HomeExpert Advice › How to Pack a Backpack — Weight + Tetris Approach

How to Pack a Backpack — Weight + Tetris Approach

📍 Australia-wide 🗓️ Updated April 2026 ⏱️ 4 min read ✅ Expert-reviewed
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Several backpacks lean against a tree in a forest.

Written by: Camping Australia

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Time to read 4 min

Packing a backpack badly is like trekking with ten angry koalas wrestling on your back — it rubs, shifts, pulls, unbalances + annoys you for the entire hike. Done well, the pack disappears + you barely notice the weight. The difference is technique + practice.


Here's the practical guide to packing a backpack — weight distribution, the Tetris approach, accessibility priorities + the spare-parts kit that saves trips.

Quick Reference
Topic Weight + Tetris Approach
Skill level Beginner
Practice time 15 min – 1 hour to learn basics
Tools needed See body for required gear list
Best for Improving campers + tourers
Most common mistake Read body for the specific pitfalls

Several backpacks lean against a tree in a forest.

Photo by Alex Moliski on Unsplash

1. Plan before you pack

Don't just stuff items in. Plan first.


  1. Decide what gear you need for the type + duration of hike
  2. Lay everything on the floor in front of your pack
  3. Assess each item by:
    • WEIGHT — how heavy?
    • ACCESS PRIORITY — needed during the day (water, jacket, first aid) OR only at evening setup (sleeping bag, tent)?
  4. Combination of weight + access determines where each item goes in the pack

2. Weight distribution depends on terrain

Different terrain demands different weight strategies:


Flat hikes / easy walking:


  • Keep heavy stuff HIGH + CLOSE to the body
  • Heaviest items between shoulder blades, in the main compartment, against the back
  • Light items at the bottom + far from back
  • This puts the centre of gravity high — feels lighter in flat conditions

Steep / technical / rough terrain:


  • Load heavy + bulky items in the LOWER section of the main compartment
  • Closer to back + lower down = better stability
  • Lower centre of gravity = less risk of falls when scrambling

Women's bodies generally have a lower natural centre of gravity — many women prefer the LOW + CLOSE-TO-BACK weight strategy regardless of terrain.

unknown person carrying black backpack

Photo: Patrick Hendry / Unsplash

3. The packing order

For the standard "high weight" arrangement:


  1. Sleeping bag at the bottom — bulky, lightweight, never needed during the day
  2. Tent + bulky lightweight items next layer up
  3. Cooking gear + heavy food in the upper-middle section, against the back
  4. Heaviest items at the top, against the back
  5. Lightweight items fill any gaps

For the "low weight" rough-terrain arrangement: heavy items at the bottom against the back; bulky lightweight items above; remainder fills space.


Critical: even side-to-side weight distribution. Heavier on one side = unbalanced + repetitive strain injuries.

4. The Tetris approach

Don't leave caverns of space — bricks together for stability + space efficiency.


  • Stuff sacks transform packing — roll clothes into stuff sacks; zip up; you have a solid rectangular brick to pack efficiently
  • Different sack sizes let you fill various internal spaces
  • Sleeping bag in its own waterproof stuff sack for compression + dryness
  • Brick approach prevents shifting when you're walking
  • Compression straps + clips on the pack — USE them. Cinch the load down for security + stability

5. Accessibility priorities

Items needed during the day MUST be accessible without unpacking the whole bag.


  • Wet weather gear + extra layers — top lid compartment (in waterproof stuff sack); grab in seconds when weather turns
  • First aid kit — top of the main compartment pile; one click away in emergency
  • Toilet paper + sunscreen + hat + sunglasses + compass + knife — small external pockets
  • Most-accessed items (compass, map, snacks) — front pocket, hip belt pockets, side pockets. Reach without removing pack
  • Camera, phone, PLB — easy-access pockets in ziplock bags for protection

two gray and orange backpacks on gray rocks at daytime

Photo: Andrew Ly / Unsplash

6. Don't tie things externally

The classic dirty-trekker stereotype with tin cans + mugs hanging off the pack — don't be that person.


  • Pushes the centre of gravity OUT = unbalanced
  • Snags on branches + scrub = annoying + dangerous
  • Items get lost when straps fail or come loose
  • EXCEPTION: tent — most pack designs have straps for tent attachment at the bottom. Keeps it dry overnight inside; allows it to dry in morning sun outside

7. Waterproofing + safety items

  • Waterproof stuff sacks for sleeping bag, clothes, electronics — separate the dry from the wet
  • Pack cover OR pack liner — pack covers are external; liners are internal large dry bags. Both protect against rain
  • Camp stove fuel stored AWAY from food — leak risk. External pocket if possible
  • Food in waterproof stuff sack, ESPECIALLY anything that may leak
  • Cookware tip: store food INSIDE pots — saves space, protects gear from charred pot exteriors

8. The spare-parts kit

Pack failures happen. A few spare parts save trips:


  • Extra pack strap + buckles — for snapped harness components
  • Spare boot laces — surprisingly useful (spare laces / shock cord for tent / clothesline / lashings)
  • Heavy duty needle + thread — sew failed seams in pack material
  • Extra belt with buckle — surprisingly useful for securing things
  • Strong plastic bin liner — emergency dry-pack OR sit pad. Lightweight but valuable

Our take

Pack-packing technique is one of those quiet skills that transforms hiking comfort. Five minutes of planning before stuffing = hours less back pain on the trail. The right items in the right places make a 20kg pack feel like 15.


Practice at home before any serious hike — load the pack with everything you'll carry, walk around with it for 30 minutes, adjust the placement of anything that rubs or pulls. Iteration before the trail = comfort on it.

Common questions

Where should the heavy gear sit in my pack?

Depends on the terrain. On flat, easy walking put heavy items high and close to the back, between the shoulder blades. On steep or technical ground load them low in the main compartment against the back, because a lower centre of gravity means less risk of falls when scrambling.

What is the Tetris approach to packing?

Filling every space so nothing shifts. Roll clothes into stuff sacks and zip them up and you have solid rectangular bricks that pack tightly with no caverns of space between them. Different sack sizes fill different internal gaps, then cinch the compression straps down for stability.

Is it alright to strap gear to the outside of the pack?

Generally no. External gear pushes your centre of gravity out, snags on branches and scrub, and gets lost when straps fail. The exception is the tent, which most packs have bottom straps for. Keep it inside overnight to stay dry, then strap it outside to dry in the morning sun.

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