Once the joists and posts are secured, install the treehouse floor by screwing 2x pressure-treated lumber across the joists. I used alternating 2 x 4s and 2 x 6s to create an interesting look.

How To Level a Treehouse Floor. A treehouse, especially a large one, needs a stable floor. You'll need to center it over the ...

Here's how to build a treehouse that's safe, sturdy, and something your kids can enjoy for many summers to come. The post How to Build a Treehouse That Sets a New Bar for Playtime appeared first ...

Visitors can enter the treehouse either through an elevated trail or a set of stairs that lead up from the forest's floor. (Timothy Hursley) Tree House's bulbous form causes it to resemble a cocoon.

This bizarre cocoon-looking structure, which weaves between trees in Hooke Park, near Beaminster, Dorset, was the brainchild of Bournemouth design students.