How to Make a Garden Bench with Concrete Blocks and a Piece of Wood

A vacant corner of the garden can be given a useful purpose without the need for complicated construction. Concrete blocks and a piece of wood can provide the foundation for a straightforward outdoor bench, provided the arrangement is placed on firm ground and is stable enough for use. It is a practical option for anyone wanting to make use of materials already available at home.

How do concrete blocks and wood make a bench?

The design is fairly straightforward: the blocks act as supports at either side, and the timber is laid across them to form the seat. The number and placement of the components will depend on the size of the wood and the weight the bench is expected to carry.

Before assembly, select strong timber that is in good condition. Cracked, rotten or overly thin pieces are not suitable for supporting people, even where the blocks are secure.

How should the area be prepared before assembling the bench?

The ground should be reasonably level and able to bear the weight of the structure without sinking. In garden areas where the soil is particularly loose or uneven, the blocks may shift over time and affect the bench's stability.

Set the supports on a solid surface and check that they are level before laying the wood in place. An uneven base can cause the seat to wobble, so it is worth levelling the ground before completing the assembly.

How should the wood be placed on the concrete blocks?

The wood needs to rest evenly on the blocks, which should be arranged so that the seat does not have a large unsupported section. The size of the piece will determine the appropriate distance between the supports.

Once the wood is in position, carefully test the bench for stability before using it. If the blocks move, the seat tilts or any part shifts, do not use the structure until the issue has been corrected.

Does wood used for a garden bench need protection?

Yes. Timber used outdoors is exposed to rain, moisture, sunlight and changes in temperature. Without suitable protection, it may absorb water, split or begin to rot over time.

A product designed for outdoor use can help safeguard the piece, as long as it is suitable for that type of wood. It is also important to keep the seat away from places where water tends to collect, helping the material dry after rain.