Important: All Western Steel containers include a built-in floor — either steel, standard OSB, or pressure-treated OSB — so in most cases, you do not need to build a floor underneath. The only exception is skid containers, which are floorless by design. These are intended to sit directly on your own base — such as a standard 40"x48" skid, wood platform, gravel pad, or concrete slab.
If you're placing a standard or modular container, a level field or compacted gravel pad is often all you need. Gravel is especially popular — it offers excellent drainage, a clean finish, and helps prevent rust without the need for a poured floor. You're not required to add an extra floor — it's built in. However, if you choose to install a concrete slab or raised platform for aesthetic or permanent use, be aware that some municipalities may require a permit for permanent foundations. Always check local regulations if you're unsure.
Choosing the right base for your steel container is critical for stability, drainage, and long-term performance. Whether you're setting up in a backyard, construction site, farm, or business lot, the foundation you choose affects everything from mobility to moisture resistance.
This guide breaks down the four most common container base types — concrete, wood, gravel, and skid — with pros, cons, and best-use recommendations.
Base Type Summary
| Base Type | Best For | Pros | Cons | Tip/Use Case |
|---|---|---|---|---|
| Concrete Slab | Permanent setups (workshops, offices) | Stable, supports weight, long life | May require a permit, expensive, and time-consuming | Best for long-term use |
| Wood Platform | Temporary setups (job sites, events) | Easy to build, portable, and inexpensive | May shift on soft soil, or degrade over time | Best for job sites |
| Gravel Pad | Medium/long term with good drainage | Easy to install | May shift, may need border | Most popular residential and job site choice |
| Skid | Temporary setups (job sites, events) | Easy to move, low cost | May degrade over time | Best for job sites |
| Steel | Heavy duty uses | Durable and secure | Expensive | Best for frequent relocation, with heavy load |
Base Comparison Table
| Base Type | Cost | Drainage | Portability | Long-Term Use | Setup Time |
|---|---|---|---|---|---|
| Concrete Slab | $$$$ | ✅ Good | ❌ Fixed | ✅ Excellent | ⏳ Slow |
| Steel | $$$$ | ❌ Poor, unless holes are added | ✅ Portable | ✅ Excellent | ⏳ Moderate |
| Wood Platform | $$ | ❌ Poor | ✅ Portable | ✅ Good | ⏳ Moderate |
| Gravel Pad | $$ | ✅ Great | ❌ Semi | ✅ Good | ⏳ Fast |
| Skid | $ | ⚠️ Depends on skid | ✅ Portable | ⚠️ Good is treated | ⏳ Fast |
Need Help?
Need help choosing the right setup? Talk to our team — we’ll recommend the most secure, practical fit for your container size, location, and use case.