RightSizeTools Practical sizing calculators
Project cost estimator

Estimate a realistic cost range before you call contractors.

Choose a project, enter the scope details you know, and get a planning range with cost drivers, likely exclusions, and contractor questions. It is built for homeowner budgeting, not fake exact pricing.

How this estimator is structured

The model starts with project-specific cost components, then adjusts for region, local market, finish level, complexity, timeline, overhead, small-job inefficiency, and unknown-risk allowance. The goal is a useful planning range, not a single fake number.

Scope first

Each project asks different questions. A bathroom needs shower/plumbing details. A deck needs height, railing, stairs, and material type.

Quick start, then refine

Use the quick presets if you are not sure how to set finish level, complexity, or contingency. Then adjust the project-specific details.

Range, not quote

The result shows lower, typical, and high-risk planning values so hidden conditions and finish decisions are not hidden.

Quote-checking help

Each result includes what to double-check, what to clarify before signing, and ways to save without cutting corners.

What makes this different from a normal cost calculator

Most project cost pages give a broad national average and leave you guessing why your quote is higher or lower. This tool is built around how projects actually get missed in the field: unclear scope, vague allowances, hidden conditions, access, trade coordination, and finish selections.

It explains the range

The breakdown shows which parts of the project are driving the number, instead of only showing one total.

It helps you compare quotes

The checklist helps you avoid comparing a complete quote against a cheaper quote that leaves out disposal, prep, waterproofing, flashing, paint, permits, or trade work.

It gives practical savings

The savings ideas focus on scope choices that can lower the budget without recommending shortcuts that create problems later.

How to use the result without overcomplicating it

  1. Start with the quick preset. Use “Typical contractor project” unless your project is clearly simple, old/unknown, or upgraded/custom.
  2. Change only what you know. The estimator is designed to work with rough measurements and broad scope choices.
  3. Use the range as a quote filter. A quote far below the range may be missing scope. A quote far above the range may include risk, higher finishes, or extra work.
  4. Compare what is included. The checklist matters as much as the number because two quotes can look similar and cover very different work.
  5. Send the copied summary. The copy button gives you a contractor-ready summary of your assumptions, biggest drivers, and questions.

Build your cost range

Start with the project type and quick-start preset. The default estimate is usable right away; the extra controls are there when you know more detail.

Switching project type changes the detailed questions below.
Not sure on every detail? That is normal. Start with the closest preset, then change only the details you actually know.

Quick start

Pick the closest situation first. You can fine-tune the details below.

Project details

Answer the main scope questions for this project.

Location and market

Leave these at the defaults if you are not sure. Adjust them when your market is clearly cheaper, busier, rural, coastal, metro, or access-constrained.

%
Use more for old houses, hidden damage, unclear scope, or projects that open walls/floors.
Professional estimator controls
%
Keep this included. Real contractor pricing has overhead, insurance, admin, warranty risk, and profit.
%
Small jobs often cost more per unit because mobilization, setup, and return trips do not scale down cleanly.

Project-specific cost calculators

Open a focused version if you already know the project type.

Cost estimator

Bathroom remodel

Estimate a realistic bathroom remodel cost range from room size, finish level, shower/tub scope, plumbing changes, tile, and project complexity.

Estimate this project →
Cost estimator

Basement finishing

Estimate basement finishing cost from square footage, ceiling type, bathroom, flooring, insulation, moisture risk, and finish level.

Estimate this project →
Cost estimator

Deck build

Estimate deck cost from dimensions, decking material, height, stairs, railings, footings, demo, and complexity.

Estimate this project →
Cost estimator

Interior painting

Estimate interior painting cost from room count, wall area, ceiling work, trim/doors, prep level, coats, and finish level.

Estimate this project →
Cost estimator

Flooring install

Estimate flooring installation cost from area, material type, demo, subfloor repairs, stairs, trim, and finish level.

Estimate this project →
Cost estimator

Kitchen remodel

Estimate kitchen remodel cost from cabinet scope, countertop, backsplash, flooring, appliance changes, plumbing/electrical changes, and finish level.

Estimate this project →
Cost estimator

Roof replacement

Estimate asphalt roof replacement cost from roof dimensions, pitch, shingle tier, tear-off layers, underlayment, access, and complexity.

Estimate this project →
Cost estimator

Tile shower

Estimate tile shower cost from shower size, waterproofing, tile level, niche/bench, glass, plumbing, demo, and complexity.

Estimate this project →
Cost estimator

Drywall repair

Estimate drywall repair cost from damaged area, ceiling/wall location, finish level, painting scope, texture, and trip count.

Estimate this project →

What this is not