I'm just saying.
if you want high-end recipes they got to be valuable.
What is more valuable than a door/gate currently? (I'm not saying all doors and gates, the crappy ones can start around 50-70 - they won't hold an attack out for long and will decay fast).
The only thing is, you need a way to transfer ownership of permissions
5 - 25 | You can build walls, pre-made housing and such.
25 - 49 | You can build single houses and double houses from 25 - 49 (single house 4x4 - much like the Bamati Ply Roof, can be as long as it wants). (Double house is twice the width of a single house (much like a Pioneers Sheet Roof, can be as long as you want.)
50 - 89 | Housing materials get more advanced after 50-89 (You can get thrice houses etc. 12x12 - I imagine these would be 3 roofs, two surrounding the middle one. These two are similar to the Pioneers Sheet Roof. The middle roof are similar to Bamati Ply Roof except it fits the two surrounding it.)
90 - 99 | No idea.. I haven't gotten this many recipes yet :P.
100 | The awesome gates/doors are 100.
While I get the idea with these new house parts. All those Corner posts keeping the roof up should go. Instead objects such as walls, floors, roofs should be placeable on top of each other.