Structural calculation and quantity takeoff true to TCVN standards
BuildLab is an online toolkit that helps Vietnamese students, engineers, and contractors enter their inputs and get results with traceable formulas — no more rebuilding a spreadsheet for every project.
Featured tools
Pick the group that matches your task — each one has the most-used tool plus related tools.
Simple beam/slab reinforcement
Calculate flexural reinforcement area from a known moment M under TCVN 5574:2018.
Open toolStrip footing
Calculate strip-footing quantities by gridline, suitable for low-rise residential projects.
Open toolBasic load calculation
Dead and uniformly distributed live loads on slabs under TCVN 2737:2023.
Open toolTool library
Explore all 20 construction tools
Choose a tool to start calculating for your current task.
Quantity takeoff from DWG/AutoCAD
Upload a DWG or DXF in a project, let BuildLab propose quantities, then have an engineer review them before exporting a BOQ Excel sheet.
Upload & parse
Securely process DWG files, extracting relevant geometric and metadata.
Analyze structure
Identify reinforced-concrete frames, rebar cages, and layered materials.
Generate export
Output comprehensive BOQ reports formatted to industry standards.
Why BuildLab?
A toolkit built specifically for construction calculation work in Vietnam.
Accurate to TCVN
Formulas, coefficients, and checks follow TCVN 5574:2018, TCVN 2737:2023, and current state norms.
Fast and efficient
Enter your inputs and get results — no rebuilding spreadsheets for every member.
Easy for everyone
A clear Vietnamese interface that works on phone and desktop, with nothing to install.