Framing Depth

To determine the frame depth that you need for your art package add up the components you are using including the depth of the actual art. This will allow you to determine which frames are deep enough to accommodate your artwork package.

The rabbet depth is the amount of space in the frame to accommodate the artwork package. All Metropolitan frames have the rabbet depth dimension illustrated in the product section.

Common Framing Component Depths

Component Fraction Decimal
4 ply museum board 1/16 0.062
2mm glass 5/64 0.078
.100 acrylic/2.5 mm glass 3/32 0.093
1/8 foamboard/acrylic 1/8 0.125
3/16″ foamboard 3/16 0.1875
Standard stretcher bars 3/4 0.750
Oversize stretcher bars 1 1/4 1.250
1/2″ spacers 1/2 0.500
3/4″ spacers 3/4 0.750

The following chart outlines the depth needed for the most common framing presentations.

Presentation style

Depth requirements

Mat presentation:
Glazing
4 ply rag mat,
4 ply rag backing board
Foamboard filler board
All Metropolitan profiles have needed depth
Plus strainer Metropolitan profile 106 or deeper is required.
Overmount presentation:
Glazing
1/2″ spacer
4 ply rag board backing
Foamboard backing
Metropolitan profile 114 or deeper is required.
Plus strainer Metropolitan profile 101 or deeper is required.
Overmount presentation:
Glazing
3/4″ spacer
4 ply rag board backing
Foamboard backing
Metropolitan profile 106 or deeper is required.
Plus strainer Metropolitan profile 115 or deeper is required.