WarMag's best-selling Base Sheet is a no-nonsense, magnet-receptive surface designed for secure and hassle-free magnetic miniature storage.
Very receptive to WarMag® magnets
Made from high-quality rubber steel
Easy to install – strong self-adhesive backing
Fits many sizes of ‘Really Useful Box’®
Anti-scuff coating with a low-glare matt finish
Matching sticky labels included
What’s Included – Our best-selling Base Sheet is a non-nonsense, magnet-receptive surface made from flexible rubber steel (ferrous), designed to create secure, magnetic wargaming storage for your miniatures.
Really Useful Box – This sheet is precision-cut to fit the most popular Really Useful Box sizes used for miniature transportation: 4 Litre and 9 Litre XL with Lip Tray (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.
Rounded Corners – Unlike standard A4 sheets, we cut our Base Sheets with rounded corners for a neater, sleeker finish – offering that extra bit of style.
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.
Sticky Labels Included – Every Base Sheet comes with a set of matching sticky labels for quick box identification. Whether you’re sorting armies, game systems or faction types, these labels help you find what you need at a glance. No more lifting lids to guess what’s inside – just label it, stack it and go.
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
9 Litre XL with Lip Tray: Ext. 395×255×205mm / Int. Bottom Layer: 335×210×105mm & Top Layer: 335×210×75mm
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.
