Pressure-treated wood is not necessary unless you want to paint the cinder blocks. If you choose not to paint the blocks, you will need pressure-treated 4x4s to assist prevent rotting. Kiln-dried Douglas pine was what I utilized.

Since they will be in touch with the ground or persistent wetness when painted, pressure-treating them is not essential since it may take weeks for them to dry enough to be ready for staining.
A sprayer is also not necessary. Although a sprayer saves time, paint is wasted. A brush or roller may be used. I’ve discovered that using both together works best; the brush is necessary to reach the crevices.

In the unlikely event that you need to make room for a normal cinder block, which is advertised as measuring 16 x 8 x 8, in reality, it is 15 ⅝” x 7 ⅝” x 7 ⅝”. The 4x4s will measure around 3½” by 3½” and the inner holes are at least 5×5″.

A power washer is great for cleaning, but all you need is a bucket and a nylon scrub brush if you don’t have one.

Conventional cinder bricks are designed for horizontal stacking. The areas around the hole openings vary somewhat on each side.

Longer holes and thinner edges are found on one side, whereas shorter apertures and thicker, neater edges are found on the other. This, in my opinion, is the more attractive side.

When building the bench, you should be aware of this from an aesthetic standpoint. I’ll make reference to these edges in the procedures that follow.

nice outdoor chairs made from cinder blocks by yourself Timing:

If you want to conduct this outdoors, you should ideally have three or four straight days without rain. It may be completed in three days, but you will need to maintain strict time.

After cleaning the blocks, you’ll need to account for drying periods, priming, flipping the blocks, painting, flipping, and repeating for one more coat.

Why Are The Cinder Blocks Painted?