As part of our gardening with kids series this spring, I wanted my husband to share with you how to make a DIY greenhouse box. This is his very first post on our blog! He's getting into wood working quite a lot around here. So far, he's made a kid's school table, my desk, a buffet table, a raised garden bed, and more and now I'm going to turn the blog over to him and let him guide you step by step through making your own greenhouse box!
Why make a greenhouse box? When gardening with kids, you may be like us and not be blessed with a good space for starting seeds indoors until after the last frost. So we're glad to have our greenhouse box to go ahead and move the little seedlings outside! The box has a hinged glass lid which allows us to open it during the day when sunny and close it at night to keep out frost. Best of all, it works great and keeps us from purchasing pricey indoor lights for seeds. Ready to build? You can download and print the instructions and materials list at the bottom of the post.
1 window of choice and size
1 8 ft. Cedar plank- width to the depth you need the box to be (I used the widest I could find.)
2 sliding hinges for inside corners
2 3-1/2-in x 1-1/2-in Cabinet Hinges for outside
1 handle of choice (I got a decorative handle.)
paint or stain (optional)
Steps for an easy DIY greenhouse box:
1. Chose window frame. The first step is to find a suitable window frame. You can use an antique window for a nice touch.
2. Develop your cut list and purchase cedar plank. Measure your window’s length and width, and that will become your measurements for a cut list. I went to our local hardware store and purchased my cedar board to my desired depth and cut it to my window's measurements.
3. Install sliding hinges. To install them, I attached them on the back inside corners of the box and to the window as a hinged lid. These are tight enough to keep the window from slamming on you.
4. Install outside hinges. I then attached a couple of Gatehouse 3-1/2-in x 1-1/2-in Matte Black Cabinet Hinges to the back side of the box and window frame for movement of the lid up and down.
5. Make the greenhouse box floor. For the floor of the greenhouse box, I stapled plastic to the cedar box frame and crossed it with pallet planks using a spacing of 3 inches or so between every plank.
6. Create drainage holes. I put some holes throughout the plastic for drainage.
Once your greenhouse box is finished, you can set it up in a sunny spot in your yard. You can fill it with garden soil or set potted plants inside. Remember to close the lid for frosty evenings. Open the lid in the mornings and leave open during the heat of the day. Your plants should do fine! When the weather warms up, you can use the box as a raised bed for smaller plants or start your fall garden in it.
Print your materials list and instructions here.
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