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Estimates are planning aids verify quantities against your local codes and supplier quotes.

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  4. Flooring & Baseboard Trim Estimator
Flooring< 1 minFree to use

Flooring Calculator – Boxes, Waste & Trim Estimator

Enter room size, pick a flooring type and waste tier boxes, underlayment, and trim price themselves live.

ft
ft
sq ft
%
$
$/box
$
$/sq ft
$
$/16 ft

Labor (optional)

hrs
$
$/hr

Flooring cartons to order

16

BOXES

Bill of materials+5% waste

MaterialNetWasteOrder

Luxury vinyl plank cartons

20 sq ft/box · 315 sq ft gross

Net 300 sq ft · Waste +5%

300 sq ft+5%16 boxes

Acoustic underlayment

100 sq ft rolls

Net 300 sq ft · Waste +5%

300 sq ft+5%4 rolls

Baseboard 3½" colonial

16-ft sticks

Net 70 lin ft · Waste +10%

70 lin ft+10%5 sticks

Cost projection

Flooring 16 × $55.00$880.00
Underlayment 4 × $45.00$180.00
Trim 5 × $18.00$90.00
Total$1,150.00

Saved on this device · No account · No cloud

Total · $1,150.00

16 boxes

About this tool

Cut waste follows the layout: 5% straight plank, 10% angle/herringbone, 15% diagonal.

How to use

Enter room size, pick a flooring type and waste tier boxes, underlayment, and trim price themselves live.

How the math works

Underlayment rolls are 100 sq ft; baseboard comes in 16-ft sticks with 10% for corners and cuts.

Enter L × W (not just sq ft) to unlock the perimeter trim calculation.

Formula

Boxes = area × waste ÷ box size

Common questions

▸How many boxes of laminate flooring do I need?

For 300 sq ft with 5% waste you need 315 sq ft of material; divided by 20 sq ft per box and rounded up, that is 16 boxes.

▸How do you calculate flooring waste?

Add 5% for straight plank layouts, 10% for angled patterns or irregular rooms, and 15% for diagonal layouts. Multiply net area by (1 + waste), divide by box coverage, and round up.

▸How much baseboard do I need?

Perimeter is 2 x (length + width); add 10% for corners and cuts, divide by 16-ft stick length, and round up to whole sticks.

▸How much underlayment do I need?

Underlayment rolls cover 100 sq ft each — divide your waste-adjusted floor area by 100 and round up to full rolls.

▸Should I enter length and width or just square footage?

Enter L x W, not just total square feet. The tool needs both dimensions to compute the room perimeter for the baseboard trim calculation.

Keep estimating

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