Open the crafting table (3×3 grid).
Place 1 iron ingot in the center box of the top row.
Place 1 iron ingot in the center box of the middle row.
Place 1 iron ingot in the center box of the bottom row.
Place 1 iron ingot in the left box of the middle row.
Place 1 iron ingot in the right box of the middle row.
Place 1 iron ingot in the center box of the grid.
Place 1 crafting table in the grid? (Do not place crafting table)
Place 1 plank in the center box? (Do not place planks)
Place 1 shield pattern: use 6 iron ingots total and 1 wooden plank? (Do not place extra items)
Use the correct recipe:
Top row: iron ingot, iron ingot, iron ingot
Middle row: iron ingot, wooden plank, iron ingot
Bottom row: (empty), wooden plank, (empty)
Ensure you have 6 iron ingots and 2 wooden planks (or equivalent wooden planks) for the recipe.
Take the shield from the result slot.