5 ms·

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 m

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.

amluto 3y ago
R31 exterior foam will rather outperform the WikiHouse blocks due to reduced thermal bridging. And you get a structure that is essentially immune to condensation damage, so you can skip the annoying interior vapor barrier and all the problems that it can cause all by itself.
echelon 3y ago
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.
dubcanada 3y ago
Frankly there is zero way to bet a stud wall with a bunch of CNC'd plywood. The key is most of the wall is not made of the stud, plywood requires the entire sqft or m2 to consist of plywood.
flavius29663 3y ago
In a stick built house you're paying a lot of labor. Material prices are not that much. For example, the material list for a 3 bedroom house is 130k. https://www.menards.com/main/building-materials/books-building-plans/home-plans/shop-all-home-projects/29524-turnberry-home-material-list/29524/p-3289655538689628-c-9919.htm https://www.menards.com/main/building-materials/books-buildi... Say the land is 130k in your region. You won't find 3b houses for less than 360k. If you're looking at not so cheap builders, it will be 500k. I think there's a revolution coming in the way we build houses, it must be - because costs are through the roof. It could be either in the form of prefabricated walls, like we have now trusses, or lego bricks like the OP, or something.
- turtlebits 3y ago
  For stick frame houses, around 10-15% of the cost is framing. Finishes account for the bulk of the cost.
  - flavius29663 3y ago
    well yeah, because everything is so bespoke: plumbing, electrical, windows, doors, drywall, trimming. I hope to see some kind of evolution of housing where these things are not installed by skilled labor somehow.
jacknews 3y ago
It's the UK, so everything is twice as expensive anyway.
- shermantanktop 3y ago
  Not the Bourbon Creams at Waitrose. 90p? What a steal.
  - mavhc 3y ago
    Custard Creams are 65p at Tesco, bargain of the decade

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.

amluto 3y ago

R31 exterior foam will rather outperform the WikiHouse blocks due to reduced thermal bridging. And you get a structure that is essentially immune to condensation damage, so you can skip the annoying interior vapor barrier and all the problems that it can cause all by itself.

echelon 3y ago

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.

dubcanada 3y ago

Frankly there is zero way to bet a stud wall with a bunch of CNC'd plywood. The key is most of the wall is not made of the stud, plywood requires the entire sqft or m2 to consist of plywood.

flavius29663 3y ago

In a stick built house you're paying a lot of labor. Material prices are not that much. For example, the material list for a 3 bedroom house is 130k. https://www.menards.com/main/building-materials/books-building-plans/home-plans/shop-all-home-projects/29524-turnberry-home-material-list/29524/p-3289655538689628-c-9919.htm https://www.menards.com/main/building-materials/books-buildi... Say the land is 130k in your region. You won't find 3b houses for less than 360k. If you're looking at not so cheap builders, it will be 500k. I think there's a revolution coming in the way we build houses, it must be - because costs are through the roof. It could be either in the form of prefabricated walls, like we have now trusses, or lego bricks like the OP, or something.

turtlebits 3y ago
For stick frame houses, around 10-15% of the cost is framing. Finishes account for the bulk of the cost.
- flavius29663 3y ago
  well yeah, because everything is so bespoke: plumbing, electrical, windows, doors, drywall, trimming. I hope to see some kind of evolution of housing where these things are not installed by skilled labor somehow.

jacknews 3y ago

It's the UK, so everything is twice as expensive anyway.

shermantanktop 3y ago
Not the Bourbon Creams at Waitrose. 90p? What a steal.
- mavhc 3y ago
  Custard Creams are 65p at Tesco, bargain of the decade