50 state DOT standard specifications, searchable by section, with Code AI answers that cite the section. Standard drawings and supplements are linked in each state library. Plus adopted building codes, permits and fire-rated assemblies for the vertical side.
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Adopted codes, agency specifications, assemblies and the research tools that read them — every library is free to browse.
Whether you pull permits, stamp drawings, or pour foundations — BuildSpec keeps you code-compliant and moving fast.
Search UDOT, CDOT and every other state spec book during bid week. Cited answers, section alerts, no PDFs.
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Residential code lookup made simple. IRC, IBC, NEC editions by city with local amendments flagged.
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Understand permit timelines and code requirements during due diligence — before you close on the lot.
One platform replacing scattered PDFs, outdated bookmarks, and phone calls to the building department.
Enter any US address and instantly see which building codes apply — IRC, IBC, NEC, IECC editions with local amendments.
Ask natural language questions about building codes and get jurisdiction-specific answers with inline citations.
See exactly what permits are required, application fees, inspection schedules, and submission requirements by city.
Search fire-rated assembly types by rating, material and STC. Verified UL/GA and IBC Table 721.1 designs are marked; the rest are illustrative, not tested listings.
Search state DOT specifications and approved product lists. Semantic search finds relevant sections instantly.
Get notified when building codes change in your jurisdictions. Track NEC, IRC, IBC, and IECC updates by state.
Built-in calculators for deck footings (IRC R507.3), electrical loads (NEC 220.82), and wire sizing (NEC 310.16).
Search 23,395 code sections, 2,355 fire assemblies, DOT specs and federal standards in seconds.
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Type any US address and we identify the exact jurisdiction, adopted codes, and local amendments.
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Create and manage code compliance checklists for your projects. Pre-built templates for common project types.
Perform code calculations with built-in formulas — occupant load, egress width, parking, plumbing fixtures, and more.
Access and search building specifications alongside codes. Organized by CSI MasterFormat divisions.
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