# Field and game elements

In the FTC competition, the robot needs to run inside a 12X12 field. Having access to the field and a game element will be super useful to practice and iterate your robot. 

### Game elements

Every year the game has different game elements. Usually you always need to buy the game elements at <https://www.andymark.com/> for that season.

### Field tiles

The game field is 12X12 field, containing 36 of 2X2 tiles. You can buy the official FTC game tiles from [andymark](https://www.andymark.com/products/soft-tiles-for-first-tech-challenge-field-options?via=Z2lkOi8vYW5keW1hcmsvV29ya2FyZWE6OkNhdGFsb2c6OkNhdGVnb3J5LzVhZjhlNjY2YmM2ZjZkNWUzNmYyM2FlOA). If you want to save the cost, you can also buy some cheap 2X2 tiles from stores like walmart at the beginning, just to test the robot running on the tile.

![](https://2759048249-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-McUrjiqzDSh8JGRCdzp%2F-Miz9t0KC640cWgNxnCK%2F-MizAA7zw_h4aI_3kHqx%2FScreen%20Shot%202021-09-07%20at%2012.32.31%20AM.jpg?alt=media\&token=e5c8fdf9-2c95-4912-9128-39ad6c1fdd2c)

### Field Perimeter/Wall

You can buy the official perimeter from [Andymark](https://www.andymark.com/products/first-tech-challenge-perimeter-kit-b).&#x20;

![](https://2759048249-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-McUrjiqzDSh8JGRCdzp%2F-Miz9t0KC640cWgNxnCK%2F-MizAEydDGd4JVK0OdIG%2FScreen%20Shot%202021-09-07%20at%2012.32.38%20AM.jpg?alt=media\&token=4277295a-187a-4d8d-b6ee-25f8a3495a4c)

To save the cost, you may also DIY the perimeter following this [guide](https://www.firstinspires.org/sites/default/files/uploads/resource_library/ftc/low-cost-field-perimeter-guide.pdf). The DIY version costs about 100$, vs official version 645$

![](https://2759048249-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-McUrjiqzDSh8JGRCdzp%2F-Miz9t0KC640cWgNxnCK%2F-MizAHoJbbEdqPvn34KK%2FScreen%20Shot%202021-09-07%20at%2012.32.45%20AM.jpg?alt=media\&token=fbc928d2-b947-4a70-ac20-b76e7f920819)

Please note, game elements are required. The full field is not required. You could build and test your robot, and later go to another team's field to practice/iterate.&#x20;

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