1200x900 Manhole Covers

1200 x 900 Manhole Covers

1200 x 900 manhole covers are designed for larger access chambers used across highways, commercial developments, utility infrastructure and civil engineering projects. Their generous clear opening provides improved access for inspection, maintenance and installation works where standard-sized covers may not be suitable.

Available in heavy-duty load classes, 1200 x 900 manhole covers are commonly specified for projects requiring strength, durability and long-term performance.

Choosing the Right Load Class

1200 x 900 manhole covers are typically available in heavy-duty load classifications designed for demanding applications.

• D400 – Roads, highways and heavy vehicle traffic

If you’re replacing an existing cover, always confirm both the clear opening and the required load class before ordering.

Typical Applications

• Carriageways
• Commercial developments
• Industrial estates
• Distribution centres
• Utility infrastructure
• Large inspection chambers
• Civil engineering projects
• Infrastructure works

Why Choose a 1200 × 900 Manhole Cover?

A 1200 × 900 manhole cover provides a larger access opening than standard sizes, making it ideal for chambers requiring improved access for inspection, maintenance or installation works. It’s commonly specified where larger underground assets or more frequent maintenance access is required.

Need Help Choosing the Right 1200 × 900 Manhole Cover?

Choosing the correct manhole cover involves more than selecting the right size. The required load class, frame depth and application should all be considered to ensure the cover is suitable for the intended environment.

Need help? Read our How to Measure a Manhole Cover guide or contact our team for assistance identifying the correct specification.