Guide · Calculator
Hybrid flooring calculator: how many packs do I need?
Enter the rooms, your allowances and the pack size printed on the box. The calculator adds waste once, to the total, and rounds up to whole packs, which is how the order is actually placed. The method underneath is explained step by step below it.
How the calculator works
The calculator follows the order most hard floor contractors use, and the same order the waste percentage guide explains in more detail:
- Add up every room, length times width.
- Add other allowances: the strip across each doorway, floor that runs under the kitchen kickboard, and recesses for the fridge and dishwasher.
- Add the stair product with its own extra allowance, because stairs waste far more than flat floor.
- Add your waste percentage to that total.
- Divide by the pack size and round up to a whole pack. Add a spare pack if that is your practice.
- Price the area of the packs you buy, not the net area of the rooms.
The same arithmetic works for hybrid, laminate, rigid core vinyl plank and engineered timber, because all of them are sold in packs (or cartons) with a fixed coverage printed on the label.
A worked example
Example only
The apartment, pack size and rate are made up to show the arithmetic. They are the figures the calculator starts with.
A two bedroom apartment has hybrid throughout, apart from the bathroom and laundry. From the plan:
| Space | Size (m) | Area (m²) |
|---|---|---|
| Living, kitchen and dining | 7.2 × 4.5 | 32.40 |
| Bedroom 1 | 3.6 × 3.4 | 12.24 |
| Bedroom 2 | 3.0 × 3.2 | 9.60 |
| Hall | 4.8 × 1.1 | 5.28 |
| Rooms | 59.52 |
Doorway strips, the kickboard recess and the fridge space add 0.90 m², so the floor to cover is 60.42 m². Then:
| Step | Figure |
|---|---|
| Floor including allowances | 60.42 m² |
| Plus 7% waste | 64.65 m² |
| Packs of 1.86 m² (64.65 ÷ 1.86 = 34.76), rounded up | 35 packs |
| Area you buy, 35 × 1.86 | 65.10 m² |
| Supply and install at $68.00 / m² | $4,426.80 |
With a spare pack the order is 36 packs, 66.96 m² and $4,553.28.
Why you round once, on the total
It is tempting to work each room out to packs and add them up. On this apartment that gives 19 packs for the living area, 8 and 6 for the bedrooms, 4 for the hall and 1 for the allowances: 38 packs instead of 35. Each room carries its own part pack, so the order grows by three packs, about $379 at this rate, without a single extra board going down. On a builder tender, that is often the margin between two quotes.
Rounding once also matches how the installer works. Offcuts from the living room start rows in the bedrooms, and the waste allowance covers the cuts across the whole job, not room by room.
Choosing the inputs
Pack size
Use the coverage printed on the pack for the exact range and colour you are quoting. Pack sizes vary between ranges from the same supplier, and between plank widths in the same range, so a figure remembered from the last job is a common source of short orders.
Waste
Many contractors start around 5% for open plan homes with long straight runs and 7% to 10% for plans with many small rooms, halls and robes. Herringbone and diagonal lays need much more. The best figure is the one your own installers prove right over a dozen jobs.
Allowances
Room rectangles leave out the floor in each doorway, under the kickboard and in appliance recesses. A common doorway allowance is a 10 cm strip across the width of every opening. The robes, recesses and kickboards guide shows how to measure the rest.
Stairs
Enter the stair product as measured (treads, risers and nosing) and an allowance for it. A 50% stair allowance is a common starting point, applied before the normal waste. The stairs guide explains how to measure each step.
What a calculator cannot tell you
A pack count is only as good as the rooms that go into it. The calculator does not know which rooms the selections put in hybrid, whether the plan revision is current, which way the boards run, or whether a bay window needs angled cuts that push the waste up. Those are the decisions that make a quote right or wrong, and they come from reading the plan carefully. The guide to quoting from builder plans covers them.
It also leaves out trims, underlay for products without one attached, moisture barriers and floor preparation. Price those as separate lines so the builder can see what is included.
Feet, square feet and cartons
Switch the units to feet and the calculator works in square feet, with the pack size as the carton coverage. In the US and Canada, hard flooring is usually sold by the carton with its coverage in square feet, and the arithmetic is identical: total the area, add waste, divide by the carton coverage and round up. One square metre is 10.764 sq ft, so the 1.86 m² pack in the example covers about 20.0 sq ft.
How Squaro does this
Squaro reads the floor plan and the selections, measures each room from the printed dimension strings, adds your doorway, kickboard and recess allowances, and then runs exactly this calculation with your waste, stair allowance, pack size and spare pack rule. The quote shows the area, the packs and the area bought on each line, and the estimator checks every line before it goes out. See flooring quoting software for the rules you can set.
Related reading
- Flooring waste percentage, and when to round up to packsChoosing a waste figure, applying it in the right order, and rounding to whole packs.
- How to do a vinyl plank takeoff from plansMeasuring LVP, perimeter trims, underlay and adhesive from a set of plans.
- How to price flooring installationBuilding a supply and install rate per square metre from your real costs.
Quote your next plan set with Squaro
Squaro is open to a small group of flooring contractors first. Tell us how you quote and we will set up your rules with you and run your first plan.
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