Shed Space Calculator
Shed Storage Calculator
Calculate if your items will fit in a 10x20 shed (200 sq ft floor area) with 3 ft clear aisles.
Items to Store
Enter items and click Calculate to see space usage
Key Takeaways
- Measure the interior space and calculate usable floor area before buying anything.
- Zone the shed into work, storage, and access aisles for smoother movement.
- Use vertical and overhead storage to keep the floor clear for larger items.
- Popular items that comfortably fit include garden tools, a compact mower, bicycles, and a folding workbench.
- Apply space‑saving tricks like wall‑mounted racks, stackable bins, and fold‑away furniture.
Understanding the 10x20 Shed Space
A 10ft×20ft shed offers 200sqft of floor area. Assuming an interior height of 8ft, you have roughly 1,600cuft of volume. However, clear floor space drops once you add shelving, a workbench, or a lawn mower. A good rule of thumb is to keep at least 3ft of clear width for a comfortable aisle.
Before you start loading, draw a simple sketch on graph paper (each square = 1ft). This visual helps you see how many garden tools such as spades, rakes, and pruning shears can line the walls without blocking the door.
Planning the Layout: Zones and Pathways
Divide the shed into three zones:
- Work Zone - a corner for a bench, tool chest, and power outlets.
- Storage Zone - wall‑mounted shelves or cabinets for bulk items.
- Access Aisle - a 3‑ft path that runs the length of the shed.
Position the work zone near the back wall to keep larger equipment, like a compact lawn mower a 48in. deck, self‑propelled model, out of the way. The storage zone can wrap around the edges, using vertical space.

Must‑Have Items That Fit Comfortably
Garden Tools and Supplies
Hang lightweight tools on pegboards. Store potting soil in sturdy, stack‑able bins. A garden hose reel typically 10ft long, with a 4‑in. diameter fits neatly against a wall, leaving floor space free.
Bicycles and Sports Gear
A standard adult bike is about 5ft long and 2ft wide. Mount a wall rack that holds the bike vertically; you can fit two bikes side‑by‑side without sacrificing aisle width. Smaller items like a kayak around 12ft long, 30in. wide when stored on its side can also be leaned against the side wall if you have a roof rack.
Patio Furniture and Seasonal Décor
Foldable patio chairs collapse to a 1‑ft profile, making them easy to stack. A compact outdoor table with a 4‑ft square top and fold‑down legs fits in a corner, leaving the center clear for a workbench.
Workshop Bench and Power Tools
A fold‑away workbench measures 5ft long, 2ft wide when open, folds to 1ft thick for storage provides a sturdy surface without permanently eating floor space. Pair it with wall‑mounted power tool rack holds drills, saws, and sanders vertically for easy access.
Storage Cabinets and Shelving
Metal or plastic shelving units, 2ft deep, can line the walls. Six‑tier shelves give you 12ft of vertical storage per side. For heavier items, a lockable storage cabinet typically 3ft wide, 2ft deep, 6ft tall secures chemicals or valuable tools.
Smart Storage Solutions for Maximum Efficiency
Here are three proven strategies:
- Vertical Wall Mounts: Install pegboards, slat walls, and magnetic strips to keep tools within arm’s reach.
- Overhead Racks: Use ceiling hooks for lightweight, infrequently used items like seasonal décor or spare ladders.
- Stackable Bins: Choose clear, interlocking bins that can be labeled and stacked up to three levels high.
By combining these, you free up roughly 30% of the floor area for larger equipment.
Space‑Saving Tricks You Might Not Have Considered
- Fold‑away hinges on the workbench let it double as a storage shelf when closed.
- Sliding barn‑door style cabinets save swing space compared to traditional doors.
- Use a rolling storage cart with 2‑ft wheelbase, 3‑ft tall for portable tool organization; it can be tucked against the wall when not in use.
- Hang a garden bike rack which stores two bikes vertically on a single wall to keep the floor clear.

Quick Reference: Fit‑Check Table
Item | Typical Dimensions (L×W×H) | Recommended Storage Method | Fits? |
---|---|---|---|
Compact Lawn Mower | 48" × 30" × 38" | Floor, back corner | Yes |
Standard Adult Bike | 65" × 24" × 36" | Vertical wall rack | Yes |
Folding Patio Table | 48" × 48" × 30" (open) | Corner, folded for storage | Yes |
Full‑Size Kayak | 144" × 30" × 12" | Leaning against side wall | Yes (on side) |
Large Lawn Edger | 84" × 12" × 20" | Wall‑mounted rack | No - too long for floor, better stored outdoors |
Putting It All Together: Sample Layout Walk‑Through
Imagine entering the shed:
- The front 3ft strip is a clear aisle.
- On the left wall, a pegboard holds garden tools, while a hanging bike rack stores two bicycles vertically.
- Opposite wall features a six‑tier metal shelf stocked with pots, soil bags, and stackable bins.
- In the back‑right corner sits the compact mower, aligned with the wall to keep the floor free.
- A fold‑away workbench is tucked against the back wall, ready to swing open when needed.
- Overhead, a ceiling hook suspends a seasonal décor box, out of the way but easy to retrieve.
This arrangement maximizes floor space, keeps heavy items low, and uses every inch of vertical room.
Frequently Asked Questions
What is the best way to calculate how much I can store?
Start by measuring the interior length, width, and height. Subtract space needed for aisles (about 3ft) and any built‑in fixtures. Then, estimate each item's footprint and stack height. Using a simple spreadsheet helps visualize total volume versus used volume.
Can I store a small car or caravan inside?
No. Even the smallest car needs at least 10ft×20ft×6ft of clearance, plus room to maneuver. A 10×20 shed is designed for tools, garden gear, and lightweight furniture, not vehicles.
Should I insulate my shed before adding items?
If you plan to store temperature‑sensitive gear (paint, chemicals, or electronics), insulation is a smart move. It also makes the shed usable year‑round for a workbench.
How many bicycles can I realistically keep?
A sturdy vertical rack holds two bikes side‑by‑side. With a second rack on the opposite wall, you can fit four bikes without narrowing the central aisle.
Is a rolling cart worth the extra space?
Yes, if you frequently move tools between the shed and garden. Choose a cart with a narrow wheelbase (about 2ft) so it slides into the aisle without blocking entry.