Blum installation instructions leave a lot to be desired but the hardware is great. I pretty much always use Blum Tandem plus Blumotion for my drawer slides. Once you learn how to make sense of the drawer sizing instructions, Blum drawer slides are much easier toinstall than side mounted drawer slides. Once your drawers are build, Installation is a breeze.
Every time I install these Blum drawer runners I have to look up the installation guide, FIND the section on notching and boring for the drawer runner and then translate the metric measurements into imperial so my brain will recognize what the instructions are telling me to do. They finally started including metric and imperial measurements so I don’t have to translate. Yeah! But when I look at this diagram, it makes my head spin a bit.

I think it could be done better. I need an instructions that make sense to my brain so I created the following instructions for anyone (including myself next time I need this info) to use whenthey are picking out drawer runners and then figuring out how to notch and bore for the locking mechanism.
Blum Tandem Plus 563 Installation Instructions
You have to order a right and a left locking mechanism for each drawer slide pair you purchase. (The slides come in pairs. The locking mechanisms are sold individually.)
Important: You have to order the correct glides for thethickness for the drawer material you are using. Most of us build drawers with1/2″ to 5/8″ thick material. The instructions in this post are specifically for the563H Drawer runner for 1/2″ -5/8″ material!
*Also, the Blum drawer runners come in 3″ increments. Decide which runners will work in your cabinet and then build your drawer the same length asyour runners.

Blum Antaro Internal Drawer Kit. 199mm, D Height. 65kg
The sides should extend the full length of your drawer. The front and back should be installed INSIDE your sides. With 1/2″ plywood, the math for the width of your drawer front and back is easy — subtract 1″ from the outer width.
The front and back parts can be attached to the drawer sides in a number of ways: the easiest of which are loose tenons, dowels or pocket screws.

Before you build your drawer, you need to prepare the drawer back. It’s easier to do this before assembly than after. You need to drill a 1/4″ hole and cut a notch for your drawer glide. You need to do this on both the right and left side of your drawer back. I have a tutorial for the Blum hole drilling jig I created. It holds the drawer back and allows one to drill the hole in the exactly correct location without measuring for every single hole.
Tandem 569f Soft Close 21 Inch
Make sure you are doing this on the BACK side of the drawer back. The groove for the drawer bottom is on the inside of the drawer. The opposite side of that groove is the drawer back (and the bottom of the drawer back — back.)

The notch you’ll need to cut out is 1/2″ tall by 1 3/8″ wide (minimum). You can cut that out with a jigsaw.
The 1/4″ hole you need to drill out is as shown below. 9/32″ is difficult to find on a tape measure so I find it easier to use a metric ruler for this part.

Movento Assembly And Installation
Using floating tenons, dowels or pocket screws. Make sure you DO NOT drill a pocket hole on or too near the groove for the drawer bottom. If you drive a screw in the groove, the drawer bottom will not slide into place.
When you’re drawers are built and you’re ready to install, check out my tutorial and tips for installing drawers with Blum Tandem with Blumotion drawer slides.

Make sure you are doing this on the BACK side of the drawer back. The groove for the drawer bottom is on the inside of the drawer. The opposite side of that groove is the drawer back (and the bottom of the drawer back — back.)

The notch you’ll need to cut out is 1/2″ tall by 1 3/8″ wide (minimum). You can cut that out with a jigsaw.
The 1/4″ hole you need to drill out is as shown below. 9/32″ is difficult to find on a tape measure so I find it easier to use a metric ruler for this part.

Movento Assembly And Installation
Using floating tenons, dowels or pocket screws. Make sure you DO NOT drill a pocket hole on or too near the groove for the drawer bottom. If you drive a screw in the groove, the drawer bottom will not slide into place.
When you’re drawers are built and you’re ready to install, check out my tutorial and tips for installing drawers with Blum Tandem with Blumotion drawer slides.

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