MetraNestMeasure the outside of each frame
Use the overall width and height, including the moulding. The size of the image inside is not enough. All frames must have the same dimensions and orientation in this model, which is limited to six rows and six columns.
Set two separate gaps
The horizontal gap separates two columns and the vertical gap separates two rows. No extra gap is added outside the group. With a single row, the vertical gap does not change the result; the same rule applies to a single column.
Measure coordinates from one common origin
The left position is measured from the left edge of the area, and the top position from its upper edge. Frames are numbered row by row. The remaining margins are equal on opposite sides. Use paper templates to check the arrangement before measuring the hangers.
Grid width = columns × frame width + (columns − 1) × horizontal gap. Use the same formula with rows for the height. Margin = (available dimension − grid dimension) ÷ 2. Each position adds the preceding widths or heights and gaps.
Six frames in two rows of three
Six 30 × 40 cm frames with 10 cm gaps form a 110 × 90 cm grid. In a 200 × 160 cm area, the margins are 45 cm on the sides and 35 cm at the top and bottom. The left positions are 45, 85 and 125 cm; the top positions are 35 and 85 cm.
Details to check
- Choose an origin that is easy to locate again on the wall.
- Check the frame moulding dimensions.
- Measure the hangers separately.
Frequently asked questions
Do the coordinates show where to drill?
No. They locate the frame edges. The fixing position depends on each frame’s hangers and cannot be inferred from this calculation.
Can I mix different frames?
This model uses a regular grid of identical frames. Different dimensions require an individual layout.
A method you can check · Content review :
Each tool shows its formulas and assumptions. Worked examples let you repeat the calculation and understand how rounding works.