25mm Black Paint Box Frame with a 40mm internal spacer between the glazing and backing. Each box frame is supplied with clear acrylic glazing and MDF backing board. If required, you may select a coloured piece of mount card by clicking a colour on the chart below. The frame size relates to the size of the MDF backing inside the frame which will sit on top of the internal spacer.
The glazing will be spaced away from the backing by 40mm using a permanently fixed spacer.