5 Magnetic Building Blocks Ideas to Try

Start with small, stable structures before building a larger world. These five magnetic building block ideas use simple cube arrangements that you can adapt to your theme. Counts below refer to equal-sized cubes; decorative pieces and the mix inside your selected pack may differ.

By MagniCubx · Updated October 31, 2026

1. A 3-by-3 platform — 9 cubes

Arrange three rows of three cubes on a flat surface. This nine-cube square becomes a base for a garden, a tiny plaza or a color pattern. Change the order of the colors without changing the shape.

2. A three-step staircase — 6 cubes

Place three cubes in a row. Add two cubes above the back two, then one cube on the highest end. You now have a compact three-level staircase. Keep it low and build on a firm tabletop.

3. A small pyramid — 14 cubes

Make a 3-by-3 base with nine cubes. Center a 2-by-2 layer of four cubes above it, then finish with one cube on top. Count each layer as you build: 9 + 4 + 1 = 14.

4. An open courtyard — 16 cubes

Outline a 5-by-5 square using only its outside edge. The perimeter uses 16 cubes, leaving a 3-by-3 open space in the center. Remove one edge cube to make a doorway, or add a second layer if your set has enough matching pieces.

5. A patterned floor — 24 cubes

Build a rectangle four cubes wide and six cubes long. Alternate two colors, arrange stripes or make a path through the middle. Try drawing the pattern on paper first, then matching it with the blocks.

Turn a simple shape into a scene

Combine the platform with the staircase, or place the pyramid inside a larger floor layout. If your pack does not include the colors shown in your plan, substitute another color. The shape can stay the same while the story changes.

How many pieces do you need?

Each individual starter idea above uses fewer than 48 equal-sized cubes. Your selected set may contain a varied assortment, so count the usable cubes before starting. A larger pack gives you more options for combining projects or adding landscape around them.

Before you begin

Follow the age rating and warnings supplied with your set. Supervise play, keep small parts away from children under 3 and stop using damaged blocks. Do not place blocks or magnets in the mouth.

Compare 48, 100 and 300-piece sets, learn about cubes versus tiles, or choose your MagniCubx set.