How Much Does It Cost to Carpet a 18x18 Room?
Updated July 2026 · Pricing data from Floormath's flooring cost model
At 18 feet by 18 feet, you're covering 324 square feet. Across the 7 carpet product tiers in Floormath's pricing model, a professionally installed job in this room costs $930–$7,784. The typical mid-range project comes in around $2,183.
Cost by carpet product tier for a 18x18 room
| Product tier | Material | Installed range | Typical total |
|---|---|---|---|
| Polyester Cut-Pile Carpet | $1.69/sf | $930–$1,814 | $1,283 |
| Berber Loop-Pile Carpet | $3.29/sf | $1,323–$2,794 | $1,934 |
| Frieze / Twist Carpet | $3.79/sf | $1,501–$2,972 | $2,112 |
| Nylon Cut-Pile Carpet | $3.99/sf | $1,573–$3,151 | $2,183 |
| Triexta Pet-Friendly Carpet | $4.49/sf | $1,751–$3,329 | $2,362 |
| Pet-Proof Performance Carpet | $6.49/sf | $2,358–$4,309 | $3,155 |
| Wool Carpet — Luxury | $9.99/sf | $2,966–$7,784 | $4,484 |
Totals include 10% material waste and professional installation. Carpet rows include a standard rebond pad at $0.60/sf.
Where the money goes at 324 sq ft
Three inputs set your total. Tier ($0.89 to $18.99/sf material across the lineup) is the lever you control. Labor — around $567 for a mid-range install in this room — is set by your local market. And waste: installers order 10% over, which these numbers already include, so the table above is the check-out price, not a teaser.
See your exact 18x18 room cost with your state's labor rates
Run the free calculator →Frequently asked questions
Does the price include installation?
Yes — every figure on this page includes materials with 10% waste plus professional installation labor at national-average rates. Old floor removal, subfloor repair, and stairs are extra.
How much does old floor removal add for this room?
Demolition and haul-away typically run $0.60–$1.50/sf — about $194–$486 for a 18x18 room, depending on what's coming out and local disposal fees.
How many square feet is a 18x18 room?
A 18x18 room is 324 square feet (18 × 18 = 324). Flooring installers order about 10% extra for cuts and waste, so plan on purchasing roughly 356 sq ft of material.