why not????
I did raised beds lined with cardboard....first not tall in some of them. But the ones that I actually broke thru the cardboard did the best.....to
cause some of my plants did not penetrate thru the cardboard and had to be watered more and were weaker....
Cardboard between all the beds too.....
So from now on I make sure where I plant each plant is able to go thru to the real dirt...
only less than half my 20 plus raised beds are 7 ft by 3 feet or so.. most are like 4 by 4 width and length....
You defintely want to be able to reach across them at least half way.....
Two years before I did straw bales enclosed garden... did very well only did 4 areas or so
Just my experiences

Do you have gophers in your area? If so it is very important to put hardware cloth (wire) under your beds.NOT chicken wire! Too flimsy!
What we have done is dig in or fork in (we have a 2 week window spring and fall when it's not clay muck or like concrete), add composted horse manure (from freecycle) water that in, place your frame + hardware cloth, add some soil (we bought ours from several places, but ended up the least expensive and organic was from the dump), watered that in some more, then filled the box and plant.
Each spring I add some of my own compost and till in with my little mini tiller. Every few years I do need to get a truck load to top things off.
You said you were planting up against your house? If you don't have access from both sides of the bed, you probably don't want to go 4' deep (that is if you want to not walk in your beds)
Have fun and happy gardening! Nancy

how can you tell a mole from gopher? I read that moles are solitary....
I did hardware cloth under a few of my raised beds. Cant remember which ones now...
But I did under all my strawbaled enclosed raised beds back in 2012. cause I was told about grounhogs and we saw at least one
.thanks

Thanks for the help. I was just going to put dirt in the bed on top of the yard dirt. I made a 3'x12'x10" raised bed forms today. havent set it up yet but will soon.

So this garden spot will get sun starting at about 8:00am until 2 pm. Is that enough sun for a garden?

I have a bed on the west side of my house. Those plants ONLY get sun after noon, and they do great. My winter peas do tend to lean west, but in the summer, everyone seems as happy as in my beds that get full sun. Tomatoes, basil, several kinds of squash, peppers. Of course, in HZ10, full sun can be a killer for plants that don't need it. I have not tried my eggplant there, but I will this year. I will keep my melons in my full-sun bed, as melons, in my humble opinion, really need a lot of it. I've never tried melons in half-sun, but I've heard they won't do as well.

Gophers create big mounds of soil where they come up. They go quite deep. Moles (I think) leave a mounded trail along the surface.

HunterDaddy, I have some funky raised beds that I really had no choice in where they went because their main purpose is actually to stop a hill from sliding into my house. Parts of the beds get sun only from sunrise until about 2-3 in the afternoon and do just fine. I seem to remember seeing you were from Texas (before the changeover), and am thinking it might actually be a positive thing that you don't get the direct, hot afternoon sun. The veggies I had in my "morning" beds did a lot less afternoon wilting and didn't have the sunscald that some did in other beds. It could end up being a plus for you.

The front of my house faces east, and none of the plants that require full sun do very well in the front. Those that can stand partial shade do better.

My guess is that you would get some harvest, and that might make you happy, but if you have other options, might be better to invest the money for the raised bed somewhere that gets more sun.

One other point to note - the front beds take much longer to dry out after a rain - again, this might be an advantage or a disadvantage, depending on what you plant, and your drainage.

The location of the sun sounds good to me. My garden sits in a similar position. I just wanted to add that raised beds need more water because the soil dries out faster in hot temperatures. Also, if the yard slopes away from the house, your water will presumably run off as well (I assume the landscaping is designed for this). So be sure to water with some frequency.