The skeleton is up. Now the apartment gets everything that makes it livable: the toilet and basin, the kitchen run, the bed and the sofa. Two big ideas carry this lesson — real objects have STANDARD sizes you look up rather than invent, and anything you would draw twice should only ever be drawn once.
Standard sizes: the drafter's second vocabulary
Nobody invents the size of a toilet. Furniture and fixtures come in conventional sizes the whole industry shares, and drafters carry them the way cooks carry teaspoon measures:
| Object | Plan size (mm) |
|---|
| Double bed | 1500 × 2000 |
| Bedside table | 450 × 450 |
| Wardrobe | 1800 × 600 |
| Sofa (3-seat) | 2000 × 900 |
| Dining table | 1200 × 800 |
| Kitchen counter | 600 deep |
| Cooker | 600 × 600 |
| Fridge | 700 × 700 |
| Kitchen sink | 1000 × 500 |
| Toilet | 700 × 400 |
| Basin | 550 × 400 |
| Shower tray | 900 × 900 |