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| Number of Bags | Pounds @ 25 each (average) | Approx square feet (length x height) | JavaScript Free Code Linear projects: Another way to calculate how many bags you might need for something like a wall is to simply figure how many square feet the face of the construction will be.(height times length). Rules of thumb: 3 bags for every 1 square foot 15 bags for every 5 square feet 30 bags per every 10 square feet 75 bags for every 25 square feet 150 bags for every 50 square feet 300 bags for every 100 square feet. You may also want to consider using larger bags (available through special order), which are better at facilitating those smooth, cornerless, sweeping curves. Circles and arcs: If you're considering building something circular or incorporating an arc, then calulating how many of our 16" long bags you'll need will start with the formula [length = diameter times pi times x/360] where pi = 3.14159265 and where x is the degree of your arc, then dividing by 1.33333 feet. Example: a 15 foot diameter dome has a circumference of a little over 47 feet (15 feet times pi); so, 47 divided by 1.33333 = 35.34 bags for the first course. Confusing? You're right. Call or write us. We'll try our best to help. Weight is included if you want to haul your own bags to save $$$ on delivery charges. It may also give you some food for thought regarding preparing your foundation and / or footing. Additionally, it might give you a clearer idea why compacted earthbag construction has been compared to rammed-earth construction; the sheer weight of the bags pressing down over time consolodates your project's structural integrity. Also: if you're considering building a habitation, it's worth saying that it's always a good idea to enlist the services an architect or a structural engineer to sign off on your plans. We'll be posting more on this site on the how-to's of building structures & relevant codes. (Here's the 2006 NM Earthen Building Material Code) home | products | getting started | computations | techniques | plastering | links about us | contact |
| 1 | 25 | 0.33 | |
| 2 | 50 | 0.67 | |
| 3 | 75 | 1.00 | |
| 6 | 150 | 2.00 | |
| 9 | 225 | 3.00 | |
| 12 | 300 | 4.00 | |
| 15 | 375 | 5.00 | |
| 18 | 450 | 6.00 | |
| 21 | 525 | 7.00 | |
| 24 | 600 | 8.00 | |
| 27 | 675 | 9.00 | |
| 30 | 750 | 10.00 | |
| 45 | 1,125 | 15.00 | |
| 60 | 1,500 | 20.00 | |
| 75 | 1,875 | 25.00 | |
| 90 | 2,250 | 30.00 | |
| 105 | 2,625 | 35.00 | |
| 120 | 3,000 | 40.00 | |
| 135 | 3,375 | 45.00 | |
| 150 | 3,750 | 50.00 | |
| 165 | 4,125 | 55.00 | |
| 180 | 4,500 | 60.00 | |
| 195 | 4,875 | 65.00 | |
| 210 | 5,250 | 70.00 | |
| 225 | 5,625 | 75.00 | |
| 240 | 6,000 | 80.00 | |
| 255 | 6,375 | 85.00 | |
| 270 | 6,750 | 90.00 | |
| 285 | 7,125 | 95.00 | |
| 300 | 7,500 | 100.00 | |
| 375 | 9,375 | 125.00 | |
| 450 | 11,250 | 150.00 | |
| 525 | 13,125 | 175.00 | |
| 600 | 15,000 | 200.00 | |
| 900 | 22,500 | 300.00 | |
| 1,200 | 30,000 | 400.00 | |
| 1,500 | 37,500 | 500.00 | |
| 3,000 | 75,000 | 1,000.00 | |
| 4,500 | 112,500 | 1,500.00 | |
| 15,000 | 375,000 | 5,000.00 | |
| 30,000 | 750,000 | 10,000.00 |