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Gallery Wall Frames Required Width Calculator

Calculate the total width required for gallery-wall frames from equal item widths and internal edge gaps.

How to use Gallery Wall Frames Required Width Calculator

1. Enter Item Count, Item Width, Desired Gap. Use the matching measurement or purchase unit. 2. Count must be a positive whole number. One item has no internal gap. Add outer margins separately. 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 required total width. 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

Required width = count × item width + (count − 1) × desired gap. Count must be a positive whole number. One item has no internal gap. Add outer margins separately. 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 with three 10 cm gaps require 190 cm.

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?

Count must be a positive whole number. One item has no internal gap. Add outer margins separately.

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.

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