The size of this block is 190x190x80mm The Janus Block is the same as the Vitrablok wave block, but has an obscure face to one side - perfect for offering maximum light transmission but privacy, such as in bathrooms.

The obscure face is achieved by having the inside of one side of the block stippled.

It is most common to have the obscure side of the block to the outside of the building in the glass block panel being laid as it looks better from the outside, and give more space visually from within the room that the panel is in.

When using this block in pre-assembled panels ordered from us - we will be laying the blocks in this style unless requested otherwise.