mm 1/4" Soundproof Natural Wood Fiber Underlayment Boards by steico
- **How much does it cost?** $580.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/40114941-6mm-1-4-soundproof-natural-wood-fiber-underlayment-boards)

## Best For

- steico enthusiasts

## Why This Product

- Trusted steico brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Friendly & Safe:** Made from pure wood fiber with zero VOC emissions, supporting healthy indoor air quality.
- • **Premium 6mm Thickness:** Delivers the perfect balance of comfort and durability underfoot.
- • **Squeak-Free Stability:** High compression strength protects floor integrity and eliminates annoying creaks.
- • **Certified Acoustic Excellence:** Proven soundproofing tested on concrete slabs for peaceful living spaces.
- • **Moisture-Resistant Breathability:** Vapor-open design absorbs minor leaks and prevents moisture buildup.

## Overview

STEICO Wood Fiber Flooring Underlayment offers a 6mm thick, natural wood fiber base that enhances soundproofing and floor comfort. Certified for superior acoustic performance, it prevents squeaks and springiness while promoting moisture control through breathable vapor-open technology. Ideal for laminate, vinyl, LVT, LVP, or hardwood floors, this eco-conscious underlayment supports a healthier home environment and long-lasting floor durability.

## Description

Fibers are bound together by “Lignin”, which is a wood resin that is secreted in the process of milling wood and acts as a binding agent of the wood fibers; a natural glue. This substance is responsible for the durability and sturdiness of the boards.
A very precise proportion of Lignin and fiber length is required to produce a high-quality product made from wood fibers. Only Pine and Spruce are suitable for this purpose.
STEICO boards were evaluated on a 152 mm (6”) concrete slab without a drop ceiling or additional materials aside from the finished floor
(please find specifications and test results in the downloadable section).

## Features

- Size: 6 millimeters (1/4 inch) thickness STEICO Underlayment, 90 square feet package, 15 sheets 2 feet x 3 feet
- Increased living comfort: Enjoy the superior sound control and acoustic improving properties of the natural fibers. US tested and certified after passing the strictest acoustic tests (6” concrete slab without ceiling assembly) which guarantees optimal sound proofing
- Enhances safety: Natural product made of pure wood fiber material without any glue additives. VOC, and other emissions free. The wood is certified per the guidelines of the PEFC. Made in EU using Binder-Lignin (Wood-Tar) at ISO Certified facilities
- Squeak-free floor: High compression strength protects the "click-lock" system of floors, ensures that the floor will not squeak, prevents "springy" effect when walking and increase floor longevity. Can be installed in multiple layers for leveling.
- Breathable material: “Vapor Open” technology prevents accumulation of moisture under the floor and allows air to circulate. Being a natural and porous material, it can absorb 20% of its weight in water and thus prevent a minor leak from spreading.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B01LD0RC4M |
| Best Sellers Rank | #122,381 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #37 in Flooring Underlayments |
| Brand Name | STEICO |
| Coverage | 90 square feet |
| Customer Reviews | 4.4 4.4 out of 5 stars (371) 4.4 out of 5 stars |
| Global Trade Identification Number | 05901115306382 |
| Item Thickness | 6 millimeters |
| Item Weight | 22 pounds |
| Manufacturer | STEICO |
| Manufacturer Part Number | PR16005956 |
| Material Type | Wood Fiber |
| Model Number | PR16005956 |
| Number Of Items | 1 |
| Recommended Uses For Product | Sound Insulation |
| Unit Count | 90 Square Feet |

## Product Details

- **Brand:** STEICO
- **Global Trade Identification Number:** 05901115306382
- **Item Thickness:** 6 millimeters
- **Material:** Wood Fiber
- **Recommended Uses For Product:** Sound Insulation

## Images

![6mm 1/4" Soundproof Natural Wood Fiber Underlayment Boards - Image 1](https://m.media-amazon.com/images/I/81sAuT+SCKL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: I see that taping is an option for this flooring but is it better for the microclimate to not tape it?**
A: Hello! Since the underlayment is designed as Water Vapor system, it has an ability to "breathe" no matter if tape is there or not (air is going through all the surface). Tape might be used on joints if desired to fix the Underlay and prevent moving while installing, tape could be used on full length of joints, by small pieces or could be not used at all.

**Q: I'll be installing this on a concrete slab and want to know if I can use it in a bathroom underneath tile or marble floors?**
A: We recommend using our Underlayment under the floating floors. In the bathrooms, you can use it in places where there is no direct water exposure to the finishing surface. Our clients do install STEICO Underlayment under tile but we have not accumulated enough experience yet to recommend using it this way.

**Q: I need 3mm in addition to the 1/4 inch that the Steico underlayment provides. Can I use a 3mm foam vapor barrier underneath to make up the difference?**
A: The thicker the layers, the spongier they get.  The more movement, the less wear.  I think layer them would be a mistake.

**Q: The 1/th and 1/4inch versions of this list the same delta iic.  how is this possible?  why is thicker better?**
A: Dear James, thank you for the great question! 
To be honest, we were also very surprised when we received the results of the testing. We have been explained that during the testing various materials perform differently within different structures. Testings with our products (both 1/8" and 1/4") were done according to the toughest requirements ( 6' concrete slab and no ceiling assembly). Apparently with the wood fiber materials and in this particular setting, it does not make a significant difference for the soundproofing which thickness do you select ( 1/8" or 1/4"). 
Thicker wood fiber underlayment is commonly used when the elevation of height is needed or the subfloor is uneven.
We hope it help!

## Frequently Bought Together

- Wood Fiber Flooring Underlayment, 6mm (1/4 Inch) Thickness - 90 Sq Ft, Natural Soundproofing Insulation, for Laminate, Vinyl, LVT, LVP, or Hardwood
- ROBERTS 50-040 Underlayment Tape Roll, Red
- 360 Sq Ft Acoustical Underlayment with Vapor Barrier for Luxury Vinyl Flooring

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-11-09*