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Wikihouse: Open-Source Houses

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21–30 of 223 posts

Re: Wikihouse: Open-Source Houses

#21
post #17

Earlier quoted context omitted.

There's a lesson here: Lay your foundation with strong types.

What type are you supposed to use to represent total cost when spending infinite money for 0 days?

It seems the Romans took their concrete type secrets to the grave.

Re: Wikihouse: Open-Source Houses

#22
post #2

Seems pretty expensive to make everything out of pure plywood. Does anyone have a sense of how cost compares to 2x4's plus drywall? I assume either construction method will need exterior cladding and insulation.

My rough estimate is around $4.75/sf for a high performance wall (drywall+2x6+osb+exterior foam ~ R31). They show £230/m2, so this product would be almost 7x more expensive.

Re: Wikihouse: Open-Source Houses

#24
There is a pretty cool project for a complete open source village: -https://www.opensourceecology.org/

Supposed to be all the machines you need to supply a whole village, made from low cost basic materials.

I think it’s from 2014 not sure if it’s still being worked on or if anyone actually has used the blueprints in a real world scenario.

Re: Wikihouse: Open-Source Houses

#26
post #15

Hm I’d like a house where everything is as easy to assemble / repair / replace as IKEA furniture, and where you can run cables, and install builtins

Modern glulam buildings (or if you are in EU gablok could work) or masonry, pluggable plumbing and electrical (see Swedish prefabs, they use a pluggable electrical so you plug one wall into the other, wiring is embedded at factory), metal SIPs roofing. You can get pretty close to this with current materials.

Re: Wikihouse: Open-Source Houses

#28

I love the idea of this. My wife and I watch a decent amount of Grand Designs are there are a few houses that experiment with the concept of cnc-cut block based assembly. I intend to build something like it someday (in the US, so it might be harder to find a manufacturer). One thing that strikes me as at odds is that they tout their reusability as well as the customization aspect of the block. It’s cnc cut so they’re…

My guess is by "reusable" the mean "reconfigurable", as you can presumably reuse at least some of the blocks when rebuilding or changing your house.

Re: Wikihouse: Open-Source Houses

#29
post #2

Seems pretty expensive to make everything out of pure plywood. Does anyone have a sense of how cost compares to 2x4's plus drywall? I assume either construction method will need exterior cladding and insulation.

My rough estimate is around $4.75/sf for a high performance wall (drywall+2x6+osb+exterior foam ~ R31). They show £230/m2, so this product would be almost 7x more expensive.

Margin.

If they save time and provide convenience or reassurance, then they'll provide value for some people.

It remains to be seen what the demand will look like, especially given the heavily regulated market.

edit: the "Fit out & finishes" drop down really brings the costs up. I'm not so sure about this product after all.

Re: Wikihouse: Open-Source Houses

#30
post #18
post #2

Seems pretty expensive to make everything out of pure plywood. Does anyone have a sense of how cost compares to 2x4's plus drywall? I assume either construction method will need exterior cladding and insulation.

Isn't plywood cheaper than solid wood?

A 1x6 which is probably thicker is usually around $4-5 a 3/4 plywood at 4x8 is $51 ish, so 8*1x6 ($4.5 at 8ft length) = $36, and $51 for plywood. So no, plywood is not cheaper at apples to apples comparison. If you chop the thickness down you can get it to be comparable or cheaper. But plywood is stronger then a bunch of 1x6.
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