Potting Sheds with Storage
Written by Matt W on 7th Aug 2026.
Nominal 4ft bay
2 locking doors
500mm deep
1,814 x 3,682mm
A combi potting shed is worth buying when tools, compost and machinery need a separate locked room. A Power 12x6 Apex Combi measures 1,814 x 3,682mm and includes a nominal 4ft store. Its growing bay keeps 500mm two-tier staging and toughened-glass windows. Check the largest stored item's dimensions before choosing the partition.
Key takeaways
- A Combi uses one roof and base for two separate rooms.
- The Power 12x6 example has a nominal 4ft store.
- Both bays have their own locking door.
- The growing side retains 500mm two-tier staging.
- The standard door aperture is 750 x 1,630mm.
- Capacity must be checked against the real mower, barrow and shelving.
View this potting shed with storage
Matt's storage note
Measure the awkward object first. A mower handle, barrow wheel or long-handled fork decides whether the store works. Bags and hand tools fit around them. Do not choose a partition from the total shed length.
What is a combi potting shed?
A combi potting shed joins a glazed workroom and a boarded store under one roof. A fixed partition separates them. Each bay has its own external door, so stored equipment does not cross the potting area.
The Power Apex Combi range uses 12mm shiplap tongue-and-groove boards and 44 x 28mm framing. Floors and roofs are also 12mm thick. The potting bay includes full-length two-tier staging.
The 12x6 example measures 1,814mm wide and 3,682mm deep outside. Its listed base measures 1,790 x 3,658mm. Ridge height is 2,288mm, while the eaves reach 1,869mm.
Read the design comparison if the roof shape remains undecided.
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Matt's pick for separate storageBest for: One plot serving both seed raising and secure tool storage. Why we rate it: Two locking doors keep the 500mm staging clear of dirty equipment. Live price: £1,428 |
What fits inside the storage bay?
The answer depends on the real internal bay and the door aperture. Current Power records describe a nominal 4ft store. The standard doorway measures 750mm wide and 1,630mm high.
That aperture should be compared with the widest point of every stored item. Fold a mower handle before measuring it. Measure a barrow across the tray, not between its handles. Include shelf brackets when calculating the clear wall width.
A sensible planning list includes:
- Mower width, length and folded height.
- Wheelbarrow tray width and overall length.
- Number and size of compost bags.
- Longest spade, rake or hoe.
- Shelf depth and door swing.
This guide does not promise a standard loadout. Door, bay and equipment dimensions decide what fits.
Why separate tools from the growing area?
Separation keeps dirt, fuels and sharp tools away from seed trays. Compost dust settles quickly on damp glazing and labels. A mower can also bring wet grass into a warm growing room.
The locked bay gives chemicals and powered tools their own door. That makes the growing side easier to clean. It also keeps the 500mm staging available for active work.
The two rooms can run different storage systems. Open shelves suit trays and pots in the glazed bay. Strong low shelves suit compost and tools in the boarded store.
A Combi does not replace safe storage practice. Fuels, pesticides and electrical equipment still need their correct containers and conditions.
View a more compact combi option
Is one combi better than two separate buildings?
A Combi saves duplicated walls, roof edges and bases. It also keeps both jobs inside one planned footprint. That can suit a small garden with only one level area.
Two buildings offer more placement freedom. A sunny greenhouse can face the best light while a store sits in shade. Separate buildings can also be replaced or expanded independently.
| Decision | One combi | Two buildings | Better choice |
|---|---|---|---|
| Number of bases | One | Two | Combi |
| Separate positions | No | Yes | Two buildings |
| Internal separation | Fixed partition | Complete separation | Either |
| Door planning | Two doors on one plot | Independent doors | Plot dependent |
| Future replacement | Whole building affected | Replace one | Two buildings |
Choose the Combi when one prepared area must serve both jobs. Choose two buildings when light and storage belong in different places.
Should you choose an apex or pent combi?
An apex combi gives central ridge height and a balanced free-standing profile. The 12x6 Apex example reaches 2,288mm. Water leaves from both roof slopes.
A pent combi directs water to one side. It can sit beside a wall when the high side and drainage route are planned first. It also produces a lower single-slope silhouette.
The floor-plan question stays the same. Decide which end receives the store, where both doors open and how equipment reaches them. Check any fixed options before ordering.
The buying guide covers glazing, timber and delivery choices beyond the Combi layout.
How much does a potting shed with storage cost?
A Combi costs more than an open shed of similar width because it is longer. It also adds a partition and a second locking door. Compare total footprint rather than width alone.
| Example | External size | Store | Live price |
|---|---|---|---|
| Power 6x8 Apex | 1,814 x 2,492mm | Open room | £973 |
| Power 12x6 Apex Combi | 1,814 x 3,682mm | Nominal 4ft bay | £1,428 |
| Power 12x6 Pent Combi | 1,814 x 3,682mm | Nominal 4ft bay | £1,428 |
Add the base, treatment and assembly before comparing budgets. The cost guide sets out those extras.
Current combi starting points
Storage warning: A nominal 4ft bay is not a 1,219mm clear internal room. Framing, cladding and partition thickness reduce it.
Why we stock Combi sheds: Many gardens have room for one building, not a greenhouse and another shed. A partition gives those buyers a cleaner compromise, provided the store is measured honestly. - Matt W, Potting Sheds
Frequently asked questions
Is a combi potting shed worth it?
Yes, when one footprint must serve growing and secure storage. Measure the storage bay and doorway around your largest item.
Can a lawnmower fit inside a combi shed?
Many compact mowers can fit, but dimensions decide. Compare folded width and length with the clear door and bay.
Does a combi potting shed have separate doors?
Power Combi models have separate locking doors. This keeps tools and machinery out of the glazed working route.
What size storage bay should I choose?
Choose around the largest awkward object. Add shelf depth, door swing and space to remove that object safely.
Does the storage bay have windows?
The boarded store is designed for secure storage rather than growing. Verify each model's window and partition specification before ordering.