Marlene, "Hi", If you've got the will then you can do anything,and I mean that. OK, lets see what we can do together, are you ready, lets GO... Now your carport has four sides,we shall call each side a name, side by the house,(house side),at the back of the carport away from the road,(end side).the side near the road we call (front side) you have one side left lets call it ( outside). Now because you are a woman ( not being funny) we will make our walls easy for you to lift. But first you will need a base plate ( 6"x2")this plate must be fixed to the floor between the carport posts you should have two of them I want you to draw a pencel line down the wall ( house side) Look at the carport post to see where it joins the roof. (on the inside ) When you stand in the middle of the carport you should see the three main timbers ) are you still with me.? follow that point to the house side now draw your line down to the floor.( do this at both ends of the carport.( Front side - end side) CONTROL the lenght between the two posts then make sure the size is the same between your pencel lines ( house side) fix the base plate to the floor the inside of the plate should be on the outside of the line Now your baseplate will be in between the posts. on three sides.. We will now start to make the wall panels.. Each panel will be 4'wide x the hight between the top of the baseplate and underside of the roof beam let's call that XP. All the timber you will be working with will be 6"x2". Cut two timbers 4'(top and bottom), cut 4 timbers to the XP size less the thickness of 4" ( the thickness of the top/bottom rail), nail together making sure your centers are the same, find the center between the carport posts mark the floor with a pencel line on the three sides ( important as you will see later) we both know nothing is perfect so take a rail 4'long ( this is a model of your panel) mark the center of the rail, place the rail on the baseplate then mark one end ( right side) move your rail along to the new line, again mark the baseplate (right side) and so on till you come to the post now you will have the size of the last panel you have to make."ok" See how it works out you may have to start with a panel on the right side of the center line. now do that on the otherside on the center line. and do the same on the other two sides. Make your panels like I said, then lay them out on the ground out side by there they will go, this way you can see where you will want the window(s) Now you have a size for the window, dont make them just buy them save a lot of problems they must be less than 4' wide to fit in to the panel, dont forget to put a rail top and bottom of the window frame then cut your XP rails to fit. Fix your panels in place screw/nail the top to the beam and the bottom to the baseplate. You have done all that... good. now we can fix the inside panels.cut the panels to the XP size less 1" nothing is level. place the plywood offset about 1" to one side, start from the center as before and work away from the center panel left then right the last frame should be smaller than the others so cut your plywood to fit. If the hight of the plywood is smaller than the XP you will have to make a joint ( timber joint I mean, you can smoke the other joint after). "important" dont put two joints together, one panel has one on the top. the other on the bottom Almost forgot.... between the plywood and the frame you must have a vapor seal ( plastic sheet) to stop damp coming through, put this on before you fix the plywood. You should now have a room in the carport made of plywood. Outside now. fill the space between your XP timbers with fibreglass the more you have the better it is, again fit plastic sheeting over the out side of the XP timbers, leave it short on the bottom and short on the top for the fibreglass for air to pass leave about 2" top/bottom you start with the "cladding"?? is that the word you use ?? fix some PVC strip ( bricklayers use it over windows its about 6"- 8" wide, nail half on the XP timbers and let the rest hang over the foundation when you fix the first plank push it down hard against the PVC (when it rains the water will run off) There are lots of little things to do, but you will think about them BEFORE you start. If you dont understand the way I explained ( it will be the way I wrote it ) You have my e-mail send me a fax number so I can give you a layout of what I have wrote.