Disclaimer & Safety Notice

Last updated: October 2, 2026

SHORT VERSION: Our calculators provide measurements, quantities and planning estimates — not specifications. Construction work is inherently dangerous. You are responsible for verifying all calculations against manufacturer specifications, the building regulations that apply where you live, and your own professional judgment. We are not liable for damages arising from the use of our calculators.

1. Educational and Planning Purpose

The information and calculators provided on MyHouseLogic (the "Service") are offered for general informational, educational and planning purposes only. They are designed to help you understand dimensions, areas, volumes, quantities, coverage, ratios and waste allowances for home, construction, renovation and DIY projects. They do not constitute professional engineering, architectural, building science, electrical, plumbing or legal advice, and they are not a substitute for the expertise of a qualified professional.

All construction work involves judgments that cannot be made by a calculator: soil bearing capacity, structural load paths, regulatory compliance, material compatibility, environmental conditions and worker safety. Our calculators handle the arithmetic; they cannot make these judgments for you. Always engage qualified professionals for any project that involves structural, electrical, plumbing, gas or life-safety work.

2. No Certifications, Approvals or Pricing

The calculators and guides on this Service do not provide any of the following, and must not be relied upon as if they did:

Professional engineering certification or structural certification
Building approval, permits or sign-off of any kind
Electrical or plumbing certification
Contractor quotes, tenders or bids
Material prices, labour estimates or project budgets
Compliance certification with any building code or regulation

MyHouseLogic deliberately does not price materials, labour or projects. Quantities, dimensions and coverage figures are planning inputs only. For costs, obtain written quotes from suppliers and contractors in your own market; for approvals, consult the authority having jurisdiction where the work will be done.

3. Construction Is Inherently Dangerous

Construction, renovation, demolition and landscaping work carry inherent risks including but not limited to: falls from heights, electric shock, structural collapse, equipment injuries, chemical burns from cement, render and thinset, respiratory damage from silica dust, hearing loss from power tools, heat illness, cold injury, and crush injuries from heavy materials. Construction ranks among the most hazardous occupations and activities in every region of the world.

By using the Service, you acknowledge that you understand these risks and accept full responsibility for the safety of yourself and others on your site. You are responsible for:

Using appropriate personal protective equipment (PPE) including hard hats, safety glasses, hearing protection, respirators, gloves and safety footwear.
Following the occupational safety and health regulations that apply in your country and locality.
Obtaining proper permits and inspections for work that requires them — which includes most structural, electrical, plumbing and gas work.
Hiring qualified professionals for work you are not qualified to perform safely.
Maintaining a safe work environment, including fall protection at height, protection of excavations, and isolation of energised electrical systems before work begins.

4. Calculator Accuracy Limitations

Our calculators are built on standard geometry, unit conversions and published industry reference data. Where a calculator or guide relies on a specific regional standard (for example the US NEC for electrical load, the IRC for deck framing, or TCNA methods for tile), the page identifies that standard and its region. Several factors can still cause real-world results to differ from calculator outputs:

Material variation: Bag yields, sheet sizes and tile dimensions differ by manufacturer and by region. Always check the manufacturer's specifications and the labels actually sold in your market.
Environmental conditions: Temperature, humidity and surface porosity affect coverage rates. Paint coverage drops on rough or unpainted surfaces. Adhesive coverage varies with trowel notch size.
Installation method: Diagonal tile layouts require more waste than straight-lay. Higher-texture plaster finishes require more compound. Back-buttering large-format tile increases adhesive consumption by roughly a quarter.
Regional variation: Building codes, standard material sizes and trade practice differ between countries and even between neighbouring municipalities. Where our pages use one region's reference tables, local requirements may differ.
Input accuracy: Calculators are only as accurate as the measurements you enter. Measure twice, calculate once. Verify all dimensions before ordering materials.

We recommend adding 10–15% to material estimates beyond what the calculators show to account for these variables. The calculators include default waste factors, but real-world projects routinely exceed the defaults.

5. Requirements Vary by Location

Construction requirements are not universal. They vary by country, state or province, municipality, building code, climate, soil conditions, construction method, material manufacturer and the specific details of your project. A framing span, a wire size or a drainage slope that is acceptable in one jurisdiction may be insufficient or non-compliant in another, and local amendments are frequently stricter than the model rules they modify.

Where our calculators reference a named code or standard, that reference is a planning starting point — not a promise of compliance where you live. Always confirm requirements with the building authority having jurisdiction over your project before starting work. A calculator cannot tell you what your local authority requires; only your local building department or a licensed local professional can.

6. Permits and Licensed Trades

Most construction and renovation work requires permits and inspections. Work performed without required permits can result in fines, mandatory removal of completed work, difficulty selling the property, and denial of insurance claims. Work that affects life-safety systems (electrical service, gas lines, structural walls, fire-rated assemblies) typically requires permits even for small projects.

Many countries, states and provinces require specific licences or registrations for electrical, plumbing, gas, HVAC and structural work, and some also require them for projects above certain sizes or complexities. Doing licensed work without the required licence can carry serious legal and financial consequences.

You are responsible for determining whether your project requires a permit, whether you need a licensed contractor, and whether the work you perform is legal in your jurisdiction. MyHouseLogic does not provide legal advice on these matters.

7. Environmental and Health Hazards

Many older buildings contain hazardous materials that require special handling. Rules for testing, removal and disposal differ by country:

Asbestos: Common in older flooring and adhesives, textured ceiling coatings, pipe insulation, cement sheeting and joint compounds. Disturbing asbestos releases fibres that cause mesothelioma and lung cancer. Always have suspect materials tested before demolition, and use licensed abatement contractors for removal where required.
Lead paint: Common in homes painted before the late 1970s in many countries. Sanding or scraping creates toxic dust that is especially harmful to children. Many jurisdictions require certified renovators for work on older painted surfaces.
Silica dust: Created when cutting concrete, brick, stone, tile or plasterboard. Causes silicosis and lung cancer. Use water suppression or dust extraction plus appropriate respiratory protection.
Mold: Common in water-damaged buildings. Disturbing moldy materials releases spores that cause respiratory illness. Use containment and respiratory protection during remediation.
Vermiculite insulation: Some sources are contaminated with asbestos. Do not disturb; have it professionally tested before any attic work.

If you encounter any of these materials during your project, stop work and consult a qualified abatement or remediation professional familiar with your local regulations.

8. No Endorsement of Specific Products or Brands

When our articles or calculators reference specific products, brands, or manufacturers (such as "Quikrete", "Schluter Kerdi", "RedGard", "Type III cement"), these references are for identification only and do not constitute endorsements. We have no financial relationship with these manufacturers unless explicitly disclosed. Other manufacturers' equivalent products may perform identically — always compare specifications rather than brand names.

9. External Links Disclaimer

The Service contains links to external websites maintained by third parties. We have no control over the content, accuracy, or practices of these external sites. The inclusion of a link does not imply endorsement. We are not responsible for any damages or losses arising from your use of linked external websites.

10. Affiliate Disclosure

If we ever publish sponsored content, affiliate links, or paid product reviews, those items will be clearly labeled as "Sponsored" or "Affiliate Link" at the top of the content. As of the last update of this Disclaimer, we do not use affiliate links.

11. Changes to This Disclaimer

We may update this Disclaimer from time to time to reflect changes in our practices, applicable laws, or industry standards. The most current version will always be posted on this page with a revised "Last updated" date. We encourage you to review this page periodically.

12. Contact

If you have questions about this Disclaimer, contact us at:

MyHouseLogic
Attn: Editorial / Safety
Email: [email protected]
Contact form: myhouselogic.com/about#contact

By using MyHouseLogic, you acknowledge that you have read, understood, and agree to this Disclaimer and our Terms of Use and Privacy Policy.