Interlocking blocks for modular structures

A modular building device for use in building a modular structure, the modular building device comprising:

• a first support panel and a second support panel positioned substantially parallel to one another, each of the first support panel and the second support panel comprising:
• a rigid body having an outer surface and an inner surface, the outer surface being opposite the inner surface, the rigid body defining a plurality of receiving ports;
• and
• a fastener connecting element configured to receive a fastener, the fastener configured to connect the first support panel and the second support panel in operative connection with the fastener connecting element;
• and
• a connecting member connecting at one of the one or more receiving ports between the first support panel and the second support panel, the connecting member comprising:
• a connection body;
• a first arm extending from the connection body in a first direction, the first arm comprising of a width, the first support panel being separated by the first arm width from the second support panel;
• and
• a second arm extending from the connection body in a second direction, wherein the connection body connects with and separates the first arm and the second arm, the connection body being configured to position the first arm in the first direction and the second arm in the second direction, the first arm and the second arm having an interconnecting extension, the interconnecting extension from the first arm configured to connect to the receiving ports of the first support panel and the second support panel.