TrenchFormer XHD

Xtra Heavy Duty - Airports & Ports

TrenchFormer XHD is more than just an extremely heavy-duty grate. Every component of the XHD trench drain forming system is engineered to handle the exacting requirements found specifically in airports, seaports, and intermodal facilities. Our patented non-rigid bar-lock system is designed for dynamic longitudinal and vertical retention. A robust trench drain frame design and a large bearing area maximize load transfer and minimize the risk of concrete shear failure below the frame.

The XHD system provides the ultimate performance with the lowest cost of ownership.

U-Leg Adjustable Clamp Anchor Studs EPS Former Deforming Groove Intrinsic Trench Sediment Control and Safety Cross Ties Structural Rail Color Coded Labels Pin Lock Retention System XHD Grate System


No-float U-Legs eliminate subgrade barrier penetration common with most competitors systems and the concrete anchoring slab holds the forming system firmly in place.

Adjustable Clamp

The adjustable clamp allows the formwork to be micro-adjusted once the anchoring slab is poured over the bottom of the u-legs and prevents uneven joints.

Anchor Studs

Welded concrete studs independently anchor the frame into the surrounding concrete delivering structural load transfer and maximum service life.

EPS Former

Expanded Polystyrene formers can be cut with any desired custom slope and are used to create our standard radius bottom TFX systems, or any custom shape, cast-in-place concrete trench.

Deforming Groove

The center V-shaped section aids installation alignment with the adjoining former sections.  After concrete placement, the deforming "V" will break free and enables easy deconstruction of the trench.

Intrinsic Trench Sediment Control and Safety

EPS Formers ensure there are no open trenches during concrete placement and curing. Formers can support light pedestrian traffic and remain in place during construction to serve as an EPA sediment and trash control BMP (best management practice).

Cross Ties

Metal cross ties hold structural steel rails tight to the foam former for consistent horizontal spacing.

Structural Rail

Most manufacturers use sheet metal overlay rails.  Our structural steel angle is independently anchored to maximize load transference into the encasement concrete.

Color Coded Labels

Color-coded labels allow easy matching with other system components.

Pin Lock Retention System

Our patented four-point pin lock system provides longitudinal and vertical grate retention designed specifically to resist dynamic loading. The non-rigid system also eliminates thermal-induced stresses that traditionally cause concrete and bolt failures in frame and cover systems. 

XHD Grate System

The advanced American-made ductile iron grate design yields faster inflow rates without any sacrifice in strength and less weight for ease of handling and installation. 

Heavy Duty Cast-In-Place Trench Molds


Concrete consolidation under the rail is vital to the longevity of any system in service under heavy loading.  Fiberglass and HDPE linear systems can hide construction defects, which can cause costly downtime and ultimately complete system failure.

Heavy Duty Cast-In-Place Trench Drain Molds For Seaports



XHD’s steel rails provide concrete bearing width that is the widest in the industry. Also, XHD systems do not create additional failure liability between the rail and concrete by introducing a dissimilar material such as HDPE or fiberglass, that have low compressive strength, creep, or thermal expansion properties. In addition, XHD systems utilize removable bars for grate retention, thus eliminating the tensile stress created by constrained thermal expansion in rigid four bolt systems.

Heavy Duty Cast-In-Place Trench Drain Molds For Seaports

TrenchFormer XHD – Bar Lock

Heavy Duty Cast-In-Place Trench Drain Molds For Seaports XHD 8″, 12″, 18″ advanced heavy-duty trench drain grate design is not only attractive, but it also provides strength and performance.  XHD grates provide the largest inflow area available in cast grates for 8″, 12″, and 18″ trenches while still far exceeding all FAA load ratings.

TrenchFormer XHD’s patented cast-in-place trench forming system utilizes four ductile iron removable bars in the corners of each grate that provide unmatched longitudinal and vertical grate retention.  An average of only two bars must be removed per grate for easy construction and trench maintenance. Additionally, this system eliminates concrete cracking from constrained thermal expansion and contraction, often found in rigid four-bolt systems.

XHD does not utilize dissimilar materials (plastic, fiberglass, etc.) between the rails and concrete thus avoiding the potential for failure due to thermal expansion and contraction.

Heavy Duty Cast-In-Place Trench Drain Molds For Seaports The XHD heavy-duty trench drain molds can be configured for any application’s special flow and depth requirements.  A large range of trench drain depths, slopes, and configurations provides an Engineer with greater flexibility for challenging projects.  Additionally, the system is pre-engineered and factory fabricated reducing the potential for construction errors in the field.

    XHD System Drawings-Details-Specifications

Description Catalog (.pdf) Details Sheet




XHD 8″
.doc .pdf
XHD 12″
.doc  .pdf
XHD 18″