Step 1: Make a 5 by 5 sqaure of TNT.
Step 2: Add 3 more blocks to each of the block you placed earlier.
Step 3: Fill it with more TNT.
Step 4 Make a roof like it's a TNT house with a flat roof.
Step 5: Make a line of TNT to the spot you want to set it off.
Step 6: BOOM!
Tip: Make the whole thing out of TNT.
