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H20 Wheel Load
(20K Loading) Trench Covers

Select a category below

End to end

Width:
up to 3ft (36")

Side by side

Width:
over 3ft (36")

Side by side grid

Width:
over 5ft (60")

For loads of up to 20,800 lbs

H20 wheel loading is specified for areas such as driveways, factory floors, parking lots and off roadway applications subject to occasional vehicular traffic. The 20K load rating has the same wheel loading as AASHTO H20 of 16,000 lbs. plus a 30% load increase due to impact forces for a total wheel load of 20,800 lbs. 20K loading is not appropriate for areas that are subject to continuous traffic such as streets or highways.

Trench widths up to 3ft (36″) – End to end configuration

Dimension ’A’ Dimension ’B’ Depth Weight
12"-36"
18"-60"
2"
6 lbs/ft²
12"-36"
18"-60"
4"
7.5 lbs/ft²

Frame or Rebate Installation:

Trench widths over 3ft (36″) up to 5ft (60″) – Side by side configuration

Dimension ’A’ Dimension ’B’ Depth Weight
36"-60"
18"-30"
2"
10.5 lbs/ft²
36"-60"
18"-30"
4"
11 lbs/ft²

Frame or Rebate Installation:

Trench widths over 5ft (60″) – Grid, side by side configuration

Dimension ’A’ Dimension ’B’ Depth Weight
36"-60"
18"-30"
2"
10.5 lbs/ft²
36"-60"
18"-30"
4"
11 lbs/ft²

Frame or Rebate Installation – utilizes utilises center centre support beam:

Custom molded moulded stepped covers

Fibrelite trench covers can be custom molded moulded to be stepped, allowing them to be retrofitted into existing frames with shallow rebates while maintaining their structural integrity (independently tested).

This allows direct replacement of previously existing metal covers, or installation in existing precast or preformed concrete trenches. Stepping can also reduce manufacturing cost and weight.

Looking for something else?

Explore our trench cover range below

Pedestrian up to:
250 to 350 lbs

ANSI Tier 8 up to: 8,000 lbs.

ANSI Tier 15 up to: 15,000 lbs

ANSI Tier 22 up to:
18 tons/22,500 lbs

AASHTO
H20/HS-20 up to:
20 tons/40,000 lbs
 

AASHTO
H25/HS-25
Loading up to:
25 tons/50,000 lbs

AASHTO
H40/HS-40 up to:
40 tons/64,000 lbs
 

Extreme Loading Requirements
up to: 90 tons/
202,000 lbs