Gallery Wall Frames Spacing Calculator
Calculate equal edge gaps between gallery-wall frames in a row spanning the available width.
How to use Gallery Wall Frames Spacing Calculator
1. Enter Available Width, Item Width, Number of Items. Use the matching measurement or purchase unit. 2. Use at least two equal-width items. The outer edges span the available width, with no side margins. Centre-to-centre distance is item width plus the gap. Widths describe the frames’ outer edges. The row model does not locate hanging hooks or allow for mixed frame widths and vertical offsets. 3. Select Calculate or press Enter to see equal gap size. 4. Select Select Copy result to copy the answer, or Reset to clear the form.
Why use this tool?
Use this calculator to plan a horizontal row of frames. Widths describe the frames’ outer edges. The row model does not locate hanging hooks or allow for mixed frame widths and vertical offsets.
How the calculation works
Equal gap = (available width − item width × count) ÷ (count − 1). Use at least two equal-width items. The outer edges span the available width, with no side margins. Centre-to-centre distance is item width plus the gap. Widths describe the frames’ outer edges. The row model does not locate hanging hooks or allow for mixed frame widths and vertical offsets. Counts and comparisons use exact entered decimals. Other dimensions display up to six decimal places, with scientific notation for smaller nonzero results. Input and result magnitudes are limited to 9,007,199,254,740,991. Currency uses the selected currency’s minor unit.
Example
Gallery Wall Frames example: Four 40 cm items in 200 cm leave 40 cm split among three internal gaps: 13.333333 cm each.
Practical tip
Use each frame’s full outer width. For mixed widths, add those widths first and plan the remaining gaps separately.
Frequently asked questions
What does this result include?
Use at least two equal-width items. The outer edges span the available width, with no side margins. Centre-to-centre distance is item width plus the gap.
Does this choose the right installation or allowance?
Widths describe the frames’ outer edges. The row model does not locate hanging hooks or allow for mixed frame widths and vertical offsets.
How should I interpret rounding and units?
Whole purchase counts round up and maximum fit counts round down using the entered decimals exactly. Other dimensions use up to six decimal places; smaller nonzero results use scientific notation. Currency rounds to its minor unit, with smaller positive costs labelled explicitly. Unit selectors describe the input unit; changing one does not convert entered values.