Walls are important to keep troops at a distance to other buildings. The number of available pieces of walls increases with the Town Hall level.
| Level | Cost | Hitpoints | Total Cost | Build XP | Destroy XP | |
|---|---|---|---|---|---|---|
 |
1 | 200 |
3,600 |
200 |
25 | |
 |
2 | 1,000 |
6,000 |
1,200 |
50 | |
 |
3 | 5,000 |
8,400 |
6,200 |
75 | |
 |
4 | 10,000 |
10,800 |
16,200 |
100 | |
 |
5 | 30,000 |
16,800 |
46,200 |
||
 |
6 | 75,000 |
28,800 |
121,200 |
||
 |
7 | 200,000 |
30,000 |
321,200 |
||
 |
8 | 500,000 |
36,000 |
821,200 |
||
 |
9 | 1,000,000 |
42,000 |
1,821,200 |
||
 |
10 | 3,000,000 |
57,600 |
4,821,200 |
||
 |
11 | 4,000,000 |
64,800 |
8,821,200 |
Each Lv.11 Wall block costs 8,821,200 Coins. Multiply by 250, and you get 2,205,300,000 Coins. 560 gems give 8,000,000 Coins, so it would take ~154,371 gems to purchase the required Coins, assuming zero waste. Using bulk purchases, this would currently cost $11,675.