No edit summary
(40 intermediate revisions by 8 users not shown)
Line 1: Line 1:
= Video and PDF =
[[Category:Hexayurt project]]


* [http://blip.tv/play/AYGf3CMC Video (English)]
'''There's a substantial amount of text at the [[Talk:Hexayurt_Plywood|discussion page]]. It will be restored gradually as soon as the outline is clear. Use it now if you wish.''' [[User:LucasG|LucasG]] 07:49, 24 July 2011 (PDT)
* [http://www.appropedia.org/images/3/39/Plywood_Hexayurt_Construction_Details.PDF Construction details]
* [http://www.overstream.net/view.php?oid=uzu8epmcasi5 Video (Spanish subtitles)]


<embed src="http://blip.tv/play/AYGf3CMC" type="application/x-shockwave-flash" width="480" height="390" allowscriptaccess="always" allowfullscreen="true"></embed> ((I don't know how to embed video in mediawiki, help appreciated))
Plywood hexayurt is the catch-all term being used for the family of frameless hexayurts constructed out of plywood or similar materials. The most notable alternative is OSB. They are not to be confused with the [[Timber Frame Hexayurt]]. Plywood Hexayurts lack any form internal framing.
[[File:Osb_hexayurt.jpg|thumb|upright=3|alt=Hexayurt made from OSB at Small is Festival 2010.|OSB Hexayurt.]]


= Subtitles =
== Plywood ==


In the final third of the video, the timing is not perfect and there are words I (LucasG) can't hear too well. Also, the English is translated back from the Spanish (reverse engineered so to speak), so it's not exacly as the original.
[[File:Plywoodhexayurtsketchupwithmods.png|thumb|upright=2|alt=Sketch up models of Plywood Hexayurt.|Sketch up models of Plywood Hexayurt showing modifications.]]This is the primary hexayurt solution for disaster relief situations due to the materials used and ease of constructions. For disasters in extreme cold, use isulation board and the construction instruction in [[Hexayurt Playa]]


But this is useable. So either create an account in overstream.net and import the .srt file, or ask me to do it for you.
Hexayurts are basically made of panels and connectors. The design has been modified extensively because of issues that arise from constructing out of plywood with no frame. The concerns of Water-proofing, insect-proofing, fixing to the ground and portability are different from that of the more common polyiso hexayurt.


And of course, please feel free to add other languages below. And links to the translated videos above. Thank you!
If the panels are from wood, then:
* the connectors need to be stronger than with lighter panels.
* fixing the hexayurt to the ground is probably needed only if there's risk of earthquakes or landslides.
* water-proofing and insect-proofing need to be considered, asking the local experts.
* portability will need a group of synchronised carriers.


== English ==
=== Modifications ===
1
* Screwing directly into plywood is not recommended and due the angles involved it is sometimes impossible. Therefore all joints are made using wooden blocks.
00:00:00,000 --> 00:00:08,713
* The two side of the roof triangles overlap so that they may be screwed together. Also the roof panels are lapped so that they sit on top of one of the neighbouring pieces but under the other.
This is the Hexayurt that we built at the Engineers Without Borders annual gathering and Practical Action camo.
* Because of these overlaps the tips of the triangle must be cut.
* This overlap in the roof causes the roof’s foot print to be smaller than in the basic design. Also, to water to run off the roof properly, the roof must overhang.  So the walls must be connected into a smaller hexagon to be within the radius of the roof. This is achieved by letting one wall protrude when making the joint.
* To prevent the roof clashing with the protruding wall one corner of the wall sheet is cut. This modification is called the “Sri Lankan corner”.


2
== How to ==
00:00:09,682 --> 00:00:14,625
If unclear refer to the Sketchup model or videos in the links section.
Here you see the details of construction of a plywood hexayurt.


3
=== Requirements ===
00:00:14,625 --> 00:00:23,353
It's a 150 degrees angle cut in a piece of 2 x 4 and screwed from the outside.


4
==== People ====
00:00:23,453 --> 00:00:33,262
Here's the other size of block which we use, look down here, it's 120 degrees.  It holds walls together.


5
2 all constructions stages except ‘Stage 4: lifting the roof’
00:00:33,726 --> 00:00:46,757
And let's go outside.  Outside there's a 120 degrees block which joins the wall with the roof.


6
≈18 for Stage 3: lifting the roof. Number depends on strength of the people and material used. Plywood is approximately 40kg a sheet and OSB is 20kg a sheet. So the roof can weigh 240kg or 120kg. You want a maximum of 15-20kg per person. Lasts roughly 5 minutes
00:00:46,787 --> 00:00:49,787
And there are 150 blocks which join the roof pieces together.


7
==== Materials ====
00:00:50,329 --> 00:00:59,157
And outside you can see who pieces overlap.  Can you see the overlapping?


8
Required:
00:00:59,157 --> 00:01:06,956
Overlapping means we use a screw through two layers of plywood and into the block.


9
12× 1.22m×2.44m sheets of 12mm thick plywood or similar material e.g OSB, strawboard
00:01:07,081 --> 00:01:08,249
So we overlap the edges.


10
6× 47mm×100mm lengths of 2m long carcassing timber or similar. This is approximately 2inches by 4 inches so please note that a lot of lumber called as “2 by 4” DO NOT actually measure 2”×4” for historical reasons.  
00:01:08,243 --> 00:01:11,243
And we overlap this edge too.


11
220+ 50mm long self tapping woodscrews. Preferably flange head with partially unthreaded shank
00:01:11,352 --> 00:01:14,352
This is far from being a perfect way to make it waterproof.


12
Optional:
00:01:14,496 --> 00:01:18,266
But you can do it without adding any additional component or adding any deep complexity to the system.


13
1-2× Tarpaulin for floor and to cover the roof
00:01:18,340 --> 00:01:23,401
For this to work we must cut the wall pieces a bit shorter than we would do normally.


14
1-2× Bottle of Foaming Woodglue
00:01:23,756 --> 00:01:26,756
So these instead of being 8 foot long are cut to 7 feet and 4 inches,


15
==== Tools ====
00:01:27,176 --> 00:01:33,092
which gives you additional space needed to make sure the roof is underneath (?) the wall


16
Recommended:  
00:01:33,593 --> 00:01:39,996
you make this with 12 OSB panels and 4 pieces of 4x8 (I think it's 2x4) and a bunch of screws


17
• Pen/pencil
00:01:40,945 --> 00:01:42,743
back inside


18
• Electric screw driver
00:01:43,282 --> 00:01:46,282
see what I mean ... (...) ...


19
• Circular saw
00:01:48,607 --> 00:01:51,607
just at the top there's a detail


20
• Handsaw
00:01:53,303 --> 00:01:58,245
see how we trimmed the pieces to make a hole


21
• Protractor (angle measurer)
00:01:58,658 --> 00:02:05,797
see this angle here? we simply trimmed a small piece off the side of the plywood, from one side and from the other so they fit together to (...)


22
• Power source
00:02:06,521 --> 00:02:09,521
so each piece of plywood ...


23
• String
00:02:10,145 --> 00:02:13,145
overlaps over the next on and then we trim them so they fit together this way


24
• Tape measure
00:02:13,404 --> 00:02:16,404
it's a bit tricky and we'd like to do a (...) properly later


25
• Tent pegs x 6 (or other way to mark the ground)
00:02:16,721 --> 00:02:19,721
but this is the basics of a plywood hexayurt


26
=== Construction ===
00:02:22,653 --> 00:02:25,653
thank you


27
Note: Always screw from the plywood into the block
00:02:26,307 --> 00:02:29,307
Use 2 screws are needed for each block face that meets a board.
i hope you can figure out the details on your own


28
==== Stage 1: Walls ====
00:02:30,936 --> 00:02:33,936
150 to hold the roof


29
Mark out a hexagon. First use the string to mark out a circle with a radius of 2.2m. Once the circle is drawn, mark one spot on the edge, put one end of the string there, and mark where the other end of the rope crosses the circle. Now start from that point, and mark the next crossing point. Continue all the way around to make the hexagon. Alternatively, hold the string in the middle and mark every 60°.
00:02:34,052 --> 00:02:37,052
120 to join the wall to the roof


30
Take 6 panels
00:02:37,178 --> 00:02:44,647
you can see the screws that go through the roof and go into those blocks (...)


31
Cut off one 25cm corner of each panel.  This is called the "Sri Lankan corner" because it was invented in Sri Lanka.
00:02:44,647 --> 00:02:46,904
and that's all there is to it


32
Cut a door and window(s) in one of the panels.
00:02:47,017 --> 00:02:48,606
the walls are full panels with 6 inches cut off one side


33
Cut 24 blocks at an angle of 120º angle. 18 are used for the walls. Safe the other 6 for later. There will be 3 blocks in each corner, one near the ground, one near the middle and the other near the roof.
00:02:48,732 --> 00:02:50,928
the pieces for the roof are half a panel, overlapped


34
Screw the blocks to join the walls together. The walls are not joined edge to edge, imagine a straight line down from the end of the "Sri Lankan Corner" and use this as the edge
00:02:51,463 --> 00:02:53,587
an that's the plywood hexayurt


35
Line up the corners to the hexagon you marked out.
00:02:53,720 --> 00:02:54,804
hexayurt.com


== Spanish ==
==== Stage 2: Roof ====
1
00:00:00,000 --> 00:00:08,713
Este es el Hexayurt que construimos en la reunión anual de Ingenieros Sin Fronteras y campamento de Acción Práctica.


2
Take 6 panels.
00:00:09,682 --> 00:00:14,625
Aquí ves los detalles de la construcción de un Hexayurt de conglomerado.


3
Cut each of them in half through the diagonal.
00:00:14,625 --> 00:00:23,353
Note: Some materials have a water resistance coating on one side. If so you will want to make two piles of 3 cut each pile along different diagonals for each pile
Es un ángulo de 150 grados cortado en una pieza de 2x4 pulgadas y atornillado desde fuera.


4
Trim off the point of each of the 12 triangles. First measure 15cm from the tip along the medium length side of the triangle and cut it straight off. Then measure 10cm further along the same side and cut from that point to the middle of the new tip.
00:00:23,453 --> 00:00:33,262
Aquí está el otro tamaño de bloque que usamos, mira ahí abajo, de 120 grados, que sostiene unas paredes con otras.


5
Use 2 triangles to create each of the 6 roof-pieces.  This is done by overlapping 2 triangles by the width of a block (roughly 50mm). Use 2 blocks.
00:00:33,726 --> 00:00:46,757
Y vamos fuera. Fuera hay un bloque de 120 grados que une la pared con el techo.


6
Cut 12 blocks at an angle of 150º angle.  There will be 2 blocks in each corner, roughly 60cm away from the the ends.
00:00:46,787 --> 00:00:49,787
Y hay piezas de 150 grados que unen las piezas del techo entre sí.


7
Join the roof pieces with the 150º blocks. Make sure that they are lapped properly. The to piece should protrude by 50mm.
00:00:50,329 --> 00:00:59,157
Use the center of the roof as guidance to how far up or down the individual roof modules should be slided before your screw in the screws.
Y por fuera puedes ver cómo las tablas se superponen unas con otras. ¿Puedes ver la superposición?


8
==== Stage 3: Lifting the Roof ====
00:00:59,157 --> 00:01:06,956
La superposición significa que ponemos un tornillo a través de dos capas de conglomerado, directamente hasta el bloque.


9
Split into three groups.  
00:01:07,081 --> 00:01:08,249
Así que superponemos los bordes.


10
Have ¼ of the people inside the hexagon waiting at the wall nearest the roof cone (Group 1)
00:01:08,243 --> 00:01:11,243
Have ¼ line up at the faces near at hexagon (Group 2)
Y superponemos este borde también.
Have the rest spread themselves evenly around the roof cone (Group 3).


11
Group 2 and 3 lift and reposition the roof cone so that a corner of the wall is directly facing a corner of the roof.  
00:01:11,352 --> 00:01:14,352
Esto está lejos de ser una manera perfecta de lograr que sea estanco al agua.


12
They then carry the roof toward the hexagon slowly.
00:01:14,496 --> 00:01:18,266
When near the wall, allow Group 2 to pass the load onto Group 1 and then move out of the way.
Pero ocurre que puedes hacerlo sin añadir ningún componente adicional ni añadir ninguna complejidad profunda al sistema.
Group 2 then moves around to the side with the door ready to receive the load again.  


13
Lower the roof into place and secure with the leftover blocks from Stage 1. Add additional screws at the corners, through the roof and into the top wall blocks.
00:01:18,340 --> 00:01:23,401
Para que funcione, tienes que cortar las piezas de las paredes un poco más cortas que como las cortarías normalmente,


14
00:01:23,756 --> 00:01:26,756
así que éstas en lugar de tener 8 pies de largo, tienen 7 pies y 4 pulgadas,


== Variants ==


15
=== Haiti/Hurricane Hexayurt ===
00:01:27,176 --> 00:01:33,092
A plywood hexayurt with reinforced corners and anchoring to the ground for high wind conditions.
y eso te da el espacio adicional que necesitas para asegurarte de que el techo está por debajo [?] de la pared


16
=== [[Hexayurt_H13_Plywood|Plywood H13]]  ===
00:01:33,593 --> 00:01:39,996
The plywood version of Scott Davis and Dylan Toymaker's [[Hexayurt H13|H13]] design. Using one more sheet of plywood and switching the arrangementof the roof panels results in a structure with a full 8′ entry-way, much more interior walkable space SUP PEPLZZZZZ!!!!!!!!!!!!!
fabricas esto con 12 piezas de OSB y 4 piezas de 4x8 y un puñado de tornillos


17
== Additional details ==
00:01:40,945 --> 00:01:42,743
volvemos al interior


18
==== Finer Points ====
00:01:43,282 --> 00:01:46,282
mira lo que quiero decir ... [...] ...


19
===== Corner Block =====
00:01:48,607 --> 00:01:51,607
justo en la parte más alta hay un detalle


20
When screwing the block at the edges with an overlap, Screw the block to the sheet that is at the edge first. Leave about 1cm between the corner of the block and the edge of the sheet. Then screw the other sheet in place. this will "pull" the sheets tighter than if done the other way.
00:01:53,303 --> 00:01:58,245
mira cómo hemos recortado las piezas para hacer un agujero


21
==== Temporary Measures ====
00:01:58,658 --> 00:02:05,797
OR NAHHHHHHH
¿ves este ángulo de aquí? simplemente cortamos una pequeña pieza del borde del tablón, de un lado y del otro,
===== Door =====
de manera que encajan uno con otro para [...]


22
Screw four blocks near the corners of the door so that they overhang a little bit and give a lip for the door to rest on
00:02:06,521 --> 00:02:09,521
On the inner side screw two block around the middle. Secure one side with two screws. For the other side use only one screw, position he block and the screw so that dependent on the orientation the block it will either hold the door in place or allow it out. This will allow the door to “locked” from the inside until more permanent measures are in place Add a last block to the door as a handle.
así que cada pieza de madera ...
Diagrams pending


23
==== Tricks for limited tools ====
00:02:10,145 --> 00:02:13,145
cruzas cada pieza de madera sobre la otra y luego las recortas para que encajen una con la otra de esta manera


24
===== Measuring angles =====
00:02:13,404 --> 00:02:16,404
Take a sheet of paper, fold it in half and then half again. Now fold in a ‘Z’ it into thirds. Unfold and you now have a sheet that can be used to measure any multiple of 30°.
tiene un poco de truco y pensamos hacer un [...] bien hecho más tarde


25
00:02:16,721 --> 00:02:19,721
pero eso es lo básico de un hexayurt de conglomerado


26
00:02:22,653 --> 00:02:25,653
gracias


27
== Links ==
00:02:26,307 --> 00:02:29,307
espero que puedas "figure out" los detalles por tu cuenta


28
'''These links need to be sorted''' [[User:LucasG|LucasG]] 14:54, 14 April 2011 (PDT)
00:02:30,936 --> 00:02:33,936
* 3d sketchup by [https://twitter.com/#!/jumplogic/status/115051646190485504/photo/1 Al Razi Masri] [http://sketchup.google.com/3dwarehouse/details?mid=ab1e2b545e05ba6919cdfa1d5f3e3e8a&result=4 here].
los de 150 sostienen el techo
* Haiti http://vinay.howtolivewiki.com/blog/other/the-hexayurt-in-haiti-a-technical-description-1678 and http://files.howtolivewiki.com/hexayurt_in_haiti_v1.1.pdf
 
* Engineers Without Borders (Sheffield, UK) video shows the entire construction process https://www.youtube.com/watch?v=xLdP6Wsv0bQ and text at http://piratepad.net/jYVkXNdy3n
29
* [http://blip.tv/play/AYGf3CMC Video (English)]
00:02:34,052 --> 00:02:37,052
* [http://www.appropedia.org/images/3/39/Plywood_Hexayurt_Construction_Details.PDF Construction details]
los de 120 unen la pared al techo
* [http://www.overstream.net/view.php?oid=uzu8epmcasi5 Video (Spanish subtitles)]
 
* Another video, with some construction details: http://www.youtube.com/watch?v=-fwlIxWomyw
30
* Finished, lived in, insulated OSB hexayurt with a wood frame construction. http://yurtbuilder.blogspot.co.uk/2014/07/osb-hexayurt.html
00:02:37,178 --> 00:02:44,647
puedes ver los tornillos que atraviesan el techo y se meten en esos bloques [...]
 
31
00:02:44,647 --> 00:02:46,904
y eso es todo lo que hay
 
32
00:02:47,017 --> 00:02:48,606
las paredes son paneles completos con 6 pulgadas recortadas de un lado
 
33
00:02:48,732 --> 00:02:50,928
las piezas del techo son medio panel superpuestas
 
34
00:02:51,463 --> 00:02:53,587
y ese es el hexayurt de conglomerado
 
35
00:02:53,720 --> 00:02:54,804
hexayurt.com

Revision as of 14:58, 14 September 2018


There's a substantial amount of text at the discussion page. It will be restored gradually as soon as the outline is clear. Use it now if you wish. LucasG 07:49, 24 July 2011 (PDT)

Plywood hexayurt is the catch-all term being used for the family of frameless hexayurts constructed out of plywood or similar materials. The most notable alternative is OSB. They are not to be confused with the Timber Frame Hexayurt. Plywood Hexayurts lack any form internal framing.

Hexayurt made from OSB at Small is Festival 2010.
OSB Hexayurt.

Plywood

Sketch up models of Plywood Hexayurt.
Sketch up models of Plywood Hexayurt showing modifications.

This is the primary hexayurt solution for disaster relief situations due to the materials used and ease of constructions. For disasters in extreme cold, use isulation board and the construction instruction in Hexayurt Playa

Hexayurts are basically made of panels and connectors. The design has been modified extensively because of issues that arise from constructing out of plywood with no frame. The concerns of Water-proofing, insect-proofing, fixing to the ground and portability are different from that of the more common polyiso hexayurt.

If the panels are from wood, then:

  • the connectors need to be stronger than with lighter panels.
  • fixing the hexayurt to the ground is probably needed only if there's risk of earthquakes or landslides.
  • water-proofing and insect-proofing need to be considered, asking the local experts.
  • portability will need a group of synchronised carriers.

Modifications

  • Screwing directly into plywood is not recommended and due the angles involved it is sometimes impossible. Therefore all joints are made using wooden blocks.
  • The two side of the roof triangles overlap so that they may be screwed together. Also the roof panels are lapped so that they sit on top of one of the neighbouring pieces but under the other.
  • Because of these overlaps the tips of the triangle must be cut.
  • This overlap in the roof causes the roof’s foot print to be smaller than in the basic design. Also, to water to run off the roof properly, the roof must overhang. So the walls must be connected into a smaller hexagon to be within the radius of the roof. This is achieved by letting one wall protrude when making the joint.
  • To prevent the roof clashing with the protruding wall one corner of the wall sheet is cut. This modification is called the “Sri Lankan corner”.

How to

If unclear refer to the Sketchup model or videos in the links section.

Requirements

People

2 all constructions stages except ‘Stage 4: lifting the roof’

≈18 for Stage 3: lifting the roof. Number depends on strength of the people and material used. Plywood is approximately 40kg a sheet and OSB is 20kg a sheet. So the roof can weigh 240kg or 120kg. You want a maximum of 15-20kg per person. Lasts roughly 5 minutes

Materials

Required:

12× 1.22m×2.44m sheets of 12mm thick plywood or similar material e.g OSB, strawboard

6× 47mm×100mm lengths of 2m long carcassing timber or similar. This is approximately 2inches by 4 inches so please note that a lot of lumber called as “2 by 4” DO NOT actually measure 2”×4” for historical reasons.

220+ 50mm long self tapping woodscrews. Preferably flange head with partially unthreaded shank

Optional:

1-2× Tarpaulin for floor and to cover the roof

1-2× Bottle of Foaming Woodglue

Tools

Recommended:

• Pen/pencil

• Electric screw driver

• Circular saw

• Handsaw

• Protractor (angle measurer)

• Power source

• String

• Tape measure

• Tent pegs x 6 (or other way to mark the ground)

Construction

Note: Always screw from the plywood into the block Use 2 screws are needed for each block face that meets a board.

Stage 1: Walls

Mark out a hexagon. First use the string to mark out a circle with a radius of 2.2m. Once the circle is drawn, mark one spot on the edge, put one end of the string there, and mark where the other end of the rope crosses the circle. Now start from that point, and mark the next crossing point. Continue all the way around to make the hexagon. Alternatively, hold the string in the middle and mark every 60°.

Take 6 panels

Cut off one 25cm corner of each panel. This is called the "Sri Lankan corner" because it was invented in Sri Lanka.

Cut a door and window(s) in one of the panels.

Cut 24 blocks at an angle of 120º angle. 18 are used for the walls. Safe the other 6 for later. There will be 3 blocks in each corner, one near the ground, one near the middle and the other near the roof.

Screw the blocks to join the walls together. The walls are not joined edge to edge, imagine a straight line down from the end of the "Sri Lankan Corner" and use this as the edge

Line up the corners to the hexagon you marked out.

Stage 2: Roof

Take 6 panels.

Cut each of them in half through the diagonal. Note: Some materials have a water resistance coating on one side. If so you will want to make two piles of 3 cut each pile along different diagonals for each pile

Trim off the point of each of the 12 triangles. First measure 15cm from the tip along the medium length side of the triangle and cut it straight off. Then measure 10cm further along the same side and cut from that point to the middle of the new tip.

Use 2 triangles to create each of the 6 roof-pieces. This is done by overlapping 2 triangles by the width of a block (roughly 50mm). Use 2 blocks.

Cut 12 blocks at an angle of 150º angle. There will be 2 blocks in each corner, roughly 60cm away from the the ends.

Join the roof pieces with the 150º blocks. Make sure that they are lapped properly. The to piece should protrude by 50mm. Use the center of the roof as guidance to how far up or down the individual roof modules should be slided before your screw in the screws.

Stage 3: Lifting the Roof

Split into three groups.

Have ¼ of the people inside the hexagon waiting at the wall nearest the roof cone (Group 1) Have ¼ line up at the faces near at hexagon (Group 2) Have the rest spread themselves evenly around the roof cone (Group 3).

Group 2 and 3 lift and reposition the roof cone so that a corner of the wall is directly facing a corner of the roof.

They then carry the roof toward the hexagon slowly. When near the wall, allow Group 2 to pass the load onto Group 1 and then move out of the way. Group 2 then moves around to the side with the door ready to receive the load again.

Lower the roof into place and secure with the leftover blocks from Stage 1. Add additional screws at the corners, through the roof and into the top wall blocks.


Variants

Haiti/Hurricane Hexayurt

A plywood hexayurt with reinforced corners and anchoring to the ground for high wind conditions.

Plywood H13

The plywood version of Scott Davis and Dylan Toymaker's H13 design. Using one more sheet of plywood and switching the arrangementof the roof panels results in a structure with a full 8′ entry-way, much more interior walkable space SUP PEPLZZZZZ!!!!!!!!!!!!!

Additional details

Finer Points

Corner Block

When screwing the block at the edges with an overlap, Screw the block to the sheet that is at the edge first. Leave about 1cm between the corner of the block and the edge of the sheet. Then screw the other sheet in place. this will "pull" the sheets tighter than if done the other way.

Temporary Measures

OR NAHHHHHHH

Door

Screw four blocks near the corners of the door so that they overhang a little bit and give a lip for the door to rest on On the inner side screw two block around the middle. Secure one side with two screws. For the other side use only one screw, position he block and the screw so that dependent on the orientation the block it will either hold the door in place or allow it out. This will allow the door to “locked” from the inside until more permanent measures are in place Add a last block to the door as a handle. Diagrams pending

Tricks for limited tools

Measuring angles

Take a sheet of paper, fold it in half and then half again. Now fold in a ‘Z’ it into thirds. Unfold and you now have a sheet that can be used to measure any multiple of 30°.


Links

These links need to be sorted LucasG 14:54, 14 April 2011 (PDT)

Retrieved from "https://www.appropedia.org/w/index.php?title=Hexayurt_project/Hexayurt_plywood&oldid=370198"
Cookies help us deliver our services. By using our services, you agree to our use of cookies.