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Do Metal Raised Beds Need to Be Lined?

Many people wonder if they need to line their metal raised beds. If you’re wondering about the benefits and disadvantages of lining, read on! In this article, you’ll learn about the various materials used in raised bed construction, the advantages of lining a raised bed, and the costs of the lining.

Lining a metal raised bed

There are several benefits to lining a metal raised bed. For one, it prevents ground-dwelling pests and weeds from accessing your garden. Another benefit is soil drainage. Using a liner helps retain the best soil in your bed. Also, it helps prevent overwatering.

Another benefit of a raised bed liner is that it is shallower. You can use different materials, depending on the conditions and your preferences. For example, you can use stainless steel mesh, which will not rust. You can also use wood, but remember that it won’t last as long as zinc-coated steel.

First, measure the width of your metal bed. You can make it wider by cutting a panel in half. Make sure you cut a piece that is at least eight feet long. Then, mark halfway on any side of the bed. Next, screw four more 1” self-drill screws through the top ridge of the corrugated panel. Next, screw the four additional screws through the 4′ x 4”, skipping two hills with each screw.

You can also use garden waste products as a base layer. While they’re not ideal for growing plants, they’re lightweight and can decompose quickly. Plus, they will build up the soil’s organic content. This method will reduce the height of your metal bed, but it can be a great way to create a raised bed.

Another benefit of using a metal raised bed is its longevity. If you want to extend the life of your garden, galvanized steel will not rust. And it’s more affordable than cedar and redwood. But while it doesn’t last as long as cedar, it will still last a decade or so.

Lining a metal raised bed
Lining a metal raised bed

Materials available for building a raised bed

When building a raised bed, you have plenty of options. You can opt for a brick one or a metal one. Both have benefits and drawbacks. For example, a brick-raised bed is easy to maintain, and the best part is that it can be stacked horizontally. In addition, bricks can be salvaged from other homes, so you can save the environment while maintaining a stylish look. You can also opt for a metal raised bed if you are looking for a modern and sleek look. This material is durable, and it can reflect heat, which can help extend the growing season.

While wooden boards are very durable, they are not ideal for outdoor use. They can rot and become unsightly over time. However, if you are building a metal bed, you can choose a material that will resist rusting and weathering. Cedar and cypress are both naturally rot-resistant woods. However, you should seal the wood before building it. You can also use wood logs and sticks for a more rustic look. Moreover, you can also make use of recycled wood.

Besides wood, corrugated steel sheets are also an option. The latter can be purchased from a farm supply store. However, they are pricier than galvanized stock tanks. These tanks are available in different sizes and shapes. Most of them are primarily used to feed farm animals but are also becoming increasingly popular among gardeners.

Another option is to build a raised bed out of railroad ties. However, if you are concerned about the chemical composition of pressure-treated lumber, you can consider using cedar or redwood instead. Both these materials are naturally rot-resistant and are a better choice than pressure-treated pine.

If unsure of your building skills, you can opt for a raised bed kit. These kits are designed for people who do not have much experience with construction. Most kits have all the materials you need to complete your project. They include pre-cut wood, galvanized steel, nuts and bolts to assemble them, landscape fabric, and more.

Materials available for building a raised bed
Materials available for building a raised bed

Benefits of lining a metal raised bed

If you’re considering using a metal raised bed in your garden, you should consider lining the bottom of it with landscape fabric. This material prevents the soil from becoming waterlogged and protects the plants from weeds. A wooden raised bed doesn’t require a bottom liner, and it allows the soil to drain properly.

Before lining the bottom of a metal raised bed, ensure you have selected good-quality gardening soil. Good soil allows roots to penetrate deeper and gain access to more soil and nutrients. However, you should ensure the earth is free of rocks and other debris. For this purpose, you can screen the soil using a 1/2″ mesh, and use a hand tool to remove rocks. After removing rocks, add soil amendments or organic fertilizers to the bed. Once the soil has been added, you can spray it with a fine mist, which lowers the level of the soil.

Another good option for lining a metal raised bed is hardware cloth, a mesh-like metal cloth sold in rolls at hardware stores. This fabric is ideal for raised beds because it prevents pests from digging up the bottom liner, preventing weed seeds from growing into the raised bed. Another advantage of hardware cloth is that it won’t rust, which is a must for raised beds made of metal.

A plastic liner can help keep pests from damaging the soil in your garden. It also protects your plants from being eaten by critters. This lining will also keep weeds from reaching your plants and save you money in the long run. You can also use a cloth to line the sides and bottom of the raised bed.

Another benefit of using a raised bed liner is that it will reduce the amount of time you spend on weeding. Raised bed soils can be susceptible to temperature changes, and a liner will limit the amount of soil that dries out in such conditions.

Cost of lining a metal raised bed

When lining a metal raised bed, it’s important to choose the best liner material that will prevent weeds and allow air and water to enter the soil. Fortunately, there are a few good options to choose from. For example, you can choose a fabric that is made of cotton, linen, or hemp. This type of fabric is often used to make awnings and tents and is perfect for use as a liner for raised beds. You can also choose a tan colored canvas.

When lining a metal raised bed, you can choose a material resistant to rust, peeling, and cracking. These materials also won’t get damaged by mowing or edging, which means that you won’t have to replace them every few years. You’ll be able to use them for decades with minimal maintenance. But be sure to get a set of liners that are suitable for the type of soil you have, as these can be bulky if you have a curved design.

Whether you’re using a metal or a wood-raised bed, it’s worth lining it to avoid weeds and keep the soil in your bed. The liner helps retain heat from the daytime sun, preventing damage from frosts and late spring frosts. Plus, it keeps the soil from drying out in the hot summer.


Gardening blogger

Meet Even, a distinguished collaborator at Green Giant. With over a decade of hands-on experience in the niche of raised garden bed cultivation, she brings an unparalleled depth of knowledge to our team. Her expertise, honed over years of experimental gardening, provides an insightful perspective on the practicalities and nuances of this unique form of horticulture.

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