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Kid's Play Fort Project

treeless play fort
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How to build a Kid's Play Fort

Page Contents
1: Introduction and about the wood sizes  you are on this page
2: Required wood and alternative sizes
3: Cutting list and hardware requirements
4: Plan - Footprint (looking down view)
5: Plan - Front and rear wall-frame
6: Plan - Front elevation (looking to the front)
7: Plan - Rear elevation (looking to the rear)
8: Plan - Left side elevation (left side view)
9: Plan - Right side elevation (right side view)
10: Plan - Floor (floor plan and detail)

11: Step-by-step images (pictorial summary)
12: Instructions step 1
13: Instructions step 2 - 4
14: Instructions step 5 - 8
15: Instructions step 9 - 11
16: Instructions step 12 - 13 and safety note
17: Photos - other peoples handiwork
18: User Photos/Comments
Appendage: Counterbalance for the trapdoor
Appendage: Guide to adding a slide

Note: This complete plan-set with all of the pages in one handy pdf file (ad free) can be purchased online and downloaded immediately to your computer for only $5. Grab here.

To view all available downloadable pdf files click here.


kids play fort

How to build a Kid's Play Fort - A fort that will provide hours of fun for kids young and old!

This detailed plan-set with step-by-step instructions is in both metric (mm) and imperial (inch) dimensions.
The design includes a trap door entry, a climbing wall, a swing, and there is also a slide installation guide.
The complete frame is fixed together with bolts, so as well as being very strong, the fort can also be dismantled.

The footprint (ground area) is Approx 1800mm x 1800mm (6' x 6'), and the overall height is 3200mm (10' 8").
Floor area is 1500mm x 1600mm (5' x 5' 4"), and the floor height is 1300mm (4' 4").

About the wood sizes
The dimensions of the lumber used for this project are given in both metric and inches. All dimensions are first written in millimeters followed by feet and/or inches encased in brackets.

Frame lumber sizes (widths and thicknesses) referred to in this project are the approximate actual sizes, that is, the size of the lumber once it has been surfaced (dressed, planed). The actual size is smaller than the nominal size.
For example, if you pop along to the local lumber store and ask for a length of 100mm x 50mm (2" x 4") lumber that has been surfaced/dressed on all sides (S4S), the actual finished size will be approximately 90mm x 45mm (1 1/2" x 3 1/2").

The table below shows the approximate differences between the nominal and actual sizes of framing lumber. Alternative sizes are mentioned on the next page.

Metric (millimetres)
50mm x 50mm 45mm x 45mm
75mm x 50mm 70mm x 45mm
100mm x 50mm 90mm x 45mm
150mm x 50mm 140mm x 45mm
100mm x 100mm 90mm x 90mm
Standard (inches)
2" x 2" 1 1/2" x 1 1/2"
2" x 3" 1 1/2" x 2 1/2"
2" x 4" 1 1/2" x 3 1/2"
2" x 6" 1 1/2" x 5 1/2"
4" x 4" 3 1/2" x 3 1/2"