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YOUR PROJECT, YOUR NUMBERS

Build your foam budget.

Explore the kits, then use your measurements and quote.

THE KIT SHORTLIST

Surface-spray kits on Amazon.

Amazon affiliate links. As an Amazon Associate I earn from qualifying purchases. No added cost to you.

Best Spray Foam picks · same owner.

  1. Best Spray Foam pick #1Kraken Bond FastCoat 24-Pack

    Kraken Bond FastCoat 24-Pack

    24 x 27.1 oz · gun-applied surface foam

    4.0· 429 ratings
    Amazon · Sep 12, 2026

    $369.99At Amazon ·

    View on Amazon
  2. Best Spray Foam pick #2Akfix ThermCoat 24-Pack

    Akfix ThermCoat 24-Pack

    24 x 27.1 oz · gun-applied surface foam

    4.2· 585 ratings
    Amazon · Sep 12, 2026

    Check price on Amazon

    View on Amazon
  3. Best Spray Foam pick #3Stanley F990P SuperCoat 24-Pack Kit; ranked 24-pack image, Amazon link opens the Complete 12-pack kit

    Stanley F990P SuperCoat 24-Pack Kit

    Amazon offer: Complete 12-pack kit · ranked record is the 24-pack

    No exact-ASIN rating snapshot is recorded for this Amazon offer.

    Check price on Amazon

    View on Amazon

For open surfaces and thin passes. Check the exact label and instructions for your job.

How these kits were selected

These are the first three in Best Spray Foam’s evidence-led order (Sep 7, 2026). The two publications share ownership. These are catalog options, not approval for a building or a whole-house insulation plan. Prices and customer ratings are dated observations and can change.

Read the full product comparisons at Best Spray Foam →

BUILD A WORKING BUDGET

Start with a quote you can check.

No preset market rate. Your quote supplies the price; the calculator keeps its basis visible.

Use the net walls, roof or other surfaces in the agreed scope, not the home’s floor area alone. Whole-house work needs a coordinated design and a qualified contractor.

Your inputs stay in this browser. We do not send the measurements or quoted prices to analytics.

THE MATH BEHIND THE TOTAL

Area, depth and the quote unit.

Raw board feet = net square feet × thickness in inches. A square-foot quote prices net area; a board-foot quote prices raw volume. Add separately identified costs once.

For example, 120 sq ft at 3 inches is 360 board feet. A hypothetical $2.25 per board foot gives $810; $50 of separate extras makes $860. Those prices illustrate arithmetic, not today’s market rate.

Need help measuring? Build a surface takeoff ↗Understand thickness, board feet and yield ↗Check what contractor quotes include ↗

Questions about the estimate

Is the displayed result a local contractor price?

No. The result uses the rate you enter. Local quotes vary with the actual scope, access, preparation, product system, work controls and required finish. Identify what your quoted rate includes before using the total.

What is the difference between a square-foot and a board-foot quote?

A square-foot rate prices area at the quoted thickness. A board-foot rate prices volume: net square feet multiplied by thickness in inches. Choose the unit printed on your quote; multiplying a square-foot price by thickness again would count depth twice.

Does the calculation tell me how many cans or kits to buy?

No. Raw board feet are geometric volume, not usable package yield. Exact product documentation, thickness, application conditions and field loss must be considered separately. This tool also does not choose an R-value, foam type or approved assembly.