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Buying guide

LED Screen Cabinet Sizes Explained: GI vs Die-cast

Which cabinet sizes fit which modules, and when to choose GI steel, die-cast aluminium, slim or clamshell designs.

An LED cabinet is the frame that holds the modules, power supplies and receiving card. A screen is built by joining cabinets side by side, so the cabinet size decides which screen sizes you can make and how many modules each one holds.

Cabinet size follows module size

Most modules measure 320 × 160 mm, so cabinet sides are multiples of 320 mm across and 160 mm down. Some outdoor P6 modules are 192 × 192 mm, and some indoor modules are 250 × 250 mm, which need matching cabinets.

CabinetModuleLayoutModules per cabinet
640 × 640 mm320 × 1602 × 48
640 × 480 mm320 × 1602 × 36
960 × 960 mm320 × 1603 × 618
1280 × 1280 mm320 × 1604 × 832
960 × 960 mm (P6)192 × 1925 × 525
768 × 768 mm192 × 1924 × 416
500 × 500 mm250 × 2502 × 24

GI steel or die-cast aluminium?

  • GI (galvanised iron) cabinets are made from about 1.2 mm powder-coated steel sheet. They are economical, come in almost any size and suit fixed outdoor screens and hoardings.
  • Die-cast aluminium cabinets are cast to tight tolerances, so they line up very precisely. They are popular for rental and event screens that are assembled and taken down often, and for fine-pitch walls where gaps between cabinets show.

Depth and service access

  • Standard depth (about 120 mm) leaves room for supplies and cards behind the modules, serviced from the back.
  • Slim cabinets such as Slim95 (95 mm deep) suit walls with little space behind them.
  • Clamshell cabinets (about 140 mm) open on hinges for access from the front or back.
  • Front-service modules and cabinets let you replace parts from the viewing side, essential when the screen is fixed flat against a wall.

Browse all cabinets and frames, or tell us your screen size and we will suggest a cabinet layout.

Written by MG TechLink. Updated 29 October 2026. Figures come from manufacturers' datasheets; always check the datasheet of the exact model you buy.

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