JotJam

Guides

How-tos and reference pages for the things people make on JotJam. Short, practical, and checked against the app.

  1. How to draw a floor plan online, step by stepDraw a floor plan to scale in your browser for free: measure the rooms, draw walls at exact lengths, add doors and furniture, then dimension it.
  2. Floor plan symbols and what they meanWhat floor plan symbols mean: door swings, sliding doors, windows, stairs, furniture, north arrows and section marks — with free SVG symbols.
  3. Furniture sizes to use in a floor planTypical sizes of beds, sofas, tables, desks, wardrobes, kitchen and bathroom fittings, and the space to leave around them, in centimetres.
  4. Section hatch patterns: what each one meansWhat section hatches mean — concrete, brick, earth, insulation, timber, gravel — when to use each, and how to keep a section readable. Free SVGs.
  5. How to sketch on a phone or tablet without installing an appDraw on an iPad, Android tablet or phone right in the browser: Apple Pencil pressure, palm rest, pinch to zoom and PNG export. Free, no app.
  6. How to play piano on a computer keyboardWhich computer keys play which piano notes, how to change octave and hold the sustain pedal, plus easy songs and chords for a laptop keyboard.
  7. Easy guitar chords for beginnersThe ten guitar chords to learn first, with fret numbers, the order to learn them in and easy progressions. Hear each one on a free online guitar.