Shoppers type square feet into the quantity box
A shopper who enters 168 may get 168 boxes in the cart, or abandons the cart when the total looks wrong.
SHOPERIZE PRICE CALCULATOR
Shopify flooring calculator
Room size in. Whole boxes out.
Flooring shoppers know their room is 12 × 14 ft. They don’t know that it means 10 boxes once waste and rounding are included. Shoperize Price Calculator does that math on your product page and adds the right number of boxes to the cart, with the room size kept on the line item.
PRICE CALCULATORPREVIEW
Natural Oak Plank20 sq ft per box · 10% waste · rounds up to whole boxes- Area to cover
- 168 sq ft
- With 10% waste
- 184.8 sq ft
- Boxes to add to cart
- 10
- Purchased coverage
- 200 sq ft
THE MATH
A 12 × 14 ft room, 20 sq ft boxes, 10% waste
Waste is added before dividing, and the result is rounded up once at the end. Rounding earlier stacks two margins and sells boxes nobody needed.
| Step | Calculation | Result |
|---|---|---|
| Room area | 12 × 14 | 168 sq ft |
| With 10% waste | 168 × 1.10 | 184.8 sq ft |
| Boxes needed | 184.8 ÷ 20 | 9.24 |
| Boxes in cart | round up | 10 boxes |
| Coverage purchased | 10 × 20 | 200 sq ft |
WHY IT MATTERSWhere flooring orders
Where flooring orders
go wrong.
Each of these ends in a short order, a return or a support ticket.
Orders without waste run short
A shopper who buys exactly 168 sq ft runs out on install day, and the reorder may come from a different production lot.
Size variants never fit the room
Variants like “100 sq ft” or “150 sq ft” force shoppers to pick the closest size, which is usually wrong.
SET IT UPLive on your product page
Live on your product page
without code.
The Free plan covers one published area calculator on up to three products. Pro adds unlimited calculators, collection assignment and quantity rules such as minimums and increments.
- Choose the Flooring and packages recipe.
- Enter the coverage of one box from the carton or spec sheet, for example 20 sq ft or 2.22 m².
- Set a waste allowance that is always added, or (on Pro) let shoppers opt in to it.
- Assign your flooring products, preview an exact multiple and a size just above it, then publish.
- In the theme editor, add the Shoperize Price Calculator app block near the add-to-cart button.
FLOORING CALCULATOR FAQGood questions.
Good questions.
Straight answers.
Can Shopify sell flooring by the square foot?
Shopify sells units, not area, so you sell the box as the product and calculate how many boxes a room needs. A calculator does that on the product page and adds the box quantity to the cart.
How much waste should a flooring calculator add?
Around 5% to 10% is common for straight plank layouts, and more for diagonal or herringbone. Use your manufacturer’s guidance and set the allowance per product.
Does it work in square metres?
Yes. Shoppers can switch between metric and imperial units, and the calculator converts the measurement rather than reinterpreting the number.
What if the shopper changes the quantity in the cart?
Purchased coverage follows the live cart quantity, so a shopper who drops from 10 to 9 boxes sees that 9 boxes cover 180 sq ft.