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How to Build a Sofa/Couch

515K views 92 replies 46 participants last post by  dakremer  
#1 ·
Arm Rests

DISCLAIMER: Before I start this blog, I want to make sure everyone knows that I am NOT a professional sofa/furniture builder. I just took on this project because 1) I needed a sofa and 2) because I thought it'd be really fun and satisfying if I built my own sofa. This is all my own design, and besides looking at a few pics on the internet, this is all my OWN method of doing it. That being said - for any of you professional sofa builders out there, I am sorry if I'm not doing it "correctly," but this is just how I am doing it, and thought I'd share with everyone. (I did do a little book reading, and studying before starting, so I do know a tiny bit about it).

I am not going to get EXTREMELY detailed on how I did this but hopefully the pictures will show enough, and if you have any questions, just ask and I'd be happy to try and answer you.

All wood is pine. I know this is not IDEAL for sofas (its nice to have hardwood in some of the more structural parts, but this sofa will not have heavy traffic, and I want it to be light as possible).

ARM RESTS:

The first step is designing the sofa, obviously. You must have a mental picture, or drawing, or something of what you want the sofa to look like before you start building the wooden frame. Remember there are going to be a lot of layers of foam and fabric on top of the wood, so if you have an idea of the size after completion - remember to build the wooden frame a little smaller. I'm more of a build first, design as I go type of guy - haha..so I had an overall idea of what I wanted it to look like, and then just went from there.

For the arm rests you want to make sure that everything is nice and tight and square, etc, etc. I used a Kreg Jig and glue for all of my joints. The frame doesn't have to be ROCK SOLID, as there will be fabric stapled to it holding it in place. Try and imagine where your arm will be placed and where the platform of the sofa and back of the sofa will attach to it. Make sure you have wood in the correct spots so when the time comes to join all the pieces together, you have part of the frame to attach it to. You can see on the arm rest frame below that I have a simple cube for the arm rests, and 2) 1×4's on the inside of the arm rest - this is where the platform will attach to the arm rest…..
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Next is putting the burlap on. It doesnt have to look too pretty at this point. Stretch the burlap as tight as you can get it all over the wood frame, and attach with staples. This will give the foam a "solid" base to lay on, and give the arm rest a little more strength…..
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Next the foam padding goes on. I did not show the pic of this, but I only have about a 1.5 inch thick of rubber foam on the top of the arm rest. After the foam is on, wrap the entire thing with Dacron (which is the white fluffy stuff shown). I added two layers of it, giving the arm rest a little more padding and a tiny bit more strength to the structure. Dacron will give the sofa that fluffy look and also blocks the fabric from getting snagged on the frame. Make sure this i stretched tight and attached with staples. Not many staples are needed attaching the Dacron, as the sofa fabric will hold it in place. Also, where the arm rest attaches to the platform of the sofa, you want to make sure you do NOT put the Dacron there. It will get in the way of attaching the two pieces snuggly together. You will not see this part once it is put together so there is no need of putting it there
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I did not show pictures of sewing - which is definitely a new experience to me. I think that took the longest out of everything because I had to figure out how to run a sewing machine (first time). I then had to research the correct stitch for it (you need a zig zag type stitch that allows for stretching, as you will need to stretch the fabric over the arm rest and make it tight). For cutting out the fabric - i used the measurements of the wooden frame itself. Once sewed, all that padding etc, will fill the fabric up making it nice and tight and wrinkle free.
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Now you have the finished arm rest. Now you only have to make the other one, then start working on the next part - the platform.

In part TWO I will show how to (or atleast how I did it) put the springs for the platform in. This is the hardest and most time consuming part!!! I will use the old "8-way hand tied spring" method which is BY FAR the hardest and BEST way of doing it. If buying a new sofa - always ask if its "8-way hand tied". If its not, its not a very high quality sofa. (most arent these days, by the way). Here's a sneak preview of the platform. Hopefully I'll have that blog (part 2) up shortly…...
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Thanks for reading. Any questions let me know.
 
#2 ·
Way to go! Who says you have to buy your furniture. If you're a woodworker, you can make it. And you appreciate it more if you make it yourself!!!
That is a nice upholstery job on the arms. And you are learning sewing too! Great.
 
#10 ·
Springs in the platform

Installing the springs is almost complete. I am choosing to install coil springs that are all hand tied together. This method is called "8-way hand tied." The benefit of this method is that it is stronger, it lasts way longer, and is more comfortable than sinuous springs. Sinuous springs (or "S" springs) is what most furniture companies use today. They do the job, but like most things these days, they aren't made to last. They also save furniture companies tons of time/money, because it is much easier/faster to install - unfortunately this means a lower quality sofa for the consumer. Installing the "8-way hand tied" springs takes probably 5X the time and is more costly for materials. Thats why if you buy a sofa that is truly "8-way hand tied" by a certified installer, it costs much more…...

In the first picture below, you can see that I've attached the platform to the arm rests. I did this by using 16 screws per side, all predrilled so the frame does not split on me (after all its just pine). Prior to attaching the platform to the arm rests, I laid out my springs to see where I needed to place my "jute webbing" on the underside of the sofa. The jute webbing is stapled to the bottom and stretched very tightly in a weave pattern. This is what the springs sit on. I hope you can see this from the 2nd picture down.

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I will probably add some more jute webbing once the springs are completely tied, to give it some more strength. In the

In this next picture you can see I have started hand tying the springs. Can you guess why its called "8-way hand tied?" Once I am done, each spring will be attached to the frame 8 times, from 8 different directions. On top of that, each spring will be attached to every springs immediately surrounding it. In the picture below, i have gotten as far as "4-way hand tied." I still need to tie them off in both diagonal ways. Once it is all tied, if you put pressure on one coil, every surrounding coil helps in taking the load. This makes for a VERY strong system to hold the weight of the people sitting on it. It also puts less pressure on the frame since more springs are absorbing the weight. With sinuous springs, each spring is attached to the frame in the front and back, and thats it - that puts a lot of pressure on the frame - which is why most of them don't last very long.
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Getting the springs just this far almost took 2-3 hours. And my fingers are killing me from running the Jute twine through each one of those!!! It will take probably another 2 hours to finish it.
Well thats all for now. For the next one I might show how to finish off the platform. Then all that is left is the back rest and the final piece of fabric that goes on the back of the sofa…then of course legs, and a dust cover for the bottom of the sofa. Thanks for reading!
 
#24 ·
Finished springs, starting on the Back Rest

So far I'm done with the "8-way hand tied springs" as you can see from the pics below. I think I tied over 300 knots for the entire thing. It must have taken me like 5 hours just for the springs (if not more). My fingers are killing me - jute twine is not very forgiving. Anyways I tested it out and it is VERY sturdy. It seems to be working exactly like its supposed to. I then constructed the back rest. This was the part that I was least confident about. Not sure if the way I'm doing it is going to suffice - what do you think? I might make changes - but I think when I wrap it in all the layers and staple all the fabric to it, and attach it to the arm rests and platform, It might be alright. I also started sewing the fabric for the front of the sofa and wanted to get the platform completely finished, but of course I ran out of staples, and being a Sunday night, no place was open to go buy more. I've used TONS of staples so far, and theres plenty more coming. Thanks for reading!

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#50 ·
platform finished...almost there!!!

I am sorry I do not have a lot of time before going to work, so I will not be able to write a whole bunch. I finished the platform today. All that is left is the backrest. I will hopefully have that finished tomorrow, and then all that is left is the pillows, and legs. Here are some pictures of what it looks like so far. sorry this has to be so short, but I am running out of time…if you have any questions, just ask me, otherwise maybe I can post more about it later on - i just wanted to get something posted because I wont have time to do it later tonight. I hope everyone is enjoying and have a great day!

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#65 ·
Sofa upholstery complete, legs next....

Hey LJ's. So I have the upholstery of the sofa frame complete. The only thing left as far as upholstery, is the seat cushion and pillows!! My next step is making the legs. This is where I need some advice from you guys. I was planning on making some legs that are really big and bulky, probably either black or dark shade of brown (like walnut), but I was wondering what you guys think? I was also thinking about only doing 1 long seat cushion. I kind of like the fact of not having any cracks to lose keys in :) But again, was wondering what you guys think? The pictures are below, and again if you have any questions just let me know and I'd be happy to answer them. Thanks a lot!! My next post will be of the finished sofa under Projects. Thanks for all the support!!

Sorry, I can't figure out a way to make the picture smaller so you can see the whole thing!! Photobucket sucks. Anyways you can click on the picture and it'll take you to the full size pic. Thanks!!

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#84 ·
Seat cushions and the home stretch



Sorry it's been a while for people following this blog. The sofa is ALMOST done. I just sewed the seat cushions. First time doing this ever. The first one turned out pretty poorly, but my second one turned out great I think. I will probably redo the first one. The only thing left to do is sew the back cushions (right now there are just bed pillows there - which is surprisingly comfortable). I also have to fabric the bottom and finish it off to keep the dust out of the inside framework of the sofa. I also believe I'll make bigger legs as you can barely see the ones I made. Overall I am very pleased with this sofa - it's the first one I've ever done - with no formal training or anything. Just read some books and tried to learn as I go. Enjoy and if you haven't seen this blog series feel free to go back to the previous blogs in this series to see now I built it!! Any comments or criticism welcome! Thanks