Use your tape measure to determine the width and height of the space that the door will ultimately cover.
Cut your steel pipe into four lengths, two of which will need to be 6 inches shorter than the width of the available space, and two of which will need to be 3 inches shorter than its height.
Attach the sections of pipe into the pipe corners and assemble them into a rectangular frame.
Set the frame into place and anchor it to the post of the wall to its left by using your gate hinges. Tighten the hinges into place using your socket wrench.
Measure the vertical and horizontal distance between the pipes of your door frame and cut a length of chain-link material to stretch across it.
Attach tension bands at the top, middle and bottom of each of the two vertical pipes in your door frame.
Connect the four corners of the chain-link sheet to the two top and bottom tension bands using your pliers.
Connect the middle tension bands to one another by stretching your two tension bars across both sides of the chain-link material.
Attach the gate latch to the right side of your door frame using its included hardware and your adjustable wrench to complete your MMA cage door.