construction calculator

Flooring Calculator

Estimate boxes of laminate, vinyl, or tile needed for a room so you can plan coverage and waste more realistically.

Estimate

Enter job values, review the estimate, then use the decision hints before ordering or quoting.

Estimate Results

Enter values to see the result.

Context

Floor area + 10% waste (standard for cuts and mistakes). Most boxes cover 20–25 sq ft.

Next Step

Installing new laminate or LVP flooring
Tiling a bathroom or kitchen
Planning a full-house flooring project

Check

Forgetting waste around edges and doors
Using room dimensions without subtracting cabinets

Reference

lengthwidthareaboxes
152033017
121823812

Example

15 ft × 20 ft room → 330 sq ft with waste → 17 boxes (20 sq ft each)
12 ft × 18 ft kitchen → 238 sq ft → 12 boxes

Formula

Total Area = (Length × Width) × 1.10

10% waste is standard for straight layouts. Add 15% for diagonal or complex rooms.

Most laminate boxes cover 20–25 sq ft

Next Step

Next Calc

Drywall Calculator

Estimate 4×8 drywall sheets for a room or wall so you can plan coverage, cuts, and a small waste allowance.

Next Calc

Paint Calculator

Estimate paint from room dimensions, coat count, and opening area so you can buy once and finish the job.

Next Calc

Brick & Mortar Calculator

Estimate bricks and mortar for a wall build so you can plan quantities before final layout and waste adjustments.

System note: validate this estimate against local code and supplier requirements before ordering.

FAQ

How much waste should I add?

10% straight, 15% diagonal or complex rooms.

Do I subtract furniture or cabinets?

No — flooring goes under them, but subtract built-in islands if they stay.

Important Use Notice

Planning calculator only. Do not rely on this page alone for structural design, permitting, code compliance, engineering signoff, procurement quantities, or contractual commitments.