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  • Blum Drawer Slides

    Posted by Jason Jacoby on January 5, 2026 at 9:54 pm

    How should I size my drawer boxes when using Blum Tandem slides? They specify opening width minus 13/32″, but ordering boxes is limited to 1/16″ increments. Thanks!

    Jason Jacoby replied 9 months ago 1 Member · 2 Replies
  • 2 Replies
  • Chad

    Administrator
    January 6, 2026 at 1:02 pm

    We allow 3/16″ of clearance on each side of the drawer box, which means the drawer box itself is 3/8″ narrower than the cabinet opening where it will be installed.

    Please review the videos and written instructions at the following link before placing your order. This sizing formula applies only to drawer boxes made from 5/8″ thick material.

    If another vendor has suggested a 1/32″ increment, they are likely using a different drawer box material or construction method, which slightly changes the required opening size. Drawer box material thickness, slide model, and hardware all affect sizing, so we recommend keeping things simple and not mixing measurement instructions from different vendors, as that can lead to sizing errors.

    https://www.barkerdoor.com/Blum-Tandem-Plus-Blumotion-Drawer-Guides-s/118.htm


    • Jason Jacoby

      Guest
      January 6, 2026 at 2:33 pm

      The 13/32″ dimension is taken straight from the Blum instructions on their website.

      Blum Tandem Drawer Box Specifications

      I’m sure it’s a simple matter of converting metric to inches, as 13/32″ is slightly closer to 10mm than 3/8″.

      Thanks for confirming!

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