Embed our calculation tools on your website

Place BuildLab's TCVN calculators on your blog, forum, or website with a single iframe — free, no account required. Your readers calculate right on your page; the "Powered by" link points back to congcuxaydung.com.

How to embed

  1. Pick the tool you want to embed below.
  2. Copy that tool's iframe snippet.
  3. Paste it into your page's HTML where it should appear — done.

Optional: append ?ref=your-domain to the src URL so we know usage comes from your site.

TCVN-based formulas, updated automatically with the site.

Soil bearing pressure check

Design pressure R of the subgrade under an isolated footing per TCVN 9362:2012 §4.6.9.

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Embed code

<iframe src="https://www.congcuxaydung.com/embed/calc/soil-bearing" width="100%" height="720" style="border:0;border-radius:12px;overflow:hidden" loading="lazy" title="Soil bearing pressure check — BuildLab"></iframe>

Pile bearing capacity

Pile bearing capacity from soil and material, pile group load distribution per TCVN 10304:2014.

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Embed code

<iframe src="https://www.congcuxaydung.com/embed/calc/pile-bearing" width="100%" height="720" style="border:0;border-radius:12px;overflow:hidden" loading="lazy" title="Pile bearing capacity — BuildLab"></iframe>

Wind load calculation

Design wind pressure Wk by height for walls of a rectangular building, per TCVN 2737:2023 §10.2 — covers Gf=0.85 for rigid structures and dynamic wind for flexible structures T1>1s (§10.2.7.3).

PreviewOpen tool page

Embed code

<iframe src="https://www.congcuxaydung.com/embed/calc/wind-load" width="100%" height="720" style="border:0;border-radius:12px;overflow:hidden" loading="lazy" title="Wind load calculation — BuildLab"></iframe>

Seismic load

Base shear Fb and storey forces Fi by the equivalent lateral force method of TCVN 9386:2012 §4.3.3.2 — regular buildings, horizontal design spectrum.

PreviewOpen tool page

Embed code

<iframe src="https://www.congcuxaydung.com/embed/calc/seismic-load" width="100%" height="720" style="border:0;border-radius:12px;overflow:hidden" loading="lazy" title="Seismic load — BuildLab"></iframe>

Eccentric column

Check provided steel or design symmetric steel for a rectangular column under one-axis N + M per TCVN 5574:2018 §8.1.2.

PreviewOpen tool page

Embed code

<iframe src="https://www.congcuxaydung.com/embed/calc/eccentric-column" width="100%" height="720" style="border:0;border-radius:12px;overflow:hidden" loading="lazy" title="Eccentric column — BuildLab"></iframe>
BuildLab

BuildLab — a construction quantity takeoff & cost estimation tool for students, engineers, contractors, and households in Vietnam. Calculations reference Vietnamese TCVN standards. Currently expanding into more engineering fields, starting with Construction.

Engineering Calculation Platform

BuildLab © 2026 · BuildLab v1.0.11

Resources

GuideKnowledge libraryNorm & unit price lookupEmbed toolsDWG quantity takeoffEstimating tool comparisons

BuildLab

AboutContactSupport the project →

Legal

Terms of UsePrivacy PolicyDisclaimer

Platform

Online technical tools for construction work.

congcuxaydung.com

BuildLab v1.0.11

Embed our calculation tools on your website

Place BuildLab's TCVN calculators on your blog, forum, or website with a single iframe — free, no account required. Your readers calculate right on your page; the "Powered by" link points back to congcuxaydung.com.

How to embed

  1. Pick the tool you want to embed below.
  2. Copy that tool's iframe snippet.
  3. Paste it into your page's HTML where it should appear — done.

Optional: append ?ref=your-domain to the src URL so we know usage comes from your site.

TCVN-based formulas, updated automatically with the site.

Soil bearing pressure check

Design pressure R of the subgrade under an isolated footing per TCVN 9362:2012 §4.6.9.

PreviewOpen tool page

Embed code

<iframe src="https://www.congcuxaydung.com/embed/calc/soil-bearing" width="100%" height="720" style="border:0;border-radius:12px;overflow:hidden" loading="lazy" title="Soil bearing pressure check — BuildLab"></iframe>

Pile bearing capacity

Pile bearing capacity from soil and material, pile group load distribution per TCVN 10304:2014.

PreviewOpen tool page

Embed code

<iframe src="https://www.congcuxaydung.com/embed/calc/pile-bearing" width="100%" height="720" style="border:0;border-radius:12px;overflow:hidden" loading="lazy" title="Pile bearing capacity — BuildLab"></iframe>

Wind load calculation

Design wind pressure Wk by height for walls of a rectangular building, per TCVN 2737:2023 §10.2 — covers Gf=0.85 for rigid structures and dynamic wind for flexible structures T1>1s (§10.2.7.3).

PreviewOpen tool page

Embed code

<iframe src="https://www.congcuxaydung.com/embed/calc/wind-load" width="100%" height="720" style="border:0;border-radius:12px;overflow:hidden" loading="lazy" title="Wind load calculation — BuildLab"></iframe>

Seismic load

Base shear Fb and storey forces Fi by the equivalent lateral force method of TCVN 9386:2012 §4.3.3.2 — regular buildings, horizontal design spectrum.

PreviewOpen tool page

Embed code

<iframe src="https://www.congcuxaydung.com/embed/calc/seismic-load" width="100%" height="720" style="border:0;border-radius:12px;overflow:hidden" loading="lazy" title="Seismic load — BuildLab"></iframe>

Eccentric column

Check provided steel or design symmetric steel for a rectangular column under one-axis N + M per TCVN 5574:2018 §8.1.2.

PreviewOpen tool page

Embed code

<iframe src="https://www.congcuxaydung.com/embed/calc/eccentric-column" width="100%" height="720" style="border:0;border-radius:12px;overflow:hidden" loading="lazy" title="Eccentric column — BuildLab"></iframe>
BuildLab

BuildLab — a construction quantity takeoff & cost estimation tool for students, engineers, contractors, and households in Vietnam. Calculations reference Vietnamese TCVN standards. Currently expanding into more engineering fields, starting with Construction.

Engineering Calculation Platform

BuildLab © 2026 · BuildLab v1.0.11

Resources

GuideKnowledge libraryNorm & unit price lookupEmbed toolsDWG quantity takeoffEstimating tool comparisons

BuildLab

AboutContactSupport the project →

Legal

Terms of UsePrivacy PolicyDisclaimer

Platform

Online technical tools for construction work.

congcuxaydung.com

BuildLab v1.0.11

BuildLab
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