Articles & Advice > Door Size Calculator – Find Your Opening / Trim Size

Door Size Calculator – Find Your Opening / Trim Size

Calculate Your Door Trim/Opening Size

Door Type

Jamb Type

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Single Door

Enter the door leaf size

Door Leaf Width(Required)

Standard sizes are 410, 460, 510, 560, 610, 660, 710, 760, 810, 860, 910 (mm)

Door Leaf Height(Required)

Please enter a number from 400 to 3000.

Standard Heights are 1980, 2200, 2400 (mm)

Your Required Trim / Opening Size

Opening/Trim Width:

Opening/Trim Height:

Opening/Trim Width:

Opening/Trim Height:

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Double Door

Enter the door leaf size

Individual Door Leaf Width(Required)

Standard sizes are 410, 460, 510, 560, 610, 660, 710, 760, 810, 860, 910 (mm)

Individual Door Leaf Height(Required)

Please enter a number from 1600 to 3000.

Standard Heights are 1980, 2200, 2400 (mm)

Your Required Trim / Opening Size

Opening/Trim Width:

Opening/Trim Height:

Opening/Trim Width:

Opening/Trim Height:

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Cavity Slider

Enter the door leaf size

Individual Door Leaf Width(Required)

Standard sizes are 410, 460, 510, 560, 610, 660, 710, 760, 810, 860, 910 (mm)

Individual Door Leaf Height(Required)

Please enter a number from 1600 to 3000.

Standard Heights are 1980, 2200, 2400 (mm)

Your Required Trim / Opening Size

Opening/Trim Width:

Opening/Trim Height:

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Double Cavity Slider

Opening/Trim Width:

Opening/Trim Height:

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Double Robemaker

Enter the door leaf size

Individual Door Leaf Width(Required)

Standard sizes are 410, 460, 510, 560, 610, 660, 710, 760, 810, 860, 910 (mm)

Individual Door Leaf Height(Required)

Please enter a number from 1600 to 3000.

Standard Heights are 1980, 2200, 2400 (mm)

Your Required Trim / Opening Size

Opening/Trim Width:

Opening/Trim Height:

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Tripple Robemaker

Enter the door leaf size

Individual Door Leaf Width(Required)

Standard sizes are 410, 460, 510, 560, 610, 660, 710, 760, 810, 860, 910 (mm)

Individual Door Leaf Height(Required)

Please enter a number from 1600 to 3000.

Standard Heights are 1980, 2200, 2400 (mm)

Your Required Trim / Opening Size

Opening/Trim Width:

Opening/Trim Height:

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2 Door Multi Bifold

Enter the door leaf size

Individual Door Leaf Width(Required)

Standard sizes are 410, 460, 510, 560, 610, 660, 710, 760, 810, 860, 910 (mm)

Individual Door Leaf Height(Required)

Please enter a number from 1600 to 3000.

Standard Heights are 1980, 2200, 2400 (mm)

Your Required Trim / Opening Size

Opening/Trim Width:

Opening/Trim Height:

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4 Door Multi Bifold

Opening/Trim Width:

Opening/Trim Height:

This height will result in at 27.5mm gap under the door (allowing room for carpet and underlay). Adjust the opening height depending on your flooring to ensure the door fits as intended.