You are here: Home Homestead Living How to Make Your Own Concrete Tamper How to Make Your Own Concrete Tamper by Kane Jamison June 22, 2012, 8:25 pm 5 Comments The nearby hardware store wanted $35 for one of these 10×10 inch metal tampers… Our Earthbag Building Workshop is about to kick off tomorrow, and I spent the day doing some last minute preparations with our instructor, Scott Howard of Earthen Hand Natural Building. A big portion of the earthbag construction process is tamping the dirt into bags to make sure they’re packed tightly, and then tamping them again once they’re laid in place in the wall. You can buy tampers at hardware stores, but they cost anywhere from $20 to $40 depending on the type and size. Our local hardware store was charging $35, and we needed a few of them. Instead of buying them, we made 4 tampers today with branches and a bag of concrete. All together it cost $16, and it only took us 30 minutes. Here’s how they’re made: 1) Cut the Branches to Size You’ll want to choose branches that are sturdy, and at least as thick as what you’d see for a wooden shovel handle at the hardware store. Also, it’s best to use dried wood, since fresh cut wood might shrink a year from now. We cut the branches to roughly 4-5 feet. Shoulder height or slightly less is appropriate. 2) Drill Screws Into the Bottom & Wrap Wire Around the Screws The screws and wire help fix the branch to the concrete and make the entire tamper stronger. Drill screws into the branch and wrap wire around each screw. 4) Set Up String to Hold The Branches in Place The string is tight between two points, like a guitar string, and runs back and forth twice, and is twisted around itself. This way, you can place the branches between the strings and it will stay in place while you pour the concrete. The string should be wrapped tightly between two points and twisted, so the branches can be held vertically in place while the concrete dries. 5) Cut Plastic Planters to Size We used the cheap black plastic planters that you get plant starts in from the nursery. They’re about 6-8 inches tall, and 5-6 inches wide. You can use any similar container depending on the size of the tamper you want. The large end of the planter goes on top of a piece of plywood. The small end (usually the bottom of the planter) gets cut off so that it becomes a plastic tube, and you can stick the branch in. See the photos below for a visual, and click the photo to see a larger version. 6) Mix Concrete We used quick set concrete. It sets in 15 minutes, is hard in 1 hour, and is 90% cured after 24 hours. Technically it takes 28 days to continue curing, but it should be usable by the end of the day tomorrow. The bag of concrete was our only expense since we had screws and wire laying around, and it cost $16. 7) Fill Planters and Use A Stick to Pack the Concrete In The concrete goes in fairly easily, but you’ll want to take a small stick and poke it in to make sure the concrete makes it into all of the nooks and crannies. When the container is full, I rounded off the concrete smoothly to make the tamper look nicer. Plastic Pots Form the Mold for the Concrete Tampers 8) Let It Dry & Break Off The Planters Once the concrete is cured you can either leave the plastic planter on there or break it off, your choice. At that point you’re all set – tamp away! Here’s one of Scott’s finished tampers that he’s been using for years: Finished Homemade Cement Tamper – Finished cost of $4 per tamper! See more Previous article Documentary Short Looks at Monsanto’s Hold on Hawaii Next article The Week in Water: Jun 16-22, 2012 Written by Kane Jamison Kane is the founder of Insteading. He lives on his own urban homestead with his family in West Seattle. 5 Comments Leave a Reply v v nice. Reply good idea! Reply Nice I’m going to try it tonight. Thx! Reply Great idea, going to try it out. Thanks, Reply Good Idea I’m going to make one this weekend, Reply Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Upload a photo / attachment to this comment (PNG, JPG, GIF - 6 MB Max File Size): (Allowed file types: jpg, gif, png, maximum file size: 6MB.