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How To Build a Sofa Bed with Joana Bianchi

This piece of furniture serves a dual purpose — providing a comfortable place to sit during the day and an extra bed when entertaining overnight guests. DIYer Joana will take you through the Simpson Strong-Tie hardware she used and the process of building this sofa bed.

I’d been very unhappy with my previous sofa for a while. It was too squishy every time we sat on it and it was uncomfortable. Also, every time my brother came to visit, I felt bad about not having an extra bed for him. Meanwhile, I was challenged by Simpson Strong-Tie to come up with some simple DIY projects that required little more than just their fastening screws. And that’s when the idea of building a daybed hit me!

Completed DIY Sofa Bed
Completed DIY Sofa Bed

I have to say, planning was the most important part of this DIY build. I was really scared it would look too much like a bed, so decided to go with a Japandi inspired design style. This aesthetic is a mixture of Japanese and Scandinavian design creating a minimal style, with the idea of blurring the line between bed and sofa. I also wanted to incorporate the side table into the build, to make it all look very clean.

Plywood for the DIY Sofa Bed
Plywood for the DIY Sofa Bed

Finally, I put together a cut list to make sure I used every little piece of plywood that I bought (because lumber isn’t cheap). I had the lumber cut at Home Depot, which, trust me, saved me a few hours!

Glued plywood for the DIY Sofa Bed
Glued plywood for the DIY Sofa Bed

I started by gluing two panels of the same size for each leg (I did three legs total). For the Mattress base and the back, I cut some extra strips of plywood and glued themto the long panels  to form a trim and create the illusion that these panels also had two layers of ply.

Sofa Bed Legs using Simpson Strong-Tie Finish Trim screws
Sofa Bed Legs using Simpson Strong-Tie Finish Trim screws

Finally I placed the panels over the legs and used Simpson Strong-Tie Finish Trim screws to attach it. These screws leave such tiny holes, I didn’t need to cover them (I dare you to find them in the picture!).

Simpson Strong-Tie Gusset angle and L bracket
Simpson Strong-Tie Gusset angle and L bracket

To secure the backing panel, I used gusset angles and an L bracket (because it is against the wall, this was sturdy enough).

DIY Sofa Bed with mattress
DIY Sofa Bed with mattress

Finally I protected everything with Danish oil in Medium Walnut and it was ready for the mattress!

Joana Bianchi and her dog sitting on the DIY sofa bed
Joana Bianchi and her dog sitting on the DIY sofa bed

Honestly I think I’ll never be able to have a normal sofa again. This one is SO comfortable! I love just sitting there and I have already fallen asleep there multiple times at night – It’s dangerous. And to think it cost me less than $200. I swear I won’t have a bad sofa again in my life.

What about you, are you ready to build your sofa now?

 

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