So a while back I had started working on a modular board for modern games. The tiles were 10in x 10in and about 3/4in thick. Each tile is a frame with a top glued on and designed so they would be held together by magnets.
Here is my original mock up of the 3 x 3 city board.

I had originally though about using hardboard or mdf but the tiles would be rather pricey. I was told Taskboard would work just as well so I decided to go with that for the frames and top. It didn't work. The tiles warped and would not line up properly. In the end it was very frustrating so I just shelved the whole project.
So after some time had passed and the horrible warped tiles nightmare faded I decided to give this a second go. Especially when I got access to a table saw and figured I could precisely cut 1/4in hardboard. This time around I decided to go with laser cut hardboard frames and a 1/4in hardboard top that I would cut myself.

I built a smaller 6in x 6in tile to make sure all of this worked before moving onto the larger size and making multiples. This included testing out the material for the sidewalks and the spray texture paint I want to use for the streets. This test tile is just primed, no painting yet. The new tiles are very strong when assembled and I have not had any warping, Yay!

The sidewalks are made out of 3mm Sintra board. There was a thread here on LAF with a city build using sintra board. I forget his username but this is a link to his blog. (
http://cutintotheearth.blogspot.com/2012/03/pulp-city-board.html). It is worth checking out.
At this point things are working out as I had originally hoped they would. I have enough stuff to make 26 tiles, but I am focusing on the 9 tiles I will be using for a skirmish game. I still have some building issues to work out but I am confident I can sort that out. My next big hurdle is painting the boards. At least I have the test tile to work out the paint scheme on

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-Audrey