---
product_id: 47734015
title: "Blum Tandem Plus BLUMOTION 21\" Undermount Drawer Slides Kit Full Extension"
brand: "blum"
price: "€ 528.32"
currency: EUR
in_stock: true
reviews_count: 9
category: "Blum"
url: https://www.desertcart.pt/products/47734015-blum-tandem-plus-blumotion-21-undermount-drawer-slides-kit-full
store_origin: PT
region: Portugal
---

# 21-inch full extension Integrated BLUMOTION soft close Supports up to 100 lbs Blum Tandem Plus BLUMOTION 21" Undermount Drawer Slides Kit Full Extension

**Brand:** blum
**Price:** € 528.32
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your cabinetry game with silent, smooth, and sturdy drawer slides!

## Quick Answers

- **What is this?** Blum Tandem Plus BLUMOTION 21" Undermount Drawer Slides Kit Full Extension by blum
- **How much does it cost?** € 528.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/47734015-blum-tandem-plus-blumotion-21-undermount-drawer-slides-kit-full)

## 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

- • **Heavy-Duty Durability:** Engineered to support up to 100 pounds, perfect for your heaviest kitchen or office drawers.
- • **Trusted Craftsmanship:** Proudly made in the USA with premium European components, backed by Blum’s lifetime warranty.
- • **Effortless DIY Precision:** Tool-free height and tilt adjustments let you achieve flawless drawer alignment like a pro.
- • **Whisper-Quiet Soft Close:** BLUMOTION tech ensures every drawer closes gently, eliminating cabinet slams and noise.
- • **Seamless Full-Access Glide:** Enjoy complete drawer visibility and reach with smooth 21-inch full extension slides.

## Overview

The Blum Tandem Plus BLUMOTION 21" Undermount Drawer Slides Kit offers full-extension access with a sleek concealed design, supporting up to 100 lbs. Featuring integrated BLUMOTION soft-close technology, these zinc-plated slides ensure quiet, gentle drawer operation. The kit includes all mounting hardware for face frame and frameless cabinets, with easy, tool-free adjustments for perfect alignment. Manufactured in the USA with premium components, it’s a durable, professional-grade solution backed by a limited lifetime warranty.

## Description

Upgrade your cabinetry with Blum TANDEM plus BLUMOTION concealed undermount runners, also called drawer slides or glides, designed for a clean look and smooth performance. These 21-inch drawer slides provide full-extension access so you can reach every item and maximize storage space. Perfect for kitchens, bathrooms and custom furniture projects. Each kit includes everything you need: a pair of left and right drawer slides, locking devices, rear mounting brackets and screws. Enjoy the luxury of soft close every time. Integrated BLUMOTION technology ensures drawers close gently and quietly, protecting your cabinetry and eliminating slamming. Optional bottom mount holes provide flexibility for attaching runners to the cabinet bottom. Installation is simple and tool-free height, side and tilt adjustments let you fine-tune drawer alignment for professional results. Before purchasing, check your measurements to ensure a perfect fit. TANDEM slides follow the standard American cabinet depth system: an 21-inch runner pairs with an 21-inch drawer length. For face frame cabinets using rear mounting brackets, your inside cabinet depth should be at least 21-15/16 inches and no more than 23-19/32 inches. For frameless cabinets, only the minimum depth matters. These slides are built for wood drawers and support up to 100 pounds, making them ideal for deep or wide drawers that hold heavy items. TANDEM delivers durability and smooth operation for years to come. Proudly manufactured in our North Carolina facility using high-quality domestic and European components, Blum combines innovation with craftsmanship you can trust. Backed by Blum’s limited lifetime warranty.

Review: As always...it works - Product is as it should be. Quick delivery
Review: Great slides - Wish they had come with the right screws - Pros: These Blum slides are worth the money, and this was a good deal on six of them. So much cooler than side-mount drawer slides. The slides are reasonably forgiving in terms of alignment. The action is smooth, and the self-close is a wonder of engineering design. I could stare at them closing all day. Unavoidable: As for installing the slides, cabinets are tight spaces, and it would help to be a Hobbit. Cons: The packaging used to send these was, ahem, minimal. Scarcely thicker than a shoebox. Six of these weigh about 40-50 lbs, so the box was nearly falling apart when it arrived. I would suggest a few extra pieces of cardboard. I mounted these directly to the 'floor' of the cabinet, and as such, I needed the #6 Truss head screws ...which did not come with the kit. A quick trip to the hardware store solved that, but it seems like an oversight. When I ordered a single pair of these slides from another vendor, it came with the truss head screws. It was a small disappointment in an otherwise good experience.

## Features

- 6 Kits Includes 6 pairs of drawer slides + 6L & 6R locking devices + 12 rear mounting brackets + screws; Compatible with face frame and frameless cabinets
- Concealed undermount runner system for wood drawers with full extension access; ideal for kitchens, bathrooms and custom projects
- Integrated BLUMOTION soft close ensures drawers close gently and quietly every time, protecting your cabinets and giving you a premium experience
- DIY-friendly installation with tool-free height and tilt adjustments lets you fine-tune the position of your drawer fronts for perfect alignment and professional results
- The Blum Difference: Family-owned since 1952. Many Blum products are made in the USA with domestic and European components, delivering innovative cabinet solutions and quality you can trust

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07519F2QJ |
| Best Sellers Rank | #16,209 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #24 in Cabinet & Furniture Drawer Slides |
| Brand | Blum |
| Brand Name | Blum |
| Color | Zinc & Orange |
| Customer Reviews | 4.2 out of 5 stars 456 Reviews |
| Drawer Type | Under Mount |
| Finish Type | Zinc Plated |
| Finish Types | Zinc Plated |
| Global Trade Identification Number | 00632317423205 |
| Item Weight | 39.7 pounds |
| Manufacturer | Blum |
| Manufacturer Part Number | 563H5330B |
| Material | Zinc |
| Material Type | Zinc |
| Maximum Weight Capacity | 100 pounds |
| Model Number | 563H5330B |
| Mounting Type | Under Mount |
| Number of Items | 6 |
| Number of Packs | 6 |
| UPC | 632317423205 |
| Unit Count | 6 Count |
| Weight Limit | 100 pounds |

## Product Details

- **Brand:** Blum
- **Color:** Zinc & Orange
- **Finish Type:** Zinc Plated
- **Material:** Zinc
- **Mounting Type:** Under Mount

## Images

![Blum Tandem Plus BLUMOTION 21" Undermount Drawer Slides Kit Full Extension - Image 1](https://m.media-amazon.com/images/I/81pQE+upx-L.jpg)
![Blum Tandem Plus BLUMOTION 21" Undermount Drawer Slides Kit Full Extension - Image 2](https://m.media-amazon.com/images/I/81ZLwVkGYEL.jpg)
![Blum Tandem Plus BLUMOTION 21" Undermount Drawer Slides Kit Full Extension - Image 3](https://m.media-amazon.com/images/I/81ks5qh2ODL.jpg)
![Blum Tandem Plus BLUMOTION 21" Undermount Drawer Slides Kit Full Extension - Image 4](https://m.media-amazon.com/images/I/713GCQVw9yL.jpg)
![Blum Tandem Plus BLUMOTION 21" Undermount Drawer Slides Kit Full Extension - Image 5](https://m.media-amazon.com/images/I/61DA7L8i-NL.jpg)

## Available Options

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

## Questions & Answers

**Q: Enough for six drawers?**
A: are we sure that it actually does 6 drawers, not 3? It says 6 slides....

**Q: Do these slides have a feature to make them hold the fully opened position (like a detent)?**
A: When the drawer is pulled fully open it will remain in place, but there is no locking mechanism to keep them from being closed.

**Q: Where are these made?**
A: The company originated in Austria.
Products are made in the US and
others.

**Q: Are they returnable if they don't fit ?**
A: You pay return shipping and a 20% Restocking Fee.  OUCH!!

## Customer Reviews

### ⭐⭐⭐⭐⭐ As always...it works
*by D***K on June 30, 2026*

Product is as it should be. Quick delivery

### ⭐⭐⭐⭐⭐ Great slides - Wish they had come with the right screws
*by D***N on March 28, 2024*

Pros: These Blum slides are worth the money, and this was a good deal on six of them. So much cooler than side-mount drawer slides. The slides are reasonably forgiving in terms of alignment. The action is smooth, and the self-close is a wonder of engineering design. I could stare at them closing all day. Unavoidable: As for installing the slides, cabinets are tight spaces, and it would help to be a Hobbit. Cons: The packaging used to send these was, ahem, minimal. Scarcely thicker than a shoebox. Six of these weigh about 40-50 lbs, so the box was nearly falling apart when it arrived. I would suggest a few extra pieces of cardboard. I mounted these directly to the 'floor' of the cabinet, and as such, I needed the #6 Truss head screws ...which did not come with the kit. A quick trip to the hardware store solved that, but it seems like an oversight. When I ordered a single pair of these slides from another vendor, it came with the truss head screws. It was a small disappointment in an otherwise good experience.

### ⭐⭐⭐⭐⭐ Can't go Wrong with Blum
*by R***N on April 3, 2026*

We got these for the cabinets we are building based on several YouTube woodworkers using them. They are very solid and made of good material. They fit great into the cabinets. The price is good for the quality of the product. Instructions are great (once you can make a man read them) they seem easy to adjust and close nicely. Highly recommend

## Frequently Bought Together

- Blum 563H5330B 21" Tandem Drawer Slides Plus Blumotion Complete Kit. with Runners 563H, Locking Devices, Rear Mounting Brackets and Screws (for Face Frame Or Frameless Application), Zinc (Pack of 6)
- BLUM Tandem Plus BLUMOTION Drawer Slides Complete Pair, with Runners 563H, Locking Devices, Rear Mounting Brackets and Screws (for face Frame or Frameless Application) 21 Inch
- JIG IT Undermount Drilling Guide - Durable ABS Plastic Drill Angle Guide w/Steel Inserts - Drill Guide Jig for Blum Tandem & Drawer Slide – Ideal Woodworking Tools Includes Drill Bits, Collars & More

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**Shop now:** [https://www.desertcart.pt/products/47734015-blum-tandem-plus-blumotion-21-undermount-drawer-slides-kit-full](https://www.desertcart.pt/products/47734015-blum-tandem-plus-blumotion-21-undermount-drawer-slides-kit-full)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-08-24*