How to Draft a Simple Floor Plan in AutoCAD – Step‑by‑Step Guide

Introduction

Coach Jean from Drafting Lifestyle walks you through creating a basic residential floor plan using AutoCAD. The tutorial covers the purpose of floor plans, essential code requirements, and a complete workflow from setting up the drawing to final plotting.

What Is a Floor Plan?

• A top‑down, cross‑sectional view of a building’s floor area.
• Shows room sizes, layout, wall thickness, doors, windows, columns, and the flow of occupants.
• Serves as the primary working drawing for the entire blueprint set.

Key Code Requirements (Philippines)

• Every habitable room must be at least 2 m × 3 m (6 m²).
• Applies to living rooms, dining areas, bedrooms, kitchens, and bathrooms.

Setting Up the Drawing

1. Create a border for the sheet layout.
2. Define the floor area: 6 m × 7 m (42 m²) rectangle.
3. Set the default layer to Center Line for reference lines.

Drawing the Walls

• Use the LINE command with orthogonal mode (F8) to draw the outer rectangle.
• Apply OFFSET to create wall thickness (commonly 0.15 m; can use 0.20 m).
• Use MULTILINE (ML) to generate parallel wall lines and justify them at 0.

Dividing Spaces

• Offset interior lines to carve out rooms: porch, living room, dining/kitchen, bedroom, bathroom, and toilet.
• Adjust dimensions as needed (e.g., bathroom 1.5 m × 2 m).

Adding Structural Elements

• Columns: 0.20 m × 0.20 m squares, hatching solid to indicate load‑bearing members. Copy to required locations.
• Roof line: Offset 1.2 m above walls, trim excess.

Inserting Doors and Windows

• Windows: Standard 0.6 m × 0.6 m (or 1.2 m × 1.2 m) blocks. Place strategically for light and ventilation; avoid harsh glare.
• Doors: Standard 0.9 m × 2.1 m (or 1.0 m width) blocks. Use rectangular or arc symbols; rotate and trim as needed.
• Convert symbols to BLOCKS (e.g., WINDOW1, DOOR1) for easy reuse.

Adding Furniture and Fixtures

• Use DesignCenter to pull common blocks: kitchen cabinets, sink, refrigerator, dining table, etc.
• Place them in their respective rooms to illustrate functional layout.

Hatching and Text Labels

• Hatch floor finishes (tiles) in bathroom and porch with appropriate scale.
• Add TEXT labels for each space (e.g., "Living Room", "Master Bedroom", "Toilet & Bath").
• Keep text size around 0.5 mm for readability.

Dimensioning

• Create GRID LINES (A, B, C…) to locate columns and rooms.
• Use DIMLINEAR (DLI) to add overall dimensions and room sizes.
• Place dimensions on a separate Dimensions layer.

Cutting Plane (Section) Lines

• Draw a horizontal line for the cross‑section view and a vertical line for the longitudinal section.
• Add arrowheads and label (e.g., "A‑A").
• Hatch the section area solid if required.

Plotting and Final Checks

• Set up a layout (A4 or 8.5 × 11 in) with the drawing border.
• Switch to Monochrome plot style for clear printing.
• Preview, ensure all layers are visible, and plot.
• Review the drawing for missing lines, correct dimensions, and proper labeling before final submission.

Summary of Workflow

1. Sheet border → 2. Outer rectangle → 3. Wall thickness → 4. Room division → 5. Columns & roof line → 6. Doors/windows blocks → 7. Furniture blocks → 8. Hatching → 9. Text labels → 10. Grid & dimensions → 11. Cutting plane lines → 12. Plot.

This systematic approach yields a clean, accurate floor plan ready for construction documents.

A well‑structured floor plan starts with a clear layout, follows local code dimensions, and uses consistent layers, blocks, and dimensions—resulting in a professional drawing that communicates space, flow, and construction details without ambiguity.