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This is Blum's dedicated marking template for positioning gallery rails on TANDEMBOX 378 drawer systems. It takes the guesswork out of gallery rail layout, giving installers a repeatable reference point for consistent, accurate results across every drawer in a run.
Gallery rails on TANDEMBOX 378 drawers need to land in the same position on every box for fronts and interior components to line up correctly. This marking template registers against the drawer geometry and lets the installer transfer that position cleanly, replacing tape-measure setups that introduce variation from box to box. It belongs at the bench during drawer assembly, before the gallery rail goes on — not as an afterthought during fitting.
The template is molded in orange, following Blum's color-coded tooling convention that ties installation accessories visually to their drawer platform. On a workbench shared by multiple drawer system families, the color distinction reduces the chance of grabbing the wrong gauge for the job. The orange finish is a system identifier, not a decorative choice.
Cabinet shops building TANDEMBOX 378 drawers in volume get the most out of this template — the time saved on repeated layout setups adds up fast across a production run. Custom builders and one-off installers benefit from the accuracy it brings to a task that is easy to eyeball incorrectly. If you are specifying or installing TANDEMBOX 378 drawer systems and adding gallery rails, this gauge belongs in the tool kit alongside the drawer components.
This marking gauge is specified for TANDEMBOX 378. Confirm the height code of your drawer system before ordering — Blum produces platform-matched templates, and this one is not interchangeable with gauges for other TANDEMBOX heights.
It is a reusable marking gauge. Keep it with your TANDEMBOX 378 installation supplies and reach for it on every drawer in the project.
No. This gauge is made for TANDEMBOX 378 specifically. LEGRABOX and MERIVOBOX drawer systems use their own Blum installation accessories; do not substitute between platforms.
Blum uses color coding to identify which installation accessories belong to which drawer platform. Orange marks this gauge as a TANDEMBOX tool, making it easy to sort from other Blum templates at the bench.
One consistent reference point for gallery rail placement means every drawer lines up the same way — cleaner installs, fewer adjustments, and a finished result that reflects the precision the TANDEMBOX system is built around.
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