Flooring Calculator Widget
Embed a flooring calculator for laminate, luxury vinyl plank and engineered wood. Shoppers enter their rooms and the coverage printed on the box, pick straight, diagonal or herringbone lay, and see the boxes to buy, the area they are paying for and the total price.
Live preview
Under the widget on your page: Powered by A2Z Tools
Embed code
<iframe src="https://a2z.tools/embed/w/flooring-calculator" title="Flooring Calculator by A2Z Tools" width="100%" height="820" style="border:0;width:100%" loading="lazy" allow="clipboard-write"></iframe>
A plain iframe. Works everywhere, including site builders that strip scripts. Adjust height if your content needs more room.
<div data-a2z-widget="flooring-calculator" data-height="820"></div> <script async src="https://a2z.tools/embed.js"></script>
Adds a small script (what it does) that sizes the widget to fit its content, loads it lazily and keeps it isolated from your page's CSS.
Works with
How it works
Plank flooring is sold by the box, and every box states how many square metres or square feet it covers, so the widget works from coverage rather than from individual plank sizes. It adds up to two rooms, increases the floor area by the waste for the chosen pattern - 10% for straight lay, 15% for diagonal or herringbone, or a custom figure - and divides by the coverage, rounding up to whole boxes. Because boxes come in fixed sizes, the area you actually pay for is boxes x coverage: for a 20 m² room with 2.13 m² boxes that is 11 boxes and 23.43 m², leaving 3.43 m² over. The price can be entered per square metre or foot (charged on the area bought) or per box. Underlay, skirting and transition strips are deliberately left out so the price shown is for the boxes alone.
Calculation method
- Floor area = room 1 length x width + room 2 length x width
- Area to cover = floor area x (1 + waste / 100); waste = 10% straight, 15% diagonal, 15% herringbone, or custom
- Boxes = ceil(area to cover / coverage per box)
- Area bought = boxes x coverage; left over = area bought - floor area
- Cost = area bought x price per area, or boxes x price per box
Worked examples
Living room in laminate
Inputs: 5 x 4 m; 2.13 m² per box; straight lay; 25 per m²
Result: 11 boxes, 23.43 m² bought, cost 585.75
20 m² x 1.10 = 22 m²; / 2.13 = 10.33, rounded up to 11 boxes; 11 x 2.13 x 25 = 585.75.
Bedroom and hall in feet, diagonal
Inputs: 16 x 13 ft plus 10 x 4 ft; 22.5 sq ft per box; diagonal (15%)
Result: 13 boxes, 292.5 sq ft bought
208 + 40 = 248 sq ft; x 1.15 = 285.2; / 22.5 = 12.68, rounded up to 13.
Limitations
- Rectangular rooms only; split other shapes into rectangles and add them.
- Waste is a percentage, not a plank-by-plank layout, so a room with many cut-outs may need more.
- Underlay, moisture barrier, trims, adhesive and labour are not included in the cost.
Where publishers use it
- Flooring retailers' product pages, preset to the box coverage of each line
- Laminate and LVP installation guides for homeowners
- Flooring fitters' websites that quote on materials plus labour
- Landlord and property-management blogs budgeting a flat turnover
- Home-show and interior-design articles comparing finishes by price
Questions
How is this different from a tile calculator?
Planks are bought in boxes with a printed coverage, so this widget divides area by coverage per box. A tile calculator counts individual tiles from their size and grout joint. Use this one for laminate, vinyl plank, engineered and solid wood.
How much waste should I allow for flooring?
About 10% for a straight lay in a regular room, 15% for diagonal or herringbone because every row ends in an angled cut, and a little more for rooms with many doorways or bays. Experienced fitters in a simple rectangle sometimes manage 5-7%.
Why am I paying for more area than my room?
Boxes cannot be split. A 20 m² room plus 10% needs 22 m²; at 2.13 m² per box that is 10.33 boxes, so you buy 11 boxes and 23.43 m².
Should I keep the leftover planks?
Keep at least part of a box. Colours and click profiles change between production runs, so a damaged plank in a few years is far easier to replace from your own spares.
Do I include closets and hallways?
Yes - measure every area that will get the same floor and add it as the second room, or add its area to the first room's dimensions. Leave out areas under fitted kitchen units if the floor will not run under them.
How long should flooring acclimatise before fitting?
Solid and engineered wood and many laminates must sit in the room, boxes unopened or opened per the maker's instructions, for 24-72 hours so they reach the room's temperature and humidity. Check the installation sheet - acclimatisation is often a warranty condition.
Do I need an expansion gap?
Floating floors expand and contract with humidity, so most makers ask for a gap of about 8-12 mm (5/16-1/2 in) at walls, pipes and thresholds, hidden by skirting or quarter-round. It does not change the box count but it does affect the trims you buy.
Cite or recommend this tool
If you reference this tool in an article, course or documentation, these formats are ready to copy. They are optional - nothing is added to your site unless you paste it.
A2Z Tools Flooring Calculator https://a2z.tools/embed/flooring-calculator
<a href="https://a2z.tools/embed/flooring-calculator">A2Z Tools Flooring Calculator</a>
[A2Z Tools Flooring Calculator](https://a2z.tools/embed/flooring-calculator)
Flooring Calculator by A2Z Tools - https://a2z.tools/embed/flooring-calculator
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