How to Use Clear Grid Overlays for Your RPG Table

By Dwarven Forge - Miniature Terrain for the gaming community | Published: 2026-10-28

Category: How-to Guides

Learn how to set up and use clear grid overlays to add subtle movement grids to your terrain builds without ruining the look.

Quick answer

Clear grid overlays let you add a 1-inch movement grid to any tabletop surface while keeping your terrain or map art fully visible. The key is proper alignment and secure placement so the overlay doesn't shift during play.

Why use acetate overlays instead of a printed mat

A printed grid mat can clash with custom terrain pieces or hand-drawn maps. Clear acetate overlays sit on top of your build, so the grid is there when you need it for movement and area effects but invisible enough that it doesn't distract from the scene.

The Cross Overlay Clear Grids use cross-corners instead of full lines, which makes the grid even more subtle. This is especially helpful if you're photographing your table or streaming a game.

Limitations to know before you start

Acetate sheets can slide on smooth surfaces, so you may need to tape down the corners or use a textured table cloth underneath. They can also pick up static dust, which shows up under bright gaming lights. A quick wipe with a dry microfiber cloth before each session keeps them clear.

How to set up clear grid overlays on your table

1. Clean your table surface and the overlay: Wipe the table and the acetate sheet with a dry microfiber cloth to remove dust or fingerprints. Dust under the sheet can create distracting shadows. A quick pre-session clean takes 30 seconds and prevents static dust from showing under your gaming lights.
2. Place the overlay over your terrain or map: Lay the sheet gently on top of your build, aligning the grid with your intended movement zones. If you're using multiple sheets for a larger table, overlap the edges by about half an inch so the grid lines match up. Common mistake: pressing the sheet down hard can trap air bubbles. Lay it flat from one edge and smooth it out slowly.
3. Secure the corners to prevent shifting: Use a small piece of painter's tape or a reusable tack at each corner. This keeps the overlay from sliding when players reach across the table or move miniatures. Avoid standard adhesive tape—it can leave residue. Painter's tape or poster putty works without damaging the acetate.
4. Remove and store the overlay after the session: Peel off the tape gently, wipe the sheet clean, and store it flat in the original packaging or between two rigid boards. Acetate can warp if stored rolled or under heavy objects. Storing the sheets flat prevents creases and keeps the grid accurate for your next game.

Product facts

Cross Overlay Clear Grids 12" x 12"; Set of 4: A pack of four 12x12 acetate 1-inch grid overlays with cross-corners instead of complete lines. The cross-corner design gives you a usable grid that is much less visually intrusive than a standard full-line grid, making it ideal for display or streamed games.
Cross Overlay Clear Grids 12" x 12"; Set of 4