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Calcimator

Drawer Slide Calculator

Calculate drawer box dimensions for your cabinet opening and slide type. Get exact width, height, and depth including clearances for full-extension, undermount, or center-mount slides.

Inputs

in
in
in

Results

Drawer Box Width

14 in

≈ 4 credit cards

Drawer Box Height

5 in

Drawer Box Depth

21 in

≈ 6 credit cards

Slide Length to Buy20 in
Clearance per Side0.5 in
Interior Usable Height4.5 in
How to Use This Calculator
  1. Enter Opening Width, Opening Height, and Slide Type.
  2. Set Cabinet Depth.
  3. Review Drawer Box Width (in), Drawer Box Height (in), and Drawer Box Depth (in).
  4. Use Slide Length to Buy (in) and Clearance per Side (in) to inform your decision.
  5. Use the chart to visualize the results and explore different scenarios by adjusting inputs.

How the result changes with Opening Width

Opening WidthDrawer Box WidthDrawer Box HeightDrawer Box Depth
109 in5 in21 in
2120 in5 in21 in
3332 in5 in21 in
4443 in5 in21 in

What each input means

Opening Width
Inside width of the cabinet face frame opening
Opening Height
Inside height of the cabinet face frame opening
Slide Type
1=Full-extension (side-mount), 2=Undermount, 3=Center-mount
Cabinet Depth
Interior depth of the cabinet from face frame to back panel

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Opening Width = 15, Opening Height = 6, Slide Type = 1, Cabinet Depth = 22 = 4 input(s) provided
  2. Calculate Drawer Box Width
    Drawer Box Width
    14 = 14
  3. Calculate Drawer Box Height
    Drawer Box Height
    5 = 5
  4. Calculate Drawer Box Depth
    Drawer Box Depth
    21 = 21
  5. Calculate Slide Length to Buy
    Slide Length to Buy
    20 = 20
  6. Calculate Clearance per Side
    Clearance per Side
    0.5 = 0.5

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