To make Spruce Stairs in Minecraft, you have to place 1x Spruce Planks on the first row, 2x Spruce Planks on the 2nd row, and 3x Spruce Planks on the third row of the crafting table as shown in the picture below.Place the Spruce Planks in the exact position to get 4x Spruce Stairs.
Opening the crafting menu of the crafting table will bring the 3×3 crafting grid.
2. Add 6 Spruce Planks to the Crafting Grid
The Minecraft recipe for Spruce Stairs requires you to place 1 Birch Plank in the first box of the top row of the 3×3 crafting and 2 Spruce Planks in the first and second box of the second, and 3 Spruce Planks to fully cover the third row.
You will know that you are using the correct recipe as the crafting menu will show you 4 pieces of Spruce Stairs on the resulting side.
3. Move the Spruce Stairs to your inventory
By moving the Spruce Stairs to your inventory you perform the crafting process, so you have now made Spruce Stairs in Minecraft.