Plain WarMag® Base Sheet (with square corners)

Description

Please note: This base sheet has square corners – not rounded corners like our other base sheets. If you would like rounded corners, please click here to see our Premium Base Sheets range. Also, to keep customer costs down, these sheets do not come with sticky labels like our other WarMag Base Sheets.

What’s Included

These are the magnet-receptive Base Sheets we’re truly known for. Our Square Corner Base Sheet is a no-nonsense, magnet-receptive surface made from flexible rubber steel (ferrous), designed to create secure, magnetic wargaming storage for your miniatures. 

Really Useful Box

This magnetic sheet is precision-cut to fit the most popular Really Useful Box sizes used for miniature transportation: 4 Litre and 9 Litre (Standard, XL and XXL) (UK / EU sizes). 

We’ve embraced the popularity of the Really Useful Box so your trusted plastic box becomes a magnetic, battle-ready Warhammer carry case without any faff.

Self-Adhesive Installation

There’s no cutting, gluing or measuring required. Simply peel off the backing, carefully place the sheet inside your Really Useful Box and press down for a clean, professional finish.

Magnetised Minis

Our Base Sheets pair perfectly with our self-adhesive magnets, creating a stable base for transporting and storing painted models. Whether you’re using magnets for Warhammer bases, Games Workshop armies or any other wargaming minis, these sheets keep your figures securely magnetized and tournament-ready.

Protective Coating

Each WarMag Base Sheet is finished with a durable gloss varnish that can help protect against scuffs, scratches and moisture during regular use. This smooth surface not only improves the look and feel of your magnetic bases but also helps prevent warping over time – keeping your miniatures steady and your storage looking sharp. 

Wargaming Themes

From scorched battlefields to distant starfields, our printed Base Sheets cover a huge range of wargaming environments and battlefield themes. Whether you’re deploying across muddy trenches, frozen tundra, jungle ruins or lava-scorched wastelands, there’s a design to match your army’s aesthetic.

Inspired by classic tabletop battlegrounds and sci-fi terrain, these designs evoke everything from grimdark cityscapes and arcane ruins to galactic conflict zones and alien worlds. Ideal for Warhammer 40K, Age of Sigmar, Horus Heresy, Star Wars Legion, Shatterpoint, Middle Earth Battle Strategy Game and other popular systems, they bring visual flair and lore-friendly immersion to your magnetic storage.

With a wide palette of eerie greens, void blacks, ash greys and blood reds, you can coordinate your base sheet with your army, faction or skirmish board. It’s more than storage – it’s scenery with purpose.

Tournament Ready

Heading to a wargames event or local club night? This magnetic Base Sheet keeps your minis, models or figures steady on the move. Ideal for miniature transportation and even display, it’s a reliable upgrade for players who travel light – but pack heavy armies.

Pair with round magnets, ovals or squares for Warhammer 40K, Age of Sigmar, Horus Heresy, Necromunda, Necrons, Kill Team and beyond.

Made in the UK

Designed and manufactured in our Devon-based workshop, WarMag Base Sheets are crafted by hobbyists, for hobbyists. Built to last, easy to use and a favourite for wargaming storage across multiple game systems.

*Approximate Box Fit (UK / EU Sizes Only)

• 4 Litre: Ext. 395×255×88mm / Int. 335×210×68mm
• 4 Litre XL: Ext. 395×255×130mm / Int. 335×210×115mm
• 4 Litre XXL: Ext. 395×255×170mm / Int. 335×210×155mm
• 9 Litre: Ext. 395×255×155mm / Int. 335×210×140mm
• 9 Litre XL: Ext. 395×255×205mm / Int. 335×210×180mm
• 9 Litre XXL: Ext. 395×255×245mm / Int. 335×210×220mm
• 9 Litre XL ‘Double Decker’: Ext. 395×255×205mm / Int. Bottom Layer: 335×210×105mm & Top Layer: 335×210×75mm
• 9 Litre XXL ‘Double Decker’: Ext. 395×255×245mm / Int. Bottom Layer: 335×210×105mm & Top Layer: 335×210×115mm

Note: These sheets are designed to fit UK / EU-sized Really Useful Boxes. The 4 Litre and 9 Litre boxes sold in the US are a different size, but the 9L XL size there is the same as it is in the UK. Very confusing, I know! But that’s not up to us, of course… Please send us an email ahead of your purchase if you’re not sure.