---
product_id: 435195026
title: "BLUM 21 Inch Full Extension Concealed Undermount Drawer Slide 563F5330B with 100 Lbs. Weight Capacity and Soft Close for 3/4 inch Thick Drawers. (Pair)"
brand: "blum"
price: "€ 152.79"
currency: EUR
in_stock: true
reviews_count: 8
category: "Blum"
url: https://www.desertcart.sk/products/435195026-blum-21-inch-full-extension-concealed-undermount-drawer-slide-563f5330b
store_origin: SK
region: Slovakia
---

# 21 inch length Concealed design 100 lbs capacity BLUM 21 Inch Full Extension Concealed Undermount Drawer Slide 563F5330B with 100 Lbs. Weight Capacity and Soft Close for 3/4 inch Thick Drawers. (Pair)

**Brand:** blum
**Price:** € 152.79
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade Your Drawers with Blum's Precision Engineering!

## Quick Answers

- **What is this?** BLUM 21 Inch Full Extension Concealed Undermount Drawer Slide 563F5330B with 100 Lbs. Weight Capacity and Soft Close for 3/4 inch Thick Drawers. (Pair) by blum
- **How much does it cost?** € 152.79 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/435195026-blum-21-inch-full-extension-concealed-undermount-drawer-slide-563f5330b)

## Best For

- blum enthusiasts

## Why This Product

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

## Key Features

- • **Smooth Operation:** Experience effortless drawer access with full extension slides.
- • **Easy Installation:** Includes all necessary components for a hassle-free setup.
- • **Stability & Style:** Concealed undermount construction enhances both stability and aesthetics.
- • **Heavy-Duty Support:** Engineered to hold up to 100 lbs, perfect for your storage needs.
- • **Versatile Compatibility:** Designed for 3/4 inch thick drawers, adaptable for 5/8 or 1/2 inch.

## Overview

The BLUM 21 Inch Full Extension Concealed Undermount Drawer Slide 563F5330B is a robust and stylish solution for your cabinetry needs. With a weight capacity of 100 lbs and designed for 3/4 inch thick drawers, this pair of slides ensures smooth operation and easy access. The concealed design not only adds stability but also elevates the overall look of your furniture. Installation is straightforward with all necessary components included.

## Description

Discover Blum Tandem plus Blumotion (Soft-Close) Complete Pair. With 100 lbs static load-bearing capacity, full extension and soft closing. The drawer slide has elongated holes for depth adjustment & bottom mount holes that allow you to mount the slide to a shelf or the bottom of the cabinet. Blum Tandem 563F fits 3/4" drawer side thickness. The Complete Pair is supplied with 2 563F5330B runners (left and right), 2 T51.1801 locking devices (left and right), 2 rear brackets (needed for face frame only application) and screws.

Review: Nice upgrade from basic drawer slide rollers - Arrived with damage to 1 of the adjustment tabs. Still install because I could adjust with screwdriver if needed. Fit perfectly with minimal adjustments to abnormal sized drawers. Smooth and gentle soft close. Overall, like the product, but a link directly to install instructions in the box would be nice - even if it was a qr code. I found the install instructions on a retailer website.
Review: Best Quality Out There - I have used a few Chinese knock off undermount and always come back to Blum. These are great as they accept 3/4" thick drawers. Most knock offs go up to 5/8".

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09ZJ9HSX5 |
| Brand | Blum |
| Brand Name | Blum |
| Color | Orange |
| Customer Reviews | 4.6 out of 5 stars 36 Reviews |
| Drawer Type | Under Mounted Slide |
| Finish Type | Zinc Plated |
| Finish Types | Zinc Plated |
| Item Dimensions L x W x Thickness | 21"L x 0.75"W x 0.75"Th |
| Item Weight | 7 pounds |
| Manufacturer | Blum |
| Manufacturer Part Number | 563F5330B-CMSET |
| Material | Metal |
| Material Type | Metal |
| Maximum Weight Capacity | 100 pounds |
| Model Number | 563F5330B-CMSET |
| Mounting Type | Under Mount |
| Number of Items | 2 |
| Product Dimensions | 21"L x 0.75"W x 0.75"Th |
| Unit Count | 2 Count |

## Product Details

- **Brand:** Blum
- **Color:** Orange
- **Finish Type:** Zinc Plated
- **Material:** Metal
- **Product Dimensions:** 21"L x 0.75"W x 0.75"Th

## Images

![BLUM 21 Inch Full Extension Concealed Undermount Drawer Slide 563F5330B with 100 Lbs. Weight Capacity and Soft Close for 3/4 inch Thick Drawers. (Pair) - Image 1](https://m.media-amazon.com/images/I/71HhTyTNRJL.jpg)
![BLUM 21 Inch Full Extension Concealed Undermount Drawer Slide 563F5330B with 100 Lbs. Weight Capacity and Soft Close for 3/4 inch Thick Drawers. (Pair) - Image 2](https://m.media-amazon.com/images/I/71dvFlEfrcL.jpg)

## Questions & Answers

**Q: Are there supposed to be instructions with these?  Product came with nothing.**
A: No but you can find them online at the Blum website.  Burbonmoth on you tube did a great video on how to build cabinets.  He shows an easy way to use these on the part 2 of that series.

**Q: Does this come with the rear mounting brackets?**
A: This listing does not include the optional rear mounting brackets, but if you purchase them from us just send us a message and we will include them for free! Thank you.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice upgrade from basic drawer slide rollers
*by J***A on March 9, 2026*

Arrived with damage to 1 of the adjustment tabs. Still install because I could adjust with screwdriver if needed. Fit perfectly with minimal adjustments to abnormal sized drawers. Smooth and gentle soft close. Overall, like the product, but a link directly to install instructions in the box would be nice - even if it was a qr code. I found the install instructions on a retailer website.

### ⭐⭐⭐⭐⭐ Best Quality Out There
*by M***K on February 28, 2026*

I have used a few Chinese knock off undermount and always come back to Blum. These are great as they accept 3/4" thick drawers. Most knock offs go up to 5/8".

### ⭐⭐⭐⭐⭐ Very Pleased! Fit and works perfectly.
*by N***R on March 31, 2025*

I ordered several of these to replace several of the ones in my kitchen that were 13 years old. Some of the drawers were not soft closing properly. They were an exact fit and work perfectly. One of the mounting screw holes in the release mechanism was in a slightly different location but was very easy to move.

## Frequently Bought Together

- BLUM 21 Inch Full Extension Concealed Undermount Drawer Slide 563F5330B with 100 Lbs. Weight Capacity and Soft Close for 3/4 inch Thick Drawers. (Pair)
- 295.3750.01, Rear Mount Bracket for 552/562 & 563/569 12", Steel (Pack of 8)
- Side to Side Adjustable Locking Device for 563/569 Series Blum Tandem Drawer Slide - 2 Pair (4 Pieces) with Installation Screws

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**Shop now:** [https://www.desertcart.sk/products/435195026-blum-21-inch-full-extension-concealed-undermount-drawer-slide-563f5330b](https://www.desertcart.sk/products/435195026-blum-21-inch-full-extension-concealed-undermount-drawer-slide-563f5330b)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-08-16*