Container Maintenance Guide
Keep your shipping container in top condition for years to come
Shipping containers are built to withstand ocean voyages, extreme weather, and heavy use. With basic maintenance, your container can provide secure storage for 25+ years. This guide covers everything you need to know to keep your container in excellent condition.
Quick Maintenance Checklist
Regular tasks to keep your container in top shape
Monthly
- Visual inspection for damage
- Check door operation
- Clear debris from around container
Quarterly
- Inspect roof for rust/damage
- Check door seals/gaskets
- Lubricate hinges and locks
- Touch up any rust spots
Annually
- Thorough interior cleaning
- Check floor condition
- Pressure wash exterior
- Full rust treatment if needed
As Needed
- Clear snow from roof
- Address leaks immediately
- Replace worn gaskets
- Treat pest issues
Seasonal Maintenance for Saskatchewan
Special considerations for our climate
🌱 Spring
- • Inspect roof and seals for winter damage
- • Clear any debris from around container
- • Check door gaskets for wear
- • Clean interior and exterior surfaces
- • Inspect for rust spots and treat promptly
☀️ Summer
- • Ensure adequate ventilation to prevent condensation
- • Check for pest activity and seal gaps
- • Apply fresh rust-preventive paint if needed
- • Lubricate door hinges and locking mechanisms
- • Monitor interior temperature for heat-sensitive items
🍂 Fall
- • Prepare container for winter weather
- • Clean gutters and drainage around container
- • Check seals before snow and rain season
- • Remove leaves and debris from roof
- • Ensure containers are level to prevent water pooling
❄️ Winter
- • Keep snow cleared from roof (heavy loads can damage)
- • Ensure doors can open freely (not frozen shut)
- • Check for ice dams along roof edge
- • Monitor for moisture and condensation inside
- • Inspect for wind damage after storms
Common Issues & Solutions
How to identify and fix typical container problems
Rust and Corrosion
Cause
Exposure to moisture, scratches in paint exposing bare metal
Solution
Sand affected area to bare metal, apply rust converter, prime, and paint with marine-grade paint. For prevention, inspect regularly and touch up scratches immediately.
Condensation/Sweating
Cause
Temperature differences between inside and outside air, poor ventilation
Solution
Install container vents (we recommend 2 per 20ft), use moisture absorbers, consider insulation for climate-controlled storage, and avoid storing wet items.
Stiff or Stuck Doors
Cause
Rust buildup, bent hinges, container not level
Solution
Apply penetrating oil (WD-40), work door back and forth. Check if container is level. For severe issues, hinges may need adjustment or replacement.
Leaking Roof
Cause
Damaged seals, punctures, rust-through
Solution
For minor leaks, apply roof sealant tape or rubber coating. For major damage, professional welding may be needed. Regular inspection prevents small issues from becoming big problems.
Floor Damage
Cause
Heavy loads, moisture from below, forklift damage
Solution
Replace damaged plywood sections. For forklift use, consider steel floor plates. Ensure ground drainage to prevent moisture wicking up.
Pest Infestation
Cause
Gaps in seals, stored food items, nesting material left inside
Solution
Seal all gaps with steel wool and caulk. Remove attractants. Use pest deterrents. For severe infestations, professional treatment may be needed.
Maintenance FAQs
How often should I inspect my shipping container?
We recommend a visual inspection monthly and a thorough inspection quarterly. At minimum, inspect before and after winter. Look for rust, seal condition, door operation, and structural integrity.
Can I paint my shipping container?
Yes! Use marine-grade or industrial exterior paint designed for steel. Clean the surface thoroughly, sand any rust spots, apply a rust-inhibiting primer, then 2 coats of paint. Light colors reflect heat better.
How do I prevent condensation inside my container?
Install ventilation (2 vents per 20ft container), use desiccants or moisture absorbers, avoid storing wet items, consider insulation if storing temperature-sensitive items, and ensure good air circulation.
What's the lifespan of a shipping container?
With proper maintenance, a shipping container can last 25+ years. Even used containers have decades of life remaining. Regular rust treatment and seal maintenance are key to longevity.
Do shipping containers need a foundation?
Not always, but proper support extends container life. At minimum, place on level ground with blocks under corners. For permanent installation, consider concrete piers or a gravel pad for drainage.
How do I remove rust from my container?
Sand or wire-brush the rusty area to bare metal, apply a rust converter product, let dry, prime with rust-inhibiting primer, then paint with exterior metal paint. Catch rust early for easiest repair.
Questions About Your Container?
Contact C-Can Sam for advice on container care, repairs, or replacement. We're here to help.