About
About Tallyard
Tallyard builds free calculators, measurement worksheets, and buying guides for home improvement projects. Tools vary in scope; review each page's inputs, assumptions, references, and limitations. The site does not require an email, phone number, or credit card to use its calculators.
That is the approach I wanted for project planning: make the inputs and limitations easier to inspect, without requiring a lead form to use the calculators.
Founder
Ash K.
LinkedIn →I build data-driven web tools. Tallyard started because I needed a concrete calculator that showed its working and could not find one. Every result on every other site was a black box: enter your numbers, get an answer, no idea how it was calculated or what assumptions it used. So I built one that showed its working. The tools have since expanded to cover other planning questions.
I am not a contractor, an electrician, or an HVAC technician. These tools are not professional designs or trade advice. Some pages link to product or industry references; coverage and citations vary by tool, so use each page's references as a starting point and confirm current requirements with the relevant manufacturer, local authority, or qualified professional.
Before Tallyard, I built JaankariHub and other reference tools that serve millions of users. The approach is the same across all of them: find a question people search for, find the authoritative source for the answer, build a tool that makes the answer accessible without requiring expertise to interpret it.
Editorial process
How we build calculators and write guides
Calculator formulas
Calculator pages show the formulas and assumptions used for their estimates. Source references are listed where relevant; some values vary by product, location, and code edition. Check the actual product data and local requirements before buying materials or making safety-critical decisions.
Guide research
Buying guides are researched against current pricing data (Angi, HomeGuide, NerdWallet cost reports), manufacturer technical specifications (James Hardie, Trex, Mitsubishi), federal program details (IRS Form 5695, DOE HEEHRA program pages), and building codes (IRC 2021, IPC 2021). Total cost of ownership calculations show their assumptions explicitly so readers can adjust for their situation.
What we don't do
We don't accept payment from manufacturers, retailers, or contractors to influence calculator results or guide recommendations. Calculator inputs are processed entirely in your browser. Where a link earns a commission, it is disclosed, and it never changes what a calculator returns or which product a guide recommends.
Corrections
If you find a formula error, an outdated cost figure, or a factual mistake in any calculator or guide, email hello@tallyard.com. We review and update within 48 hours for confirmed errors. Calculator updates note the correction in the methodology section.
Why “Tallyard”
A tallyard is an old English word for a measuring rod used in construction. Builders carried one to measure lengths, check squareness, and verify that materials fit before committing to a cut. The name fits what this site does: measure twice, cut once.