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Free planning tool

Kitchen & Cabinet Sizer

Check the space, the opening and a product’s dimensions. Get an explained result you can print or save.

Let’s measure your space.

Empty the space first. Measure its narrowest points. All dimensions are internal. Measuring guide ↗

01 / Your cabinet

For a drawer, use the clear route into the drawer as the opening and the lowest closing-path height as the clear height.

02 / Obstructions & allowance

Measure one continuous empty rectangular box beside all obstructions, with a clear route from the opening. Leave blank if you cannot confirm it. Do not combine disconnected gaps.

We reserve twice this amount on every axis. The starting 0.5 cm is a planning allowance, not a manufacturer requirement. Increase it if the instructions require more.

03 / What are you checking?

Pull-out mechanisms need installation and travel checks beyond this tool. No automatic installation approval is provided.

Check a product’s own dimensions (optional)

Enter all three assembled outer dimensions for a fixed, upright product. Include handles and feet. Leave all three blank to get space limits only.

Calculations stay in this tab. We do not upload or save your dimensions.

Your space, explained

A clearer picture of what fits.

WidthHeightDepthMeasure inside. Check the opening.

Diagram is illustrative, not to scale.

Enter your measurements to see your comparison limits and any checks still needed.

A useful fit check includes the opening, not just the inside of the cabinet.

How the calculation works

Maximum width is the smaller of internal width and opening width, minus two clearance allowances. Maximum depth is internal depth minus two allowances. Maximum height is the smaller of internal height and opening height, minus two allowances. A measured obstruction-free box further limits each dimension.

All comparisons use millimetres; 1 inch = 25.4 mm exactly. A remaining margin of 2 mm or less is labelled “Possibly fits / Check clearance”. This is an interface caution threshold, not a manufacturing tolerance. Published dimensions can be rounded.

What “Fits” means: dimensions pass this fixed, upright rectangular comparison with the allowance you entered. It does not certify installation, safety, load capacity, diagonal insertion, pull-out travel or physical fit. Unmeasured obstructions require manual measurement.

Common questions

Why does a product fit inside but fail the check?

The opening may be narrower than the interior, or your clearance allowance may reduce the space. The result never assumes you can remove a door or assemble the product inside.

Can I use it under a sink?

Yes, as a planning aid for one measured clear box. If pipe or hardware checks are unknown, it will not give an automatic fit. It does not model pipe cut-outs or check valve access.

Where are prices and budget filters?

We do not have verified live prices. Set your own spending limit, then check price, delivery and returns at the local retailer. We do not filter products using invented or stale price data.

Read the full measuring guide →