Build out your frame, create a base layer of pea gravel. Next place peg boards, cover those with landscape fabric. Then place your soil and finally the sod, pat down and water.
For my second outdoor dog potty, I decided to mix up the look at little bit and make it a half real grass / half rocks area.
I replaced the wood frame with Vigoro Rubber Garden Edging pieces. No power tools needed!
When planning out your specs, I’d recommend sticking with measurements in multiples of 4. Most of the supplies out there (like the peg boards, edging and sod are 4 ft something.) This will just make measuring and buying so much easier on your end.
Watering your grass is super important! At the beginning, I would suggest watering a couple of times a day. After a week or so, just make sure it’s watered once per day