Abstract: Interlocking construction blocks are provided, having a tongue and groove configuration, attachable together by pressing the tongue of one block into a groove of another block. Multiple blocks may be adapted to be interlocked together forming a structure, such as a wall. Blocks comprise first and second opposing sidewalls integrally connected together by first and second pairs of opposing connecting walls. The first and second sidewalls comprise a lower portion integrally connected to an upper portion. The lower portion comprises a pair of opposing lower portion sidewalls integrally connected to a pair of opposing lower end walls. The upper portion comprises a planar top surface, a pair of opposing upper portion sidewalls and a pair of opposing upper portion end walls integrally connected via upper portion angular walls. The upper portion sidewalls, upper portion end walls and upper angular walls may have a beveled or tapered surface.

Abstract: Interlocking construction blocks are provided, having a tongue and groove configuration, attachable together by pressing the tongue of one block into a groove of another block. Multiple blocks may be adapted to be interlocked together forming a structure, such as a wall. Blocks comprise first and second opposing sidewalls integrally connected together by first and second pairs of opposing connecting walls. The first and second sidewalls comprise a lower portion integrally connected to an upper portion. The lower portion comprises a pair of opposing lower portion sidewalls integrally connected to a pair of opposing lower end walls. The upper portion comprises a planar top surface, a pair of opposing upper portion sidewalls and a pair of opposing upper portion end walls integrally connected via upper portion angular walls. The upper portion sidewalls, upper portion end walls and upper angular walls may have a beveled or tapered surface.

Abstract: Interlocking construction blocks are provided, having a tongue and groove configuration, attachable together by pressing the tongue of one block into a groove of another block. Multiple blocks may be adapted to be interlocked together forming a structure, such as a wall. Blocks comprise first and second opposing sidewalls integrally connected together by first and second pairs of opposing connecting walls. The first and second sidewalls comprise a lower portion integrally connected to an upper portion. The lower portion comprises a pair of opposing lower portion sidewalls integrally connected to a pair of opposing lower end walls. The upper portion comprises a planar top surface, a pair of opposing upper portion sidewalls and a pair of opposing upper portion end walls integrally connected via upper portion angular walls. The upper portion sidewalls, upper portion end walls and upper angular walls may have a beveled or tapered surface.

Abstract: Interlocking construction blocks are provided, having a tongue and groove configuration, attachable together by pressing the tongue of one block into a groove of another block. Multiple blocks may be adapted to be interlocked together forming a structure, such as a wall. Blocks comprise first and second opposing sidewalls integrally connected together by first and second pairs of opposing connecting walls. The first and second sidewalls comprise a lower portion integrally connected to an upper portion. The lower portion comprises a pair of opposing lower portion sidewalls integrally connected to a pair of opposing lower end walls. The upper portion comprises a planar top surface, a pair of opposing upper portion sidewalls and a pair of opposing upper portion end walls integrally connected via upper portion angular walls. The upper portion sidewalls, upper portion end walls and upper angular walls may have a beveled or tapered surface.