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Can I convert an old window into a working door for a child's playhouse made from a water tank, or use something else? Answered

I'm building a playhouse from a cube shaped 275 gallon water tank and need to figure out how to build a working door for a small child. The tank will form the basic structure as it is going to be partially buried on one side, like a "hobbit hole" and I figured the tank would be water-proof. I'm still working out the details, and figure the door needs to be at least big enough I can reach in to remove the child easily. (The tank will be ventilated through the filling cap on the top and a dryer vent on an exposed side wall.) I plan to cut a hole in the side of the tank once I figure out how to make the door.
I know this is a strange project, but it should be a lot of fun for my little hobbit this summer, and I appreciate any help I can get!


Make sure you don't put too much weight on the roof if you are going to cut holes in the sides. Structural integrity.

Any glass in the door should be tempered or shatterproof plastic.


7 years ago

Building your own door is actually quite easy. A simple Z pattern door made of 1' x ?" lumber with two or three strap hinges will make a nice door.
A couple of recommendations; if you decide to re-purpose an old window be sure to replace the glass with plexi-glass or a piece of plywood. Also, make the door open outwards. Inward opening doors can be easily blocked if something is placed on the floor inside.


7 years ago

An old vinyl or aluminum slider window could be used as a "sliding glass" door, but you should be sure to disable any locking mechanisms. You will probably have to reinforce the plastic around the opening with wood to provide secure attachment for the window.