---
product_id: 38185938
title: "Mobile Flex Bottom Board Material - 4 ft x 14 ft"
brand: "mobile flex"
price: "A$41"
currency: AUD
in_stock: true
reviews_count: 8
category: "Mobile Flex"
url: https://www.desertcart.com.au/products/38185938-mobile-flex-bottom-board-material-4-ft-x-14-ft
store_origin: AU
region: Australia
---

# 100% waterproof barrier easy staple hold & patch 5x HUD puncture resistance Mobile Flex Bottom Board Material - 4 ft x 14 ft

**Brand:** mobile flex
**Price:** A$41
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal with Mobile Flex – where durability meets peace of mind!

## Quick Answers

- **What is this?** Mobile Flex Bottom Board Material - 4 ft x 14 ft by mobile flex
- **How much does it cost?** A$41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/38185938-mobile-flex-bottom-board-material-4-ft-x-14-ft)

## Best For

- mobile flex enthusiasts

## Why This Product

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

## Key Features

- • **Waterproof Shield:** Completely impervious to moisture, protecting your mobile home’s subfloor from water damage.
- • **Unmatched Durability:** Engineered with high-density polyethylene for long-lasting strength and weather resistance.
- • **Versatile Application:** Perfect for mobile home belly closures, wheel wells, and subfloor sheathing—trusted by vintage camper restorers.
- • **Effortless Installation:** Staple holdout is excellent, and any cuts can be quickly patched with Flex-Mend tape for seamless repairs.
- • **Superior Puncture Resistance:** Exceeds HUD standards by 5x, ensuring robust protection against wear and tear.

## Overview

Mobile Flex Bottom Board Material is a 4 ft x 14 ft black polyethylene closure designed specifically for mobile home belly protection. It features a woven high-density polyethylene core coated with low-density polyethylene, delivering superior waterproofing and puncture resistance that surpasses HUD standards by five times. Lightweight and easy to install, it offers excellent staple retention and simple patching options, making it the go-to solution for durable, weatherproof subfloor and wheel well protection.

## Description

Mobile Flex is a special bottom closure, woven from black high density polyethylene and extrusion coated with a continuous layer of low density polyethylene. The material is uniform in quality with no weak spots. Its beach puncture resistance is more than five times the minimum established by HUD! Staple hold out is excellent. Penetrations and cuts will not spread and can be easily patched using our Flex-Mend tape.

Review: Easy To Use . Great Product - I bought a vintage camper online without being able to view it in person & had it picked up by a shipper. Once it arrived I was able to quickly see it needed to be totally gutted including removing the entire floor. After much research for 'something' with which to sheath the new subfloor knowing there had to be some product to keep water away from the wood I found this wonderful item. My initial buy had a roll of tape to go along with this wrap. I still had tape so was pleased to find this was sold alone at a reduced cost. I not only wrapped the plywood subfloor but the wheel wells as well. Easy to work with this product & will use for any future endeavor.
Review: Flex board - Worked Perfectly 👍👍

## Features

- Mobile Home Belly Bottom board Closure 4 ft x 14 ft
- Mobile Flex is a special bottom closure, woven from black high density polyethylene and extrusion coated with a continuous layer of low density polyethylene.
- Mobile flex is totally impervious to water. Its strength can not be adversely affected by moisture.
- Mobile Flex is produced from a material that has been tested for durability and weatherability.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01N8ZS7PD |
| Backing Type | density,high density,low density |
| Best Sellers Rank | #89,537 in Office Products ( See Top 100 in Office Products ) #1,061 in Bulletin Boards |
| Brand | Mobile Flex |
| Brand Name | Mobile Flex |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 365 Reviews |
| Is Customizable? | No |
| Item Dimensions L x W | 168"L x 48"W |
| Item Height | 0.5 centimeters |
| Item Shape | Rectangular |
| Item Weight | 0.4 Kilograms |
| Manufacturer | VP Products |
| Material | Polyethylene |
| Material Type | Polyethylene |
| Mounting Type | floor mount |
| Pattern | Solid |
| Shape | Rectangular |
| Size | 4 ft x 14 ft |
| UPC | 685380004703 |

## Product Details

- **Material:** Polyethylene
- **Color:** Black
- **Brand:** Mobile Flex
- **Size:** 4 ft x 14 ft
- **Item Weight:** 0.4 Kilograms

## Images

![Mobile Flex Bottom Board Material - 4 ft x 14 ft - Image 1](https://m.media-amazon.com/images/I/61f-cO6w7eL.jpg)
![Mobile Flex Bottom Board Material - 4 ft x 14 ft - Image 2](https://m.media-amazon.com/images/I/81wz15FjyhL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy To Use . Great Product
*by P***A on January 29, 2018*

I bought a vintage camper online without being able to view it in person & had it picked up by a shipper. Once it arrived I was able to quickly see it needed to be totally gutted including removing the entire floor. After much research for 'something' with which to sheath the new subfloor knowing there had to be some product to keep water away from the wood I found this wonderful item. My initial buy had a roll of tape to go along with this wrap. I still had tape so was pleased to find this was sold alone at a reduced cost. I not only wrapped the plywood subfloor but the wheel wells as well. Easy to work with this product & will use for any future endeavor.

### ⭐⭐⭐⭐⭐ Flex board
*by S***E on November 8, 2025*

Worked Perfectly 👍👍

### ⭐⭐⭐⭐⭐ Good choice to cover the bottom of a rv slide
*by J***R on November 6, 2025*

Usedafter replace slide floor. So far so good. Price was great.

## Frequently Bought Together

- Mobile Flex Bottom Board Material - 4 ft x 14 ft
- Frienda RV Underbelly Material RV Underbelly Tape Mobile Home Thick Tape Camper Travel Trailer Belly Material Tear Repair Sealing Adhesive Patch Waterproof(1 Pack,4 Inches x 20 Feet)
- AP Products 001-SP213ACC Sta-Put SPII Spray Adhesive for Polystyrene Foam - 13 oz.

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**Shop now:** [https://www.desertcart.com.au/products/38185938-mobile-flex-bottom-board-material-4-ft-x-14-ft](https://www.desertcart.com.au/products/38185938-mobile-flex-bottom-board-material-4-ft-x-14-ft)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-08*