---
product_id: 51559533
title: "20 ft Foam Large 71506 Backer Rod for Gaps and Joints, 5/8-by-20 Feet, Gray, Black, 5/8\" x 20'"
brand: "md building products"
price: "16272 som"
currency: KGS
in_stock: true
url: https://www.desertcart.kg/products/51559533-20-ft-foam-large-71506-backer-rod-for-gaps-joints
store_origin: KG
region: Kyrgyzstan
---

# Easily trim to fit any gap size Weather-resistant for all-season durability 20 ft length for extensive coverage 20 ft Foam Large 71506 Backer Rod for Gaps and Joints, 5/8-by-20 Feet, Gray, Black, 5/8" x 20'

**Brand:** md building products
**Price:** 16272 som
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal smart, live comfortable—don’t let gaps steal your comfort!

## Quick Answers

- **What is this?** 20 ft Foam Large 71506 Backer Rod for Gaps and Joints, 5/8-by-20 Feet, Gray, Black, 5/8" x 20' by md building products
- **How much does it cost?** 16272 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/51559533-20-ft-foam-large-71506-backer-rod-for-gaps-joints)

## Best For

- md building products enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Use Home Hero:** From drafty doors to leaky roofs, this backer rod insulates, damp-proofs, and enhances airtightness across your home.
- • **Seamless Gap Mastery:** Effortlessly fills and seals medium gaps up to 5/8", blocking drafts and dust for a cozier, quieter space.
- • **Concrete-Ready Strength:** Ideal for expansion joints and concrete gaps, providing a solid base that ensures caulk adhesion lasts.
- • **Precision Fit, Zero Fuss:** Push in and trim with scissors for a perfect, snug fit—no adhesives or messy sealants needed.
- • **Built to Brave the Elements:** Crafted from premium weather-resistant materials, it guarantees long-lasting performance indoors and out—rain or shine.

## Overview

The M-D Building Products 20 ft Foam Backer Rod is a durable, weather-resistant gap filler designed for medium-sized joints. Made from rubber, vinyl, and silicone, it provides a reliable base for caulking, improves insulation, and prevents drafts and dust infiltration. Easy to install and trim, it’s perfect for both indoor and outdoor use, including concrete expansion joints, ensuring long-lasting protection and enhanced home comfort.

## Description

20 ft Foam Large 71506 Backer Rod for Gaps and Joints, 5/8-by-20 Feet, Gray, Black, 5/8" x 20'

## Features

- Quality Construction: This gap filler is made from high-quality, weather-resistant materials, ensuring long-lasting durability and performance. It effectively seals medium gaps between surfaces, preventing drafts and dust from entering your home. Suitable for both indoor and outdoor use, it withstands various weather conditions, providing consistent protection and improved comfort.
- Concrete Gap Filling Excellence: Our product excels in filling concrete gaps, creating a strong foundation for caulking projects. Utilize this foam to effectively fill joints between surfaces, ensuring dependable adhesion for caulking applications that promise enduring durability and resilience.
- Complete Gap Solution: This product provides versatile gap filling, preventing drafts and offering a sturdy base for caulking. Perfect for expansion joints in driveways and sidewalks, it can be twisted for larger gaps and easily trimmed with scissors to the desired size.
- Effortless Installation: Enjoy a hassle-free setup by effortlessly pushing the backer rod into most joint openings until it fits snugly. Once installed, enhance the seal further by applying caulk on top—no need for messy sealants or adhesives.
- Versatile Application: From repairing leaky roofs and window sills to addressing drafty doors, the Backer Rod is your go-to solution! Beyond sealing surface gaps, it excels in insulating, enhancing airtightness, and damp-proofing your home—offering multifaceted benefits for various household needs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 609.6 x 1.59 x 1.59 cm; 49.9 g |
| Item model number | MD Building - 71506 |
| Number of pieces | 1 |
| Batteries Required? | No |
| Batteries included? | No |
| Material Type(s) | Rubber Vinyl Silicone |
| Colour | Black |
| ASIN | B000BQP1D4 |

## Product Details

- **Colour:** Black
- **Brand:** MD Building Products
- **Item weight:** 50 g
- **Item form:** Strip
- **Surface recommendation:** Door

## Images

![20 ft Foam Large 71506 Backer Rod for Gaps and Joints, 5/8-by-20 Feet, Gray, Black, 5/8" x 20' - Image 1](https://m.media-amazon.com/images/I/61HHJ4QXlvL.jpg)
![20 ft Foam Large 71506 Backer Rod for Gaps and Joints, 5/8-by-20 Feet, Gray, Black, 5/8" x 20' - Image 2](https://m.media-amazon.com/images/I/81SA6HZLHaL.jpg)
![20 ft Foam Large 71506 Backer Rod for Gaps and Joints, 5/8-by-20 Feet, Gray, Black, 5/8" x 20' - Image 3](https://m.media-amazon.com/images/I/818J6gOM3ZL.jpg)
![20 ft Foam Large 71506 Backer Rod for Gaps and Joints, 5/8-by-20 Feet, Gray, Black, 5/8" x 20' - Image 4](https://m.media-amazon.com/images/I/81Py1S2524L.jpg)
![20 ft Foam Large 71506 Backer Rod for Gaps and Joints, 5/8-by-20 Feet, Gray, Black, 5/8" x 20' - Image 5](https://m.media-amazon.com/images/I/81-xBTntOuL.jpg)

## Available Options

This product comes in different **Colour Name** options.

## Questions & Answers

**Q: This will seem like a bizarre question, but does it smell? (Like the majority of Chinese-made closed cell foam materials.)**
A: I use it for taxidermy purposes and havent noticed any smell.

**Q: Is product gray or black?**
A: Mine was Gray...

**Q: Can i use that to repair my garage floor cracks with the concrete caulk?**
A: I wouldn’t. It’s just foam. If the crack is huge I would use sand as a filler and apply a deep layer of concrete patch

**Q: does this break down or come apart easily when wet?**
A: No. Its foam.. it doesnt break down at all

## Frequently Bought Together

- M-D Building Products - Versatile Gray Foam Backer Rod - Set 5/8in x 20ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71506)
- M-D Building Products - Versatile Gray Foam Backer Rod - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling, 3/8 by 20 Feet, (Pack of 2) (71464)
- M-D Building Products 71480 1/2-Inch by 20-Feet Backer Rod, Gray

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**Shop now:** [https://www.desertcart.kg/products/51559533-20-ft-foam-large-71506-backer-rod-for-gaps-joints](https://www.desertcart.kg/products/51559533-20-ft-foam-large-71506-backer-rod-for-gaps-joints)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-01-23*