My Vinyl Collection

How to make a clear vinyl, gridded mat for showing outside terrain in RPGs

Terrain made with vinyl grid over posterboard
Sample Exterior Terrain

I’ve found a unique way to model outside terrain in my RPG games that I would like to share with you.

Although some players like to use rulers or measuring sticks to measure distances when gaming, I personally like to use grids. Playing on a grid makes it easy to determine movement and range of spells and effects.

Rather than using a commercial vinyl mat with a pre-printed grid, I created my own clear vinyl mat. By marking a grid on this mat, I can lay it over a variety of materials for some quick and easy scenes.

Let me give you some tips I discovered on the easiest way to make this mat.

Materials
  • clear vinyl from fabric store
  • iron and pressing cloth
  • paper template
  • permanent black marker
  • rubbing alcohol
  • scissors
Directions

1. Spread the vinyl flat on a large table or floor. Don’t worry that it is all wrinkley.
We can fix that!
wrinkled vinyl fabric
2. Use a warm iron and a pressing cloth to flatten the vinyl. Iron slowly only on the pressing cloth, and make sure you do NOT touch the vinyl directly with the iron or it WILL melt.
Iron vinyl with pressing cloth
3. While the vinyl is warm, smooth it out flat with your hands.
Smooth out the vinyl
4. Print a grid on the computer. You can use this pdf file simpleGrid for 1″ or 1.25″ grids. (Typical scales used in gaming are 1″,1.25″, or 1.5″ scales depending on the particular game or standard you want to use.) Make sure to adjust your printer options when printing so that it is true to scale.
Grid to use as template for RPG mat
5. Put paper under the vinyl and draw marks over the intersections using a permanent marker. I like the subtle look of large black dots rather than lines or crosses. Move the paper when needed. Slide the vinyl to line up previous dots on the edge of the grid, so that your pattern always stays correct.
Marking dots on vinyl with marker
6. Don’t worry if you goof up! You should be able to remove stray marks on the vinyl using rubbing alcohol on a paper towel.
Removing marker with rubbing alcohol
7. When you are all done, let it dry, and then trim around it with scissors, rounding the corners.
Trim completed vinyl mat

You can put many types of materials under the mat for interesting looks. I have a green tablecloth that I usually use under it for forest terrain. You can also cut out blue posterboard for water and brown paper for muddy banks and courtyards. I’ve used a gray tablecloth for parts of a dungeon, and white posterboard for snow.

Keep in mind that this is still a vinyl mat so you can also use wet erase markers to draw on it! This gives you a lot of flexibility for drawing tunnels and other features. You also have the option of improvising if something unexpected comes up.

Be careful to clean the mat right after the game session, so the mat doesn’t get stained. Make sure to keep the side you drew on with marker on the bottom side to protect it from any cleaners you use. I roll mine up on a cardboard tube between sessions so that it doesn’t get wrinkled again.

Usually before the game session, I put posterboard on the table for the scenes that I am expecting that night. Then I cover them up with posterboard and put the vinyl mat on the top. When it is time to reveal the new scene to the players, I pull out the posterboard. Ta Da!

Lake scene with vinyl grid and posterboard
Courtyard scene with vinyl grid and brown paper
Snow scene with vinyl grid and posterboard

If you have any questions, ask them in the comment field below.


2 thoughts on “My Vinyl Collection”

  1. That’s a really cool idea. Do you happen to remember the thickness of the clear vinyl you bought from the fabric store?

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