The stain we used was Naturhaus Harmonic, which will soon be available online. The ingredients are: beeswax, carnauba wax, shellac, and a cosmetic emulsifier. It had a very sweet smell for the first two days.
Other options for stains are AFM Safecoat WaterShield or Ecos.
The glue used was Titebond.
|Sketch of my sofa|
Metal brackets reinforce the frame so that the side piece can be leaned on. The inspiration picture had low sides that would not be as comfy; I didn't think I'd be able to curl up on that sofa.
The dimensions are 28 in depth (standard sofa depth), height from seat 16 in (fairly standard), length 5 feet (length was made to fit in my tiny house).
Metal Brackets 200
Labour 40 hours
Foam 804 (from a local shop. Much cheaper on Amazon)
Total was around $3500.
This is expensive, even for a chemical-free sofa.
Another option is to buy a sofa from a company that makes non-toxic upholstered furniture. I have looked into and compared these companies in this post.