Obsidian takes a while to collect, and can only be broken with a diamond or netherite pickaxe. To make a nether portal, the first thing you will need to do is collect your obsidian. Here is the step-by-step pictorial guide you need to follow to make a nether portal in minecraft: Next, you need to activate the Nether Portal which can be accomplished by using flint and steel on the obsidian frame. This design will use 14 blocks of obsidian. The base of the nether portal should be 4 obsidian wide, and the sides of the nether portal should be 5 obsidian high. To make a nether portal you will need 14 obsidian to build the frame. How to make a Nether Portal with obsidian in hand?

The materials you will need in order to craft a nether portal are:

From lava lakes to firey mobs, there’s so much to avoid and defeat in this biome, but it's so worth the trip when you get the materials to make the portal. With so many amazing things to find and uncover, like the rare ancient debris buried amongst the lowest levels of the world, there’s bound to be a tremendous amount of danger. This hellish dimension has so much to discover, from hidden chests of treasures in Nether Fortresses and Bastions to five different biomes to explore. The Nether is one of two current dimensions accessed through portals in vanilla Minecraft.

How to make a portal