Construction Glossary

Understand the language of construction, infrastructure, procurement, and project management.

Whether you're a contractor, consultant, project manager, procurement professional, or student, this glossary explains common construction terms in simple language. From BOQ and DPR to EPC and Earned Value, quickly find the definitions you need.

Updated regularly with industry-standard terminology.

Introduction

Construction projects involve thousands of technical, contractual, financial, and engineering terms. Understanding these terms helps teams communicate effectively, reduce errors, and make informed decisions.

This glossary covers terminology commonly used in:

• Roads & Highways

• Metro & Rail Projects

• Airports

• Bridges

• Buildings

• Industrial Projects

• Solar & Renewable Energy

• Procurement & Contracts

• Project Controls

• Quantity Surveying

Popular Construction Terms

BOQ (Bill of Quantities)

A detailed document listing all materials, labor, equipment, and quantities required for a construction project. BOQs help contractors prepare accurate bids and manage project costs.

DPR (Detailed Project Report)

A comprehensive report that includes project scope, design, feasibility, cost estimates, schedule, risks, and implementation strategy before construction begins.

EPC (Engineering, Procurement and Construction)

A project delivery model where one contractor is responsible for engineering, procurement of materials, construction, testing, and project handover.

RFI (Request for Information)

A formal request submitted by a contractor to clarify drawings, specifications, or project requirements before executing work.

RFQ (Request for Quotation)

A document issued to suppliers asking for pricing on specified materials or services.

Tender

An official invitation issued by an organization requesting contractors or suppliers to submit bids for a project.

Bid

A contractor's proposal detailing pricing, methodology, schedule, and commercial terms for completing a project.

Variation Order

A formal change to the original contract scope, affecting cost, schedule, or project deliverables.

Mobilization

The process of moving manpower, machinery, equipment, and materials to the project site before construction begins.

Snag List (Punch List)

A list of incomplete or defective work items identified before final project handover.

Retention Money

A percentage of payment withheld by the client until project completion or expiry of the defect liability period.

Defect Liability Period (DLP)

The period after project completion during which the contractor must repair defects identified by the client.

Bar Bending Schedule (BBS)

A detailed schedule specifying reinforcement bar sizes, quantities, shapes, and cutting lengths required for reinforced concrete structures.

GFC Drawings

Good For Construction drawings approved for execution at the project site.

As-Built Drawings

Final drawings showing the actual dimensions and construction completed on-site after project execution.

WBS (Work Breakdown Structure)

A hierarchical breakdown of the project into manageable work packages for planning and execution.

Critical Path Method (CPM)

A scheduling technique that identifies the sequence of activities determining the minimum project completion time.

Earned Value Management (EVM)

A project performance measurement technique comparing planned work, completed work, and actual costs.

Float

The amount of time an activity can be delayed without affecting the project completion date.

Milestone

A significant event marking the completion of a major phase or deliverable within a project.

Shop Drawings

Detailed drawings prepared by contractors or manufacturers showing fabrication and installation details.

Method Statement

A document describing how specific construction activities will be safely executed.

Inspection Request (IR)

A formal request submitted for quality inspection before proceeding with the next construction activity.

NCR (Non-Conformance Report)

A report documenting work that does not comply with project specifications or quality standards.

Cube Test

A compressive strength test performed on concrete cubes to verify concrete quality.

Slump Test

A field test measuring the workability and consistency of fresh concrete.

Formwork

Temporary molds used to shape concrete until it gains sufficient strength.

Scaffolding

Temporary structures providing workers with safe access to elevated work areas.

Quantity Surveyor (QS)

A professional responsible for estimating costs, managing contracts, preparing BOQs, and controlling project budgets.

Procurement

The process of purchasing materials, equipment, and services required for project execution.

Lead Time

The time required from placing an order until materials are delivered to the project site.

Material Reconciliation

The process of comparing material issued, consumed, and remaining to identify wastage or shortages.

Practical Completion

The stage where construction is substantially complete and the facility can be occupied, although minor defects may remain.

Why This Glossary Matters

Understanding construction terminology helps:

• Improve communication between project stakeholders

• Reduce misunderstandings during execution

• Support accurate tendering and procurement

• Improve project planning and cost control

• Enhance collaboration across engineering, procurement, and construction teams

Looking for AI in Construction?

CognifyIntel.ai helps construction companies securely search contracts, drawings, BOQs, RFIs, DPRs, invoices, purchase orders, quality records, and project documents using Private AI—keeping your data within your organization's environment.

Learn how Private AI can improve construction project knowledge management while keeping sensitive project information secure.

Trusted Technology Stack

At CognifyIntel, we believe enterprise AI should be built on proven technologies trusted by businesses across the globe. Our solutions are designed to integrate with modern enterprise infrastructure, enabling organizations to deploy AI securely, reliably, and at scale.

Technologies We Build With

AI Models

• Llama

• Qwen

• Mistral

• DeepSeek

• OpenAI Compatible Models

Cloud Platforms

• Amazon Web Services (AWS)

• Google Cloud

• Microsoft Azure

AI Infrastructure

• NVIDIA

• Intel

• AMD

Enterprise Linux & Containers

• Red Hat Enterprise Linux

• Docker

• Kubernetes

• Podman

Databases & Vector Search

• PostgreSQL

• Elasticsearch

• Redis

• Milvus

• Qdrant

Development Frameworks

• LangChain

• LlamaIndex

• Hugging Face

• Ollama

• vLLM

Security & Identity

• Microsoft Active Directory

• LDAP

• Keycloak

• OAuth 2.0

• SAML

Why Our Technology Matters

Every technology within our ecosystem has been selected to help enterprises deploy AI with confidence.

Enterprise Security

Designed to integrate with your organization's existing security policies and infrastructure.

Flexible Deployment

Deploy on-premise, in your private cloud, or within a hybrid environment.

High Performance

Optimized to deliver fast AI responses, even across millions of documents.

Open Architecture

Supports leading open-source technologies and enterprise platforms.

Future Ready

Easily upgrade AI models and infrastructure as technology evolves.

Seamless Enterprise Integration

Our platform is designed to work alongside your existing business ecosystem.

It can be configured to integrate with:

• ERP Systems

• CRM Platforms

• Document Management Systems

• HRMS

• Internal Knowledge Bases

• REST APIs etc

Privacy First

Your business data remains under your control.

Vendor Flexible

Choose the AI models and infrastructure that best fit your organization.

Scalable

Built for growing enterprises and high-volume workloads.

Enterprise Ready

Designed for production environments with enterprise security and governance.

Future Proof

Easily adopt new AI models and technologies without replacing your entire platform.

Our Technology Philosophy

Technology should empower organizations—not lock them into proprietary ecosystems.

That's why CognifyIntel embraces open standards, enterprise interoperability, and modular architecture. Our platform is designed to evolve alongside advancements in Artificial Intelligence while preserving your freedom to choose the technologies that best meet your business needs.

Important Notice

Technology logos displayed on this page represent technologies, platforms, frameworks, or products that our solutions support, integrate with, or are compatible with. Unless explicitly stated, their appearance does not imply endorsement, sponsorship, or an official commercial partnership with CognifyIntel.

Book a Demo

Enterprise-Grade Compatibility

Whether your organization operates entirely on-premise or across multiple cloud environments, our architecture is built for flexibility.

Supported deployment options include:

✅ On-Premise Infrastructure

✅ Private Cloud

✅ Hybrid Cloud

✅ Air-Gapped Environments

Glossary Construction