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Floor Quantity Calculator

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  • Since flooring is sold in boxes, you must purchase it rounded up to the box unit to cover the calculated quantity of individual sheets.
  • For standard stepped installations, a margin of 5% is required, while for herringbone or chevron pattern installations, you must allow at least 10-15% due to significant cutting loss.
  • For accuracy, you must enter the actual width and length (mm] of the construction space measured with a tape measure, rather than the apartment's supply area (square footage].
  • Since the number of sheets per box (stock quantity] and specifications vary by brand, please be sure to check the detailed specifications of the product you intend to purchase.
  • To make the space appear wider, the installation direction should generally be parallel to the windows (daylight] or extend long when viewed from the entrance.

How about this calculator?

Flooring Quantity Calculator, Guide to Calculating Box Quantities for Engineered Wood, Laminate, and Solid Wood Flooring

Flooring is a construction process characterized by high proportions of material and labor costs. If construction is halted due to a shortage of materials, additional labor costs will be incurred, while excessive surplus can result in burdensome return shipping fees. This calculator precisely determines the actual quantity of materials required and the number of boxes to order by inputting the floor area to be installed, the specifications of a single floorboard, and the packaging quantity per box.

Floor Quantity Calculation Formula

The key to flooring is the conversion between pyeong (3.3㎡] and box units.

Total number of sheets required
Required Quantity (pieces] = {(Construction Area Width × Length] ÷ (Floor Width × Floor Length]} × (1 + Markup Rate / 100]
Order box quantity
Order Box = Total Sheets Required ÷ Quantity per Box

Since Maru is shipped only in box units, the calculated number of pieces is divided by the quantity per box, and decimal points are always rounded up.

Detailed Guide to Calculator Input Items

Please check each item for accurate material calculation.

1. Construction area width and length

Enter the width and length of the floor in the space to be floored in mm. If there are multiple rooms, add up the areas of each room or subtract the bathroom and veranda from the total area before entering.

2. Flooring material width, length

Enter the size of the single floorboard you wish to install. Standard engineered wood flooring is typically 95mm x 800mm, while wide plank flooring uses dimensions of 115mm or larger.

3. Quantity per box and markup rate

Enter the number of sheets per box and the loss rate. A markup rate of approximately 3–5% is recommended for standard installation, while it should be set higher at around 10–15% for herringbone installation.

Guide to Standard Specifications and Features by Flooring Type

type Standard specifications (mm] thickness Key Features
Engineered wood flooring (standard] 95 x 800 7.5 mm Adhesive installation, excellent thermal conductivity and durability
Wide plank engineered wood flooring 115~165 x 800~1200 7.5 mm A refreshing sense of openness that makes the space look spacious
laminate flooring 190 x 1200 8 mm Non-adhesive prefabricated, enables economical construction
solid wood flooring Diversity (mainly wide] 10~14 mm Luxurious finish with natural wood texture

Expert Practical Know-how & Checklist

This is a key point of on-site practical work that determines the quality of the finish.

  • Construction direction and lighting considerations

    Installing the flooring along the length from the entrance to the living room makes the space appear wider. Installing it parallel to the direction of the window light reduces seam shadows, resulting in a cleaner look.

  • Precautions for Herringbone Installation

    While the herringbone pattern is visually striking, it results in significant material loss (10–15%], requiring a more generous volume than standard installations. Labor costs are also higher than those for conventional methods.

  • Baseboard Installation Sequence

    Generally, the most commonly used method is to install the baseboards first, then insert the flooring, and finally finish with silicone, which provides the cleanest finish.

Frequently Asked Questions (FAQ]

  • Q. It's a 32-pyeong apartment. How many pyeong should I order?
  • A. It must be based on the actual exclusive floor area, not the saleable area. Typically, a 32-pyeong expanded apartment requires a quantity of approximately 28 to 30 pyeong in actual usable area.
  • Q. Can I return the remaining flooring boxes?
  • A. Returns are generally possible for unopened boxes, but individual sheets of material cannot be returned, so it is recommended to keep them for future repairs.
  • Q. Is the quantity calculation method the same even when doing overlay work?
  • A. Yes, the method for calculating the area is the same. However, if you add it on top of the existing floor, the floor will become higher, so the door may not close; therefore, it may be necessary to trim the bottom of the door.