Calling All Carpenters: Need Help Building A Chair

I'm not sure if we have any carpenters in the community but I was looking for some help with building a chair. I'm a rather large man and I have never set in a computer chair that felt comfortable unless it was some extremely expensive chair that I could never afford. So I got to thinking that since I have access to piles of nice thick heavy wood out back, my dad's adding onto his garage, I thought now would be my chance to finally get around to building a nice solid comfortable chair to use at my computer. The problem however is that I have never built one before so I'm not sure where to start.
 
As I mentioned I'm a big guy so the chair does have to be built sturdy. I really don't care about how it looks as that can be changed later, but more so on the stability and comfort of the design. Before I go in wasting wood and building something that implodes the moment a fly lands on the thing, let alone my fat ass, I wanted to look at some videos of how other people build chairs to get a better understanding of the process- but I couldn't find any. So I was hoping that some one in the community would know of some web sites that have videos like these orif you have any experience with making chairs like that if you could give me some pointers on how I should go about doing it.
 
I was thinking of something simple like these photo's below, but I wasn't sure how stable they would be to sit on. 

 

Gallery

Really? No one?

find cushions you feel comfortable with 
build a support for them 
other than that, dunno 
remember cross beams 

Asking a gaming community how to build a chair.....
 
 
EDIT: I actually looked for a video using the power of the internets, but alas I found nothing of use. Unless you want to build a beanbag chair.

                                                                                                                             "I believe I can help with that"
 
 

Step 1. Go to IKEA. 
Step 2. ? 
Step 3. PROFIT

" Asking a gaming community how to build a chair.....  

"Build a Chair" surprisingly returns results on YouTube. Whoda thunk it?

" " Build a Chair" surprisingly returns results on YouTube. Whoda thunk it? "

" @crusader8463:   I'd start by going shopping for simple wooden chairs in furniture stores. You don't have to buy them, just identify what you like, and what looks feasible.  Then inspect it's construction. See how things are connected, the measurements of the various parts. Consider why they put the pieces in the places that they put them.   Cut yourself the pieces, replicate the construction, sand and stain, Then go to a homegoods for an appropriate cushion to attach.   Then throw it away when you realize what a shitty chair you've made, and go back to the furniture store to just buy a real chair because if you don't know how to make a chair, I'm going to guess that your first attempts will suck, just like 90% of people's first attempt at crafting something they don't know how to make. "

Sigh...

Well, I'm a scenic carpenter, so I guess I can give a little advice.
1)  Be safe. Wear safety glasses when cutting. Don't be a douche.
2)  Measure twice, cut once. You can try out a simple drafting software if you want, like google sketchup.
3)  For your joints, you've got a few options
-  Pocket screws are pretty good. You can buy a pocket screw jig at a home improvement store. It makes a pretty strong joint. Keep in mind, though, that a screw has far more PULL strength than it does SHEAR strength. This is why you can't really pull a screw out with a hammer but you can break it off quite easily. It's just the opposite with nails and staples. Keep this in mind when deciding how to join your pieces and where the forces are being applied. Its not a great idea to have a lot of downward pressure being applied to horizontal screw. That being said, unless you are really fat, it might not be a problem.
-  Dowels and wood glue. Screw two holes on the inside of both sides of the joint (be precise), squirt some glue in the holes, stick in a dowel, and CLAMP.
- Just screw straight through the wood and fill it with something later. If you plan on staining it, make sure you get a stainable filler.
4) Sand all the pieces, you don't want to get a splinter every time you sit.
5) Uh... ta da?
 
Good luck!

" Step 1. Go to IKEA. Step 2. ? Step 3. PROFIT "

Simple looking chairs are very deceiving. The ones on the left and right in your first post are more than likely using mortise and tenon joints (and rabbet joints on the left one). Mortise and tenon are among the strongest of joints but you HAVE to be precise when cutting and fitting them.
 
There's a site with step by step videos on how to build something similar to what you're looking for. You probably don't want to jump into this high level project just yet, but it should give you a good idea of how to put this thing together.

Thread cleaned. 
Stay on topic, don't spam and be nice - anyone who has just had a post deleted will have a close eye kept on them and will be given a warning if this sort of behaviour continues.

Can anyone on this fucking site simply HELP someone without making lame little sarcastic comments about everything? 
 
In regards to him posting this in a video game forum, IT'S THE OFF-TOPIC! It's not like he posted this shit in the Zelda forum. If someone can make an entire thread about hot dog toppings, why can't he ask for help to get a chair built? 

The designs you've got there will do ok if that's the kind of thing you want. They're very simple to make really. Just measure the wood out and join them together with simple mortice & tennon joints, if you haven't got the power tools for it a handsaw and mortice chisel will work fine, as long as you are acurate. Power tools will be much easier if you've got them. I spent a whole year at college using just hand tools and it was a pain in the ass trying to get a really tight and strait fitting tennon.
 
You'll wanna make sure you plane and sand the wood too, or you'll be in splinter city, especialy as it sounds like you're using just structural timber which is usualy pretty rough. Then make sure you get a good seal on it, find a good cusion and wahbam, there it is.
 
Good luck, too. Once you make something practical and usefull such as a sturdy chair that's taken you a couple days you'll feel a fantastic sense of accomplishment. Until it falls to pieces.

" @Scooper:  Ya I was thinking of going with an open M&T joint, but what do I use to keep it together? I would be afraid of the screw/nail causing a crack in the wood to form and ruin the structural integrity of that beam of wood since wouldn't they be the ones supporting most of the weight? "

I remodeled houses for about 5 years, and one time I built a bench. 
 
Building a chair isn't easy, remember that scene in The Patriot where Mel Gibson builds a chair?  I imagine it really is that tedious and frustrating and that a simple misstep can ruin your chair (also, don't be racist). 
 
Home Depot has some Home Improvement hardbound books in some of there isles, you can find out how to build a bench in the garden section of one of those books.  While a bench won't be very comfortable for long periods of sitting, the basic framework should help you out.  Once you have a comfy frame, laying some padding and stapling fabric over it shouldn't be to hard. 
 
That being said, if you aren't a carpenter building a chair will be difficult... there is a reason all those chairs you like are so expensive.