SH Window Size Chart Converter

How to use it
  1. Choose the window size code.
  2. The single-hung window’s frame size, masonry opening and clear opening appear in the results.

Sizes marked with an “*” have a clear opening that meets the usual emergency escape minimums; see the note under the chart.

For the code default U-factor and SHGC of a window, use the U-factor and SHGC default values lookup; to compare heating and cooling equipment efficiencies, use the efficiency converter.

Sizes

Choose a window size code.

Width × height. Sizes vary slightly between manufacturers; verify the actual dimensions with the one you use.

Architects and engineers often use an abbreviated nomenclature to denote the size of single-hung windows. Measurements vary slightly between manufacturers, so use this converter as a general guide to window frame, masonry opening and clear opening sizes. For the most accurate results, verify the actual dimensions with the manufacturer.

Single-hung window size chart

Width × height, in inches.

Size codeFrame sizeMasonry openingClear opening
SH 1219.125 × 2620.125 × 2714.375 × 7
SH 1319.125 × 38.37520.125 × 39.37514.375 × 13.1875
SH 1419.125 × 50.62520.125 × 51.62514.375 × 19.3125
SH 1519.125 × 6320.125 × 6414.375 × 25.5
SH 1619.125 × 74.2520.125 × 75.2514.375 × 31.125
SH 2237 × 2638 × 2732.25 × 7
SH 2337 × 38.37538 × 39.37532.25 × 13.1875
SH 2437 × 50.62538 × 51.62532.25 × 19.3125
SH 25*37 × 6338 × 6432.25 × 25.5
SH 26*37 × 74.2538 × 75.2532.25 × 31.125
SH 3253.125 × 2654.125 × 2748.375 × 7
SH 3353.125 × 38.37554.125 × 39.37548.375 × 13.1875
SH 3453.125 × 50.62554.125 × 51.62548.375 × 19.3125
SH 35*53.125 × 6354.125 × 6448.375 × 25.5
SH 36*53.125 × 74.2554.125 × 75.2548.375 × 31.125
SH H3226.5 × 2627.5 × 2721.75 × 7
SH H3326.5 × 38.37527.5 × 39.37521.75 × 13.1875
SH H3426.5 × 50.62527.5 × 51.62521.75 × 19.3125
SH H3526.5 × 6327.5 × 6421.75 × 25.5
SH H3626.5 × 74.2527.5 × 75.2521.75 × 31.125

* Clear opening meets the usual emergency escape minimums (5.7 ft², 24 in. high, 20 in. wide). Confirm the manufacturer's net clear opening, the sill height (44 in. max) and your local code.

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