How to use the raised bed cost calculator
Enter your bed’s length and width in feet, choose a height, and pick your frame material and soil fill. Set how many beds you are building and press Calculate Raised Bed Cost. The tool breaks down the material cost, the soil cost, the total per bed, and the grand total for all your beds, so you can budget the whole project before you head to the store.
What goes into the cost of a raised bed
A raised bed has two main expenses: the frame that holds it together and the soil that fills it. The frame cost depends on the perimeter of the bed, how tall it is, and the material you choose, since taller beds need more boards stacked around the same footprint. The soil cost depends on the bed’s volume and the quality of the fill. For all but the smallest beds, the soil is usually the larger of the two, which surprises many first-time builders.
Choosing a frame material
Pine is the budget option and easy to find, but it breaks down within a few years. Cedar is the classic choice because its natural oils resist rot and insects, giving a good balance of cost and longevity. Composite and recycled plastic lumber never rot and shrug off the weather, which suits gardeners who want a build-once bed. Galvanized metal is durable, sleek, and increasingly popular, though it carries the highest price per foot. The right pick balances your budget against how many seasons you want the bed to last.
Filling the bed without overspending
Soil volume adds up quickly, so plan it carefully. Buying in bulk by the cubic yard is far cheaper than bagged soil once you need more than a bag or two. A common money-saving approach is to fill the lower portion of a deep bed with logs, branches, and other compostable matter, then cap it with a high-quality growing mix where roots actually live. This stretches your budget, improves drainage, and feeds the bed as the base slowly decomposes, though the surface will settle and need topping up over time.
Tips to keep your project on budget
- Order soil in bulk and split a delivery with a neighbor to save on bagged prices and fees.
- Choose cedar or composite if you want to avoid rebuilding a rotted pine bed in a few years.
- Keep beds 4 feet wide or less so you can reach the middle without stepping inside.
- Build deeper beds only where you need them, since height drives both lumber and soil costs.
- Budget a little extra for screws, brackets, and any hardware cloth or liner.