Building treehouses and forts is a treasured childhood pastime. If you’re planning on renovating, but have a sentimental attachment to your old windows and doors, a treehouse or backyard fort is an excellent way of putting them to good use. We’ve gathered some of our favourite treehouses off of Pinterest that feature old looking or repurposed windows and doors. Ready for a trip down memory lane?

1. 

Rustic treehouse with large, repuposed criss-crossed windows, featuring a wooden bridge and small string-lights.

The windows on this ‘bridged beauty’ feature worn wooden frames and traditional criss-cross grilles, for a sense of style and adventure.

2.

Treehouse with white shutters and swing. Featuring sturdy wooden staircase and criss-crossed windows.

Was there ever a more ideal place to swing? We love the white shutters and classic-style windows on this cliff-facing clubhouse.

3. 

Ground-level treehouse with repurposed door and swing-open window. Cascading string-lights on face of treehouse are seen.

What an excellent use for a rustic door and a traditional swinging-style window. This rugged, patio tree house could be mom and dad’s hideout.

4.

A lightly-coloured, two-story, ground-level backyard treehouse featuring shutter-style windows.

The swinging, shutter-style windows on this backyard tree house would make an excellent compliment to any garden. Gorgeous!

5. 

A treehouse with a small glass window featuring a pirate flag and two ladders; one is a white ladder and one is a rope ladder.

Ahoy! This tree house brings back memories of long summer days spent playing fun imaginative games in the back yard. A vinyl picture window makes a lofty lookout point.

6. 

A grand two-story, fully enclosed treehouse with a fully shingled roof and glass windows.

The Single-hung windows on this fantastic children’s playhouse are simply adorable. Perfect for sliding open to toss up supplies or snacks.

7.

Rustic treehouse partially hidden in spruce trees featuring a rustic ladder leading up made of small logs.

This all-season tree house is a hidden gem! We couldn’t think of a better use for a set of classic wood windows with grilles.

Who said tree houses were just for kids? Check out the Pinterest pages of these pictures for more inspiring DIY projects. If you’re thinking about renovating, visit jeld-wen.com for an endless amount of modern and classic window styles and designs.