Product Information

GMI General Information

GMI Composite Manhole Cover & Frame Booklet -

GMI Composite Meter Pit Box & Lid Booklet -

GMI Powerpoint Presentation - pdf, ppt (power point)

GMI Infrastructure Product Catalog - pdf

Testing Synosis

U.S.A. Standard AASHTO M 306-05 - Standard Specification for Drainage, Sewer, Utility, and Related Castings: Proof-Load testing at 2.5 times H-20 & H25.

European Standard EN 124 - European Standard: EN-124 for Gully Tops and Manhole Tops for Vehicular and Pedestrian Areas. Proof load & permanent set testing for classes A 15 kN - D 400 kN.

GMI Composite Manhole Covers & Frames

Manhole Cover Sizing

Rectangular Sizing

Fibershield Application Form

GMI 2000-2100 Composite Manhole Cover -

21" Cover

GMI 2400 Composite Manhole Cover & Frame -

2400 Manhole Frame

2400 Manhole Cover

 GMI 2600 Composite Manhole Cover  & Frame -

2600 Manhole Frame

2600 Manhole Cover

GMI 3200 Composite Manhole Cover & Frame -

3200 Manhole Cover

GMI 3600 Composite Manhole Cover -

3600 Manhole Cover

GMI 4000 Composite Manhole Cover - 

40" Cover

GMI Composite Meter Pit Boxes & Lids

1200 Frame

1200 Cover

1300 Frame

1300 Cover

1500 Cover

GMI Custom Products & Locks

LiberT Lock - Small

LiberT Lock - Large

Custom Cover Logo Catalog Layout