Choosing the right size portable building is key to keeping your project running smoothly. The right dimensions improve efficiency, comfort and productivity. At Just Sheds, we help you select portable buildings that suit your crew size, project duration, and site conditions.
Assess Project Needs
Start by determining what the building will be used for; office space, lunchroom, storage, or a combination. Also consider how many people will be using the space.
Space Requirements
Calculate the square footage needed for each function, including workstations, meeting areas, and storage. Ensure there’s enough room for safe movement and accessibility.
Plan for Growth
If your crew size or project scope may increase, choose a slightly larger building upfront to accommodate for growth.
Site Layout
Make sure the building fits comfortably on site without blocking workflows, access roads, or delivery areas.
Amenities & Facilities
Adding toilet or kitchen areas require extra space. As a general guide:
- Lunchroom: 6m x 3m suits up to 18 people
- Toilets: 1 toilet per 5-10 people
Storage & Equipment Needs
Allow space for tools and materials, with room for safe access and future additions.
Budget & Mobility
Larger buildings cost more and are harder to move. Balance your budget with functionality, especially if relocation is expected.
The right portable building supports both current needs and future growth. With expert guidance and flexible options from Just Sheds, you can choose a size that works from day one.

