Estimate your 2026 Seattle flooring install. The calculator prices laminate, luxury vinyl plank, engineered and solid hardwood, ceramic and porcelain tile, and carpet — material, labor, subfloor prep, waste factor, and disposal of your existing floor — so you're comparing apples-to-apples when you get bids. Solid hardwood and laminate are priced too, so you can weigh all seven materials against each other.
This calculator prices seven materials: mid-grade laminate, standard and premium luxury vinyl plank (LVP) which is fully waterproof, engineered hardwood, prefinished solid oak, ceramic tile, porcelain tile, and carpet.
Installed cost on an 800 sq ft area with standard underlayment: laminate about $5.45 per sq ft, carpet about $6.20, standard LVP about $7.15, premium LVP about $8.55, ceramic tile about $11.40, solid oak and engineered hardwood about $12.35, and porcelain tile about $13.30.
Kolmo prices these deliberately about 5% under the Seattle market rate for the same scope, so the calculator should read low against other bids rather than high.
Installation labor cost is banded by how the material goes down: $2.60 per sq ft for floating and stretch-in goods (laminate, LVP, carpet), $4 per sq ft for engineered hardwood, and $7 per sq ft for the thinset and nail-down trades — ceramic and porcelain tile and solid hardwood.
The waste factor is tiered by material: 10% for laminate, LVP and carpet, 12% for engineered hardwood plank, and 15% for tile and solid hardwood, which take more cuts and more breakage. On 800 sq ft that means 881, 897 or 920 sq ft is ordered and billed.
Tearing out and disposing of an existing floor adds $1.50 per sq ft to the cost. Subfloor preparation, when you select it, bills at $50 per hour and runs about 1.25 hours per 100 sq ft — roughly $0.63 per sq ft.
Carpet is quoted at an installed price of $5.06 per sq ft, so it carries no separate installation-labor line.
Tile estimates include a thinset, grout and supplies allowance calculated as 3% of the tile material cost. Waterproofing membrane under tile is not priced by the calculator and is quoted separately when the room needs one.
Small jobs are raised to a $1,500 mobilization minimum, shown as its own line item. A 100 sq ft tile bathroom floor prices at that minimum.
Solid hardwood is priced prefinished. Site-finishing — sanding and three coats in place — is not modelled and is quoted separately.
Figures are this calculator's own output for a single 800 sq ft area with standard underlayment, priced against Kolmo Construction's current material catalog and labor rates — planning numbers, not quotes. Run the calculator below for your own square footage.
Licensed & BondedKOLMOL*753JS
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Room Dimensions
Add and configure rooms for flooring installation
Room 1
Total Floor Area:180.0 sq ft
Total Perimeter:54.0 ft
Flooring Materials
Choose your flooring type and additional materials
Loading materials...
Recommended for sound dampening and moisture protection
Professional trim installation for a finished look
Auto-calculated from room perimeter: 54 ft
Professional metal transition strips where tile meets other flooring. Count all doorways and openings between rooms or to different flooring.
Professional removal and disposal of existing flooring
Leveling and preparation of subfloor surface
Your Estimate
Configure your project and click Calculate
Enter your project details to get started
How Our Flooring Cost Calculator Works
Professional flooring installation estimates for Seattle homes
Accurate Cost Estimation
Our flooring calculator prices Seattle-area installs from Kolmo's own material catalog and labor rates — current 2026 Seattle market pricing from local suppliers rather than national averages, set deliberately about 5% under the going rate for the same scope.
You give it room dimensions and a material; it returns an itemized estimate. The materials it prices are mid-grade laminate, luxury vinyl plank (standard and
premium grades), engineered hardwood, prefinished solid white oak, ceramic tile, porcelain tile, and carpet. Installation labor is banded by how the
material goes down: $2.60 per square foot for floating and stretch-in goods (laminate, LVP, carpet), $4 for engineered hardwood that glues or nails to a
flat subfloor, and $7 for the thinset and nail-down trades — ceramic and porcelain tile and solid hardwood — where layout, cuts and cure time drive
the hours. Material waste is tiered with the same logic: 10% on laminate, LVP and carpet, 12% on engineered plank, 15% on tile and solid hardwood.
Solid hardwood is priced prefinished; site-finishing it — sanding and three coats in place — is quoted separately.
What The Calculator Includes
Every flooring estimate breaks out material and labor as separate line items that add up to the quoted total — you can check the
arithmetic yourself. Subfloor repair and floor leveling, common in older Seattle homes, are priced as their own line rather than buried in a
per-square-foot rate. Material covers the flooring itself at your measured square footage plus the 10% waste factor, underlayment when you select it
(foam, moisture-barrier, or acoustic/cork), transition strips and thresholds by the count you enter, baseboard by linear foot, and an
adhesive/grout/supplies allowance. Labor covers the install itself, optional tear-out and disposal of the existing floor, optional subfloor
preparation billed by the hour, baseboard installation, and transition strip installation. Carpet is the one material quoted at an installed price,
so it carries no separate install-labor line. Small jobs are raised to a mobilization minimum, shown as its own line, because a one-room floor still
costs a crew a truck, a setup and a teardown. The cost of that minimum is shown, never hidden inside another line.
Seattle-Specific Considerations
Seattle's climate and housing stock create real flooring constraints. Many homes built before 1970 have subfloor issues — the wet climate
causes rot in crawl spaces, and settling creates unlevel floors that need prep before anything goes down. Moisture drives material choice here:
solid hardwood is not recommended below grade or in wet rooms, engineered hardwood handles humidity swings far better, and LVP is waterproof
outright, which is why it dominates Seattle basements, kitchens and baths. Grout lines in a tile floor stay waterproof only while the
grout itself is sound, so plan on resealing them. A moisture-barrier underlayment is the right call for any below-grade
install and is one of the underlayment options in the calculator. Washington requires licensed, bonded contractors carrying L&I coverage — our
rates reflect that, and unlicensed installers leave you holding the warranty and liability risk. Old flooring has to go to the proper facility
(carpet to Rabanco, wood to Cedar Grove, tile to specialised recyclers), which is why tear-out is priced as its own line rather than buried.
Comparing Flooring Bids
Use the estimate as a yardstick against the bids you collect. A flooring contractor's number is only comparable to another
contractor's number when both cover the same scope, and the three lines that most often differ are subfloor preparation, tear-out and disposal of
the old floor, and whether the material cost is quoted supplied-and-installed or material-only. Ask every bidder to itemise those three. Watch the
waste factor too: a flooring bid that quotes your exact measured square footage has not allowed for offcuts, and the shortfall reappears as a
change order. Confirm the contractor is licensed and bonded in Washington and carries L&I coverage — an unlicensed installer quoting a lower cost
per square foot is transferring the warranty and liability risk to you, and on a flooring job that risk lands on the subfloor underneath. If a bid
comes in far under this calculator's estimate, the usual explanation is a thinner material, an omitted prep line, or a waste factor of zero.
On permits: a like-for-like floor replacement does not normally need a building permit in Seattle or the surrounding King County cities, so no
permit fee is built into these numbers. That changes if the work touches structure — replacing rotten joists or subfloor sheathing, altering a
floor opening, or installing over radiant heat — and it changes again in a designated landmark or historic district. The permit comparison linked
above shows the requirement city by city.
Using The Calculator Effectively
Measure each room's length and width in feet and add a row per room — the calculator applies the waste factor for you, so enter your real
measured area, not a padded one — the tier for your material is applied automatically. Seattle floor plans from the 1920s through the 1950s tend to
run small and cut-up, so measure room by room rather than estimating a whole floor. Choose the material by how the room gets used: LVP for anything that can get wet and for below-grade rooms;
engineered hardwood where you want real wood over a flat subfloor; porcelain or ceramic tile for baths, entries and mudrooms; carpet for bedrooms.
Turn on subfloor preparation if the floor is uneven, springy, or you already know there is damage underneath — it bills by the hour and is the line
most likely to move once we see the room. Turn on removal if there is an existing floor to tear out. Enter the number of doorways needing a
transition strip. Then press Calculate Estimate; change any input and press it again to compare options side by side. The result is a planning
number, not a quote — the walkthrough is where the real price gets set, and it is free. Comparing two or three estimates this way, material against
material, is the fastest way to see where the cost actually sits before you call anyone out.
Flooring Cost Calculator: common questions
What flooring works best in Seattle's climate?
For Seattle's moisture and temperature fluctuations, engineered hardwood offers the best balance of appearance and stability. Luxury vinyl plank is excellent for moisture-prone areas like basements, bathrooms, and kitchens as it's 100% waterproof. Avoid solid hardwood in basements or below-grade spaces. Tile works wonderfully in bathrooms but feels cold in winter without radiant heating. Carpet performs well in dry areas but avoid it in basements where moisture can cause mold.
Should I remove old flooring myself to save money?
While DIY removal can save $1-3 per square foot in labor, it's risky without experience. Professionals have proper tools, dispose of materials correctly, and can identify subfloor problems during removal. Improper removal can damage subfloors, creating expensive repairs that negate any savings. For tile removal or homes potentially containing asbestos (pre-1980s construction), hire professionals. For simple carpet removal in newer homes, DIY is more feasible.
How long does flooring installation take?
Installation timelines vary by material and room size. Laminate or LVP in a 300-square-foot room takes 1-2 days including prep. Hardwood requires 3-5 days for the same space including sanding and finishing. Tile installation takes 3-4 days including setting time and grouting. Whole-home projects span 5-10 days depending on square footage and complexity. Add 1-2 days if subfloor repairs are needed. Most installers work standard business hours, not weekends.
Why trust this flooring installation estimate?
Kolmo LLC, established 2025, is a licensed, bonded and insured Washington general contractor (License #KOLMOL*753JS) working across Seattle and King County, and every rate in this tool reflects Seattle-area labor and supplier pricing. This flooring installation calculator prices from Kolmo's own material catalog and labor rates — current Seattle-area supplier pricing and our bid history, not national averages. Every estimate returns an itemized breakdown of materials and labor, and the line items reconcile to the total so you can check the arithmetic yourself, and the cost of every option you switch on appears as its own line. Treat the result as a planning estimate rather than a quote: the final price is set after a walkthrough of the actual conditions, which is free and carries no obligation.
What this calculator captures
Seattle market installed ranges by material tier — what flooring actually costs in this metro across the full spread of product grades and layouts, not what Kolmo charges. Kolmo prices standard-format straight-lay work at roughly 5% under the going rate for the same scope, so the calculator above lands at or below the bottom of every band here. Figures include material, labor, standard underlayment, and waste.
Carpet
$5-$10 / sq ft
Mid-grade nylon over standard pad, quoted at an installed price. Best in bedrooms and dry upper floors; avoid it below grade where moisture invites mold.
Laminate / LVP
$6-$12 / sq ft
Waterproof LVP in mid-grade click-lock, and laminate at the budget end. The right choice for Seattle basements, kitchens, and wet rooms. The calculator prices laminate and LVP in two grades.
Engineered / solid hardwood
$12-$25 / sq ft
Engineered at the low end, site-finished solid oak or maple at the high — sanding and finishing on site is what separates them. Engineered recommended below grade or over radiant. The calculator prices both, prefinished; site-finishing is quoted separately.
Ceramic / porcelain tile
$18-$30 / sq ft
Includes setting compound, grout, and membrane. Patterned tile (herringbone, hex) and large-format slabs push toward the top of the range; plain 12x24 straight-lay, which is what the calculator prices, sits at the bottom.
Using this calculator
Does the estimate include subfloor prep and patching?
Yes, when you turn it on — subfloor preparation is its own toggle, separate from floor removal, so switching on tear-out alone will not add a prep line. When selected it bills by the hour: about 1.25 hours per 100 sq ft at $50/hr, roughly $0.63 per sq ft, covering patch plywood, self-leveling underlayment where needed, and fastener-hole fill. That is a planning figure for a floor in ordinary shape. Older Seattle homes with settled tongue-and-groove subfloor, rot in the crawl space, or sections needing replacement run well past it — the walkthrough is where prep gets priced properly, and it is the line item most likely to move.
How should I choose between LVP and hardwood in a Seattle home?
LVP is waterproof, needs no acclimation, and tolerates Seattle's moisture swings — ideal for basements, kitchens, and bathrooms. Solid hardwood isn't recommended below grade or in high-moisture rooms. Engineered hardwood is a middle ground: real wood veneer on a plywood core that handles moisture better than solid. The calculator prices LVP and engineered hardwood so you can compare those two side by side; solid hardwood we install but quote by hand.
What waste factor does the calculator use?
It varies by material, because the offcuts do. Straight-lay laminate, LVP and carpet get 10%; engineered hardwood plank gets 12%; tile and solid hardwood get 15%, since both take more cuts and tile breaks. On an 800 sq ft room that is 881, 897 or 920 sq ft ordered and billed. Enter your real measured area, not a padded one, or you will pay the waste factor twice. What the calculator does not vary is layout: it prices straight-lay, so add a few points yourself for a diagonal or herringbone run, and a few more for a cut-heavy room full of closets, jogs and angled walls.
Can I use the calculator for a partial install?
Yes — enter only the sq footage of the area you're flooring. Be aware that small jobs hit a $1,500 mobilization minimum, shown as its own line item, because a one-room floor still costs a crew a truck, a setup and a teardown. A 100 sq ft tile bathroom prices at that minimum, which works out to about $15 per sq ft; the same tile across 1,000 sq ft comes in nearer $10-13 per sq ft, and 1,000 sq ft of standard LVP around $9. Per-square-foot cost falls as the area grows because mobilization is fixed.
How does pattern (herringbone, diagonal) affect labor cost?
Herringbone and chevron add roughly 30-50% to the labor line because every plank is cut twice and layout is geometric rather than linear. Diagonal installs add about 15-25%, and both push waste up several points on top of that. The calculator prices straight-lay only — it has no pattern input, so if you are planning herringbone, chevron or a diagonal run, take its labor figure as a floor and ask us to quote the layout directly. Pattern is one of the few flooring choices where the labor delta is bigger than the material delta.
