Step 7: Setting the webbing...
Perch your box spring precariously on the top of your bed. Don't let it squash you.
Place the three racheting straps perpendicular to the long sides of the bed, evenly spaced.
Tighten the straps so that they hang down a bit lower than you want the bed to be.
Ease your box spring onto the straps and even them out by using the rachets.
Throw the mattress on top of the box spring. I know that you are tempted to get on the bed. I advise against doing so until the stabilizing straps are in place.
Make any final adjustments to the height before adding the lengthwise webbing that stabilizes the sleeping platform. These are tied tightly from the head to the foot of the bed. Space them 1 to 1.5' from the edge of the mattress.
Enjoy your new tall bed and the extra floor space that a loft bed gives. I hope that my instructable serves you well.
Thanks for reading!