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Treehouse projects for beginners—no tree required!

Parts list | Base strips | Vertical framing | Roof supports | Walls | Roof | Door

Simple treehouse plan

Parts list

X-ray 3D view of treehouse

These pages cover practical information to help you build your own simple treehouse, safely and with the minimum hassle. This treehouse is very easy to construct using 2"x2" and 2"x1" pine and ¾" plywood. You will need to build the basic floor supports yourself, due to the difficulty of designing a universal floor to fit any tree. See construction basics for support examples for different tree types.

Plan of the treehouse

Parts list

Lengths are measured in centimetres, cross-sectional dimensions are measured in inches. Materials are based on those available in the UK but other countries will have similar dimensioned materials that can be easily substituted.

Roof

Flat roof: 240x120 (8'x4') ¾" plywood - this is usually a full sheet
Alternative for pitched roof: 2 of 240x80 ¾" plywood instead

Walls

2 of 220x100 ½" plywood (the door will be 50x100 of this)
2 of 100x100 ½" plywood

Windows

Any size but about 75x50 recommended. You could have a window at either or both ends.

Floor

220x100 ¾" plywood (or bigger to fit supports)

Frame

Floor
220 (2"x1")
170 (2"x1")
90 (2"x1")
95 (2"x1")
total = 5.75 metres (2"x1")

Walls
5 of 93 (2"x2")
total = 5 metres (2"x2")

Roof
2 of 220 (2"x2")
2 of 90 (2"x2")
total = 6.2 metres (2"x2")

Extra for pitched roof option
4 of 71 (2"x2")
2 of 100 (2"x1")
total = 2.84 metres (2"x2") and 2 metres (2"x1")

Other things you need

Once you have collected together the parts shown above, you can begin building...

Parts list | Base strips | Vertical framing | Roof supports | Walls | Roof | Door