Drawer box for Blum TANDEM plus BLUMOTION 563: sizes, notch and hook holes

Which 563 do you have?

The model is printed on the runner, and the letter after the number decides which box fits. Read it off the metal before measuring anything.

The 569 series is discontinued. It uses the same box, notch, hook hole and T51.1901 clips as a 563, so order this page’s prep either way; if you are also buying new runners, Blum’s current heavy duty equivalent is MOVENTO 769, which needs the MOVENTO box instead. There is no “563A” runner in Blum’s US program.

Minimum inside cabinet depth

The 563. needs 477 mm (18 25/32 in) at 18 in and 553 mm (21 13/16 in) at 21 in, since it has no rear bracket adding depth. All figures are from Blum’s 563H and 563F installation instructions.

Clips: do we install one, do we sell one?

A drawer box with Blum locking devices has a clip pressed into the front bottom corner that grabs the runner; Blum does not include it with the runner. Blum T51.1901 Clips on our configurator adds the standard left and right devices, installed for $5.99. T51.1901 adjusts 3 mm in height and 1.5 mm side to side, and needs at least 6 11/16 in of inside drawer width.

We sell the T51.1901 pair and the Blum runners themselves. Want T51.1801, T51.1901.PS or the narrow T51.0801.20 instead? Choose No Clips in the configurator, buy the part separately, and press it on; the pre bore is the same for every 563 device. T51.1700 is not a 563 clip; Blum lists it for the older TANDEM edge 554H, so do not order it for a 563.

• 

  Blum Tandem Plus 563F undermount drawer slide, pair

  From $46.06

  View product
• 

  Blum Tandem Plus 563H undermount drawer slide, pair

  From $46.06

  View product
• 

  Blum T51.1901 front locking clips for Tandem 563

  $17.46

  View product

Every other 563 device, rear bracket and socket is in Blum accessories. Prices shown are current as of October 2026.

A worked example

Say your cabinet opening is 18 in wide, the stamped runner reads “563H 4570,” and you want our standard 5/8 in sides. Outside width is 18 in minus 10 mm (13/32 in), which is 17 19/32 in. Depth matches the 18 in runner exactly. The opening is 11 in tall, so a height of 10 1/8 in stays under the opening minus 13/16 in rule with room to spare. On the configurator: Notching “Notched & Drilled For Undermount Slides,” Slide Brand/Model “Blum TANDEM plus BLUMOTION 563,” Clips “Blum T51.1901 Clips,” Depth Selection “18” Inches (D),” width 17 19/32 in, height 10 1/8 in.

Common mistakes

• Ordering 3/4 in sides on a 563H. It is not rated for them; use a 563F.
• Entering the old box size instead of the opening. An old box often has extra play built in; measure the opening or use the rule above.
• Using a 1 5/8 in deduction. That is 41.3 mm, which leaves the inside slightly wider than Blum’s tolerance allows. Use 13/32 in for 5/8 in sides.
• Box length not equal to the runner. A 21 in runner needs a 21 in box, not the old box’s depth if the runner changed.
• Forgetting the locking devices. Blum does not include them with the runner; add Blum T51.1901 Clips or order the part separately.
• Buying T51.1700 for a 563. That part is for the older TANDEM edge 554H.
• 12 mm “1/2 in” Baltic Birch cut to the 5/8 in sides rule. Use the 23/32 in deduction instead.

Questions

Do I have to buy new slides to replace a Blum Tandem drawer?

No, as long as the runners still work. Reuse the TANDEM runners already in the cabinet and replace only the box; buy a new pair only if a runner is bent or the soft close has failed.

What width do I order for a Blum 563 box?

This is Blum’s 42 mm drawer rule: inside width equals the opening minus 42 mm (1 21/32 in). With our standard 5/8 in sides that is an outside width of opening minus 13/32 in; with 1/2 in sides, minus 5/8 in. A 563F with 3/4 in sides is opening minus 7/16 in.

Does the same box fit Blum TANDEM 563 and MOVENTO?

Almost, but not quite. Width, recess and hook holes are identical, but MOVENTO’s clip pre bore sits 23 mm along the side from the front corner, versus 32 mm on TANDEM, and MOVENTO wants a 50 mm notch instead of 35 mm. A box cut to MOVENTO’s notch and pre bore clears TANDEM too if you use MOVENTO’s own clips; the two brands’ locking devices are never interchangeable.

My runner says 569. What drawer box do I order?

Order this page’s Blum TANDEM plus BLUMOTION 563 prep. The 569 uses the same box, notch, hook holes and T51.1901 clips; it is just a heavier duty runner. The 569 is discontinued, so new replacement runners would be MOVENTO 769, which needs a different box.

Can I use a rear bracket with a Blum 563. runner?

No. The 563 dot is for frameless or blocked out cabinets only. Rear brackets and sockets fit the 563H and 563F.

Does Gritly drill the Blum locking device holes?

Yes. The 2.5 mm, 10 mm deep holes at 75 degrees are part of the notch and drill prep, so the clip presses straight on whether we install it or you do.