Description
Give your models a strong, clean foundation with Terrain Genesis 25mm x 100mm Rectangular Bases. Designed for square-based rank-and-file wargames, these durable bases suit long, narrow models, conversions, custom units, and 3D printed miniatures.
A 25mm Frontage at Full Depth
This is the deepest base in our 25mm frontage range — 100mm long, twice the depth of a 25mm x 50mm cavalry base and a third deeper again than the 25mm x 75mm.
It suits models that are genuinely long rather than wide: extended conversions, drawn or wheeled pieces, and custom units where you want a narrow frontage but a lot of room front to back for the model and its groundwork.
Keeping the 25mm frontage means it ranks up cleanly beside 25mm square infantry and 25x50mm cavalry, so your unit widths stay consistent.
Built for the Span
Made from high-quality 3D printed PLA with a solid, sturdy design. At 4mm high, the section is what keeps a base this long and narrow flat — the hardest shape to keep rigid, and the one where a thin base bows first.
Textured Tops for Easier Basing
Every base is printed with a textured top surface, giving glue, sand, flock and texture paste something to key into. Basing materials grip far more readily than they do on a smooth face.
Glue-Free Magnet Holes
Every base has two 5mm x 2mm magnet holes printed directly into it, spaced along its length so a long model is held flat at both ends rather than pivoting on a single point. No glue required — magnets snap in by hand, or tap home with a light touch from a plastic mallet.
Pack Sizes
Available in 10-pack and 25-pack options.
Features
- 25mm x 100mm Rectangular Base – Standard 25mm frontage at maximum depth
- Textured Top Surface – Printed with a textured face so basing materials, glue and flock adhere easily
- Two Glue-Free Magnet Holes – Two 5mm x 2mm holes spaced along the base, so long models sit flat
- 4mm Profile – Rigid across a long, narrow span
- Classic Beveled Edge – Provides a professional tabletop miniature appearance
- Ranks Up Cleanly – Matches the frontage of 25mm square infantry and 25x50mm cavalry
- Magnets Included or Not, Your Choice – Choose the With Magnets option, or fit your own
- Pack Options – Available in 10-pack and 25-pack
- High-Quality 3D Printed PLA – Precision manufactured for consistent sizing and durability
- Made in the USA – Manufactured onsite by Terrain Genesis
Other Rectangular Base Sizes
- 25mm x 50mm – light and fast cavalry
- 25mm x 75mm – a middle depth on the same frontage
- 30mm x 60mm – Old World heavy cavalry and knights
- 50mm x 100mm – chariots
- 60mm x 100mm – large monsters and war engines
Browse the full Rectangular Bases range, or see our Square Bases for infantry.
Build Your Army on a Better Base.