Disclaimer
Last updated: 2026-05-24
How our recommendations are derived
All calculator outputs and product recommendations on CraftedCalcs are derived from research of authoritative sources — industry-standard codes (IRC, ACI, ICC, IECC, DOE, ASTM, NFPA), published manufacturer technical data sheets (TDS), and trade associations (NWFA, RFCI, ICPI, GA, CRI, NALFA). We do not personally use or test the products we cite. CraftedCalcs is a research-driven informational tool, not an installer, contractor, or product reseller. Brand-specific values trace to the manufacturer's published spec sheet as of the date listed on the source page; verify against the current spec before purchasing.
These outputs are:
- NOT professional engineering, architectural, or construction advice
- NOT a code-compliance certificate
- NOT a building permit application
- NOT a substitute for review by a licensed professional
Estimates only
All results are estimates intended to help you plan and shop for materials. Actual quantities may vary due to:
- Cut losses, waste, and damaged materials
- Site-specific conditions (slope, moisture, substrate)
- Local building code differences
- Manufacturer or supplier variations
- Design changes during installation
Industry-typical practice is to order 10–15% extra on most materials to account for waste. Diagonal flooring installs, complex cuts, or intricate projects may warrant 15–20% or more.
Not professional advice
CraftedCalcs is an informational tool, not a substitute for professional engineering, architectural, or construction advice. For any structural, load-bearing, electrical, plumbing, or code-critical work, consult a licensed contractor and your local building authority.
Do not rely on CraftedCalcs for decisions that could affect safety, structural integrity, or legal compliance without independent verification from a qualified professional.
Feedback and corrections
We strive to build these calculators to the highest standards — but mistakes are possible, in either our research or in how we apply a formula. If you spot a calculation error, an outdated citation, or a recommendation that doesn't match the source we cite, please tell us via the feedback form. We review every customer-reported issue and update the page when corrections are needed.
Use at your own risk
You use CraftedCalcs and its calculators at your own risk. Madabusi Ventures LLC, which operates CraftedCalcs, disclaims all warranties, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, and non-infringement.
Madabusi Ventures LLC is not liable for any damages — direct, indirect, consequential, incidental, or punitive — arising from your use of this site or reliance on its calculations, including but not limited to:
- Incorrect material quantities or cost overruns
- Installation errors or project failures
- Injuries or property damage
- Code violations or inspection failures
- Delays or lost opportunity
No affiliation with product manufacturers
Unless explicitly stated, CraftedCalcs is not affiliated with, endorsed by, or sponsored by any product manufacturer mentioned on this site. Product names, formulas, and specifications cited are used for informational purposes only.
AI-assisted content
Some content on CraftedCalcs is generated with AI assistance. Calculator formulas are drawn from industry-standard sources and exercised by automated tests. See our AI Disclosure for details.
Changes to this disclaimer
We may update this disclaimer as the site evolves. The "Last updated" date at the top reflects the most recent revision. Continued use of the site after changes indicates acceptance of the revised disclaimer.
Contact
General questions about this disclaimer: send them via our feedback form. Legal notices (dispute notices, DMCA notifications, arbitration opt-out): send to [email protected].