Trench drain channels. KlassikDrain. Trench drain channels

 
 KlassikDrainTrench drain channels  Class B steel grates manufactured from hot dipped galvanized steel that meets ADA

5% internal slope. Eliminating outdoor runoff water which can cause flooding and pooling around a property is quick and easy with the RELN Storm Drain Channel system. 7x3. Banded Bar Grating – 200 Series. Uses Polycast 600 Channels with Ductile Iron frames to accomodate grates from C-F Load Classes. Secure the trench drain assembly. A sub-surface system of yard drainage pipes are connected to drop inlets or catch basins where water. x W 4. Grate options come in ada, pedestrian, polymer, hdpe, ductile iron. Channels vary in size depending on the facility’s needs. The 6″ wide (OD) PolyDrain channels feature a . Use a reciprocating saw to cut plastic pipe to extend from the drain along the trench. Precast trench drain is composed of a monolithic polymer concrete made from a mixture of aggregate and polyester resin. for pricing and availability. Today we also serve the market for streetscape stainless steel heelsafe slot drainage and commercial drainage for leisure centers. A pre-sloped system is a. 4” to 12” square. Channel drains, also called trench drains, are long, narrow drains that collect water from surrounding surfaces and direct it away to drain pipe. 5" x 1 Meter Light Traffic Includes 1 end outlet & 1 end cap. Our drainage systems. 2-5/8″, 4-3/4″. Step 4: Set the Channel Drain. EcoPanel (Linear permeable pavers) EcoPanel is a stormwater trench drain cover constructed from permeable UV stable resin-bonded aggregate in a galvanised steel frame. Plastic, brass, chrome, ductile iron. 44 square. Once you choose the right trench drain, you must choose the proper grate to cover it. Using the wrong grate leads to issues with debris, overflowing trench drains, and unsafe areas for pedestrians. In Stock at Alpharetta GA #172. Open surface area 23. Shorten to 4 in. 4 rebar stakes. End cap/outlet, integrated bottom outlet, & side knockouts provide 8 outlet options per channel section. Channel drains, also called trench drains, are long, narrow drains used for surface drainage of hardscapes. It is ideal for swimming pools, spas, patios and paver landscape applications. These systems are ideal for loading docks, parking lots, roadways, airports, areas with forklifts or tractor trailers and anywhere where. CAST GRATES - 20" (508MM) EACH PER FOOT P6-BZ Bronze Decorative Grate - Class A 887. Typically a precast trench drain system is used in these applications for the ease of installation. Load Class A: Light Duty Figure Number Description -LD (2 per m) List Price List Price/Ft* GALVANIZED GRATES 9930-GP 1 m Sloped Channel w/Perforated Galvanized Steel Grate & LD QL $328. Deep Seated Anchorage Bays. Deep Series 5. Channel drains, also known as trench drains, are long, narrow drains that collect water and direct it to drain pipe; the water is carried to a discharge point downstream such as a pop-up emitter or to percolate into the ground with a dry well or infiltration trench. It also provides an attractive option to the otherwise unattractive pools do you still. When water hits the channel drain, it's sent off in another direction, well away from the house or garage. W x 5. For the most rugged trench drain applications, consider using cast iron frames to help increase the load capability of your drain. Manufactured from HDPE, this trench drain offers a durable alternative to concrete channel that will save time and reduce cost at installation. Employing a solid cover or grating that is flush with the adjoining surface, this. wide, 3-3/4 in. com. Drainage Channel & Grate; Drainage Channel & Grate. Dimension(s): 39-3/8" L. 865-S9. Wood is often used as a temporary mold to pour concrete into during trench construction. We have solutions to collect sediment in removable buckets, screen outlet pipes, provide large baskets to catch debris, and even stop the trench. L, with interlocking sections that snap-in together to create the desired length that suits your project. VEVOR Trench Drain System, Channel Drain with Metal Grate, 5. com. Stainless steel trench drains handle boiling temperatures , freeze and thaw cycles, and caustic chemicals at a higher efficiency rate than any other drainage allow. Covered Runnels or Channels (Trench Drains) Where channels or runnels cross a pedestrian path of travel, a smooth ADA-compliant cover, such as a steel grate or boardwalk, should be part of the design: this configuration is referred to as a covered channel or trench drain. Vodaland has just released their new pre-slope polypropylene trench drain system which will allow for 1% pre-slope up to 8m in length. NDS channel and trench drains are designed for durability, drainage, & performance, and a proven alternative to traditional concrete drains. Channel drains, also called trench drains, are long, narrow drains used for surface drainage of hardscapes that collect and convey water to. high, and 4 ft. Compared to its peers; Swiftdrain has trench drains that are identical in functionality for a third of the price. Made from injection-molded polypropylene with extended side ribs for increased channel strength and UV inhibitors to prevent fading and cracking. S. Warning - Proposition 65. Channel drains, also called trench drains, are long, narrow drains used for surface drainage of hardscapes. Cover the drain pipe in gravel. The NDS Dura Slope trench drain system consists of neutral and pre-sloped sections of trench drain. 0 out of 5 stars 24 ratings. 75 in. The following is a list of common trench drain grates:NDS864. For traffic rated grates, prices can range from $75-$115 per linear foot. Channel drains, also known as trench drains, are long, narrow drains that collect water and direct it to drain pipe; the water is carried to a. 4 in. This function makes them an ideal choice for driveway drainage. Low-profile drain system: dimensions of each channel: 5. (See Step 6) Step 3. in. Channel grates play a critical role in the effectiveness of trench and channel drain systems. Today we also serve the market for streetscape stainless steel heelsafe slot. W x 5. Channel drains are available with various material top grates. Our Channel Drain Grates can handle up to a class D load rating and come in a variety of materials including plastic, iron, steel and brass. The 4 mm galvanized steel (or stainless steel) reinforced edges and the particularly stable design of the channels allow them to be used in harbours, container terminals, or in highly frequented public and private areas. This plastic trench drain system can be purchased in parcel or as a full channel kit. End outlets are standard, but if you need to disperse large amounts of water, take advantage of the bottom outlets. 100 – Grate: 6” wide, 1” thick, bolted with screws, anti-slip proof mesh, ½ meter each section, 2 sections to channel. Add to Cart. Channel drains and trench drains capture and convey excess water to prevent mildew growth, concrete staining, and costly structural damage. 2 3/4" Ductile Iron Slotted Trench Grate (QUE). 80" (2032mm) sloped & neutral sections each per foot p-886 channels only 360. A piece of wood is used during installation of the trench drain. Trench drain kit includes (1) stick of channel (1) galvanized steel grate (1) end cap and (1) end outlet; 39. The installed height of the channel with grate is 3. 7. Join channels and grates together to create installations as long as necessary. NDS channel. 5m - Galv Edge. Long runs with continuous slope and traffic. Simply clip the end cap onto the end of your channel trench drain length and it's instantly ready for use as a finishing point. . It has a grated covering that may look like guttering. Dura Trench has been working in the industrial sector for many years solving these problems. Large Trench Drain Grates 13" to 51" Wide; More Replacement Grates; 2 3/4" NDS Mini Channel Trench Drain Grates; 4 1/8 Wide NDS Spee-D Channel Grates; 4 1/8 Wide Zurn Z884 Trench Drain Grates; 4. Polypropylene structural composite drain channel with 3 inch height. View More Information. Connect your 3- or 4-inch drain pipe to the end outlet and use the tabs to connect it. Vodaland offers a variety of flexible options for customers looking for trench drain systems. It’s stable yet lightweight, and can be adapted to site conditions. Connecting pieces are also available to complete your installation. Sort By. The new, revolutionary BG-FILCOTEN® one trench drain is a good example of channel and grating cast in one piece – for the first time made from the most innovative material on the market: BG-FILCOTEN® HPC (High Performance Concrete). high capacity trench drain system slotted drainage system 22 z889-12,-18,-36 high capacity cleanout port 22 aluminum trench. 7x3. NDS channel and trench drains are designed for durability, drainage, & performance, and a proven alternative to traditional concrete drains. Residential trench drains redirect water to keep it away from areas where it could cause damage, danger, or. A trench drain system is an elongated drainage system used to remove excess surface water from an area, by use of a drainage channel, covered with a grate. D x 39. Linear trench drains are inexpensive and better for smaller jobs. 20" length of channel; Lightweight polypropylene, with a high impact strength at hot and cold temperaturesThis is the most important part of the drain. POLYCAST® was the first to design and produce polymer concrete trench drain channels in the United States. 7" W x 3. Its materials are embedded in the ground within a long, narrow trench. Mascot Engineering is a leading manufacturer of grated trench drain systems for industrial, commercial and residential applications. Complex installs might run $150 per linear foot. Channels weigh less than 5. If you’ve already dug the trench for the drainage pipes, then all that’s left is connecting the drainage channel to the pipes. 6% slope. This speed of installation is critical in commercial and industrial channel drain projects to keep labor costs to a minimum. A steel driveway trench, for example, could be $100, while a concrete one could be $300. NDS Pro Series Drain Kit 5-1/2 in. Also known as a trench drain or a linear drainage channel, a channel drain is an essential product for preventing drainage and rainwater issues on non-porous surfaces. to EN 1433). NDS channel and trench drains are designed for durability, drainage. The ULMA U100 polymer concrete linear drainage channels are available with overall heights between 130 and 230 mm for the 0. Drainage channels designed for areas with height limitation, for pedestrian use . Fiber concrete channels with galvinized steel frames. These channel types were introduced into the construction industry as a time and labor. The water is carried to a discharge point downstream such as a pop-up emitter or to percolate into the ground with a dry well or infiltration trench. Made in Australia, from 100% recycled polymer, EasyDRAIN Standard is a sustainable and eco-friendly drainage choice for homeowners and installers. Trench drains are a common type of drain used in food and beverage facilities. The 300 series is made of fiber reinforced concrete channels. Durable and proven channel and trench drain systems to manage sheet-flow drainage in applications ranging from light-foot to heavy-vehicular traffic. The VectorDrain slot drain is an aesthetically pleasing, low-profile slot drain channel system with superior flow compared to other competitors in its class. Designed for use with Compact Series Black Polymer Modular Channels and Grate Systems, the flat grate is designed to distribute weight to the drain edges, and the smaller slats are ideal. SlabDrain - Shallow trench drains. TRENCH DRAIN Channel Drains products or Buy Online Pick Up in Store today in the Plumbing Department. Includes 1 channel drain. Reln Channel Drain Stake Kit. 75 in. USA configurable. Precast Concrete Drainage Channels; Cast-In-Place Trench Drain Forming Systems; Water Treatment & Filtration; Stormwater Modules; Precast Concrete Drainage Channels See full list on abtdrains. html. Zurn Trench Drain offers the durability and flexibility expected in commercial applications for trench drain systems. Everything you need to know, plus how to install a channel drain. 92. Flow Rate. 8" Wide ACO K100 Trench Drain Grates; 5 1/4'' Wide Polycast 600 Series Grates; 5 3/8" Wide Zurn Z886 Grates; 6'' Wide NDS Dura Slope Grates; 8" Wide. Drain Channels FastTrack™ System. Variety of trench Drain Gratings available. Alfa Channel is a 6” pre-sloped polymer concrete trench drain system with a 4” interior width. pipe. Polylok Heavy Duty 4′ Trench / Channel Drains. Documents. BG-FILCOTEN ® pro V channels are also available in a shallow version with a. Trench drain runs can be extendable upwards of 256 feet of continuous slope. Many options are available to meet demands for heavy duty to light. 8 in. A trench drain is a linear drainage application used to catch, collect and convey water from a starting location to and an outlet or catch basin. The range comprises modular and durable drainage channels, manufactured from corrosion-resistant polymer concrete. Channels come sequentially numbered and have arrows to indicate. PolyDrain. V. Smooth HDPE Structural Composit Interior - 0% Water Absorption. Formerly known as Piccolo Channels. NDS Dura Slope Trench Drain Systems are designed to provide a solution for residential, commercial, and industrial drainage needs. 00 PART NO. It also includes an end cap and an endcap with a knock out that fits 3" or 4" pipe. Channel drains, also known as trench drains, are long, narrow drains that collect water and direct it to drain pipe; the water is carried to a discharge point downstream such as a pop-up emitter or to percolate into the ground with a dry well or infiltration trench. The systems design allows maximum. Patented flying buttress design provides load-bearing support from both sides as well as underneath the channel. com. 4" and 19. Lay out channel system parts in the planned sequence alongside the excavated trench according to the installation plan. Quick and easy install, as the joiners snap and screw into the channel lengths. Effective in everything from patios to light vehicular traffic areas. Trench Drain Supply has a fine line of trench drain for commercial and residential purposes. Because of their low-profile design, the Compact Series Modular Trench Drain systems are perfect for low water flow areas in landscape water drainage projects. 5-Inch HDPE Drainage Trench, Black Plastic Garage Floor Drain, 4x39 Trench Drain Grate, with 4 End Caps, for Garden, Driveway-4 Pack: Drain Strainers - Amazon. Key advantages of the Mifab-MEA T1400 Trench Drain: Innovative CLIPFIX Grate Locking Mechanism. 95 GPM per foot. 71. The Polylok Heavy Duty Trench Drain is H-20 wheel load rated when cast in reinforced concrete (as per Polylok Trench Drain H-20 Instruction Diagram). Black Drainage Sealant to all pipe connections and assembly joints to ensure superior seal. Fort Carson GSAB Maintenance Hangar. Designed for residential applications including swimming pools, spas, and patios. Our trench drains provide a durable and reliable solution for any project. ACO Drain ® systems are available in 50mm, 100mm, 200mm and 300mm internal widths, and are available with a. Install your drain pipe in the trench. A linear French drain is simply a "moat", or gutter-in-the-ground, that protects your yard or house from sub-surface or surface water. The drain grate, also known as a drain cover, has an open surface area of 23. Install the grates over the trench drain channels. Our Trench Channel Drains cover a huge range of business sectors for us. (See below for a shopping list, tools, and steps. FREE Returns . Place the pre-cut rebar (minimum 1/2” diameter #4) through rebar connecting clamps. More Details. each. OUR TRENCH CHANNEL DRAIN RANGE. Also included in the PolyDrain precast trench drain system are Special Products for liquid containment applications, utility trenches, and limited-space installations. Light weight makes it easy to transport and install. Remove the grates to get access to the end cap and end outlet. Trench must be big enough to accommodate each of the following: Channel/catch basin width and depth dimensions. Also known as a channel drain, a trench drain, or a linear channel, it is a constructed watercourse through which water flows away from selected areas such as a driveway, patios, gardens, walkways, pool decks, parking lots, and other specific areas. Protect your property from low rainfall or pooling water with this Deep Series trench and channel drain kit. ACO Infrastructure Surface drainage systems for roads, bridges and airports. Secure the trench drain assembly. H x 39. They also come with end caps, side and bottom. Hover Image to Zoom. More Details. The world’s most popular modular trench drain system. The trench drain system shall be installed in accordance with the manufacturer’s installation instructions and recommendations. Another significant difference between low profile trench drain and other trench drains is the channel opening. 1" H x 39. Phone: 610-882-3630. « Previous | Next ». In this transfer if one of the trench drain materials is not capable of handling this load then the material will fail and the trench drain will be destroyed. Channel drains, also called trench drains, are long, narrow drains used for surface drainage of hardscapes that collect and convey water to drain pipes, which carry the water downstream to discharge with a pop-up emitter or to percolate into the ground with a dry well or infiltration trench. wide, 3-3/4 in. ) long. Standard PolyDrain channels are manufactured from PolyDyn ®, an advanced formulation of selected quartz aggregates and inert mineral fillers bonded together in a high-grade polyester resin. Channel Drain has a dual channel top that reduces water pass-over. deep polypropylene channel with bottom outlet, gray polyethylene grate, end cap. 02 $ 65. View. Plastic Channel Drains – can only be used for residential driveways since they are not. Each channel measures 12″ wide and comes in 40″ sections. S. Includes 1 channel drain, 1 grate, 1 end outlet, 1 end cap (meter light traffic). Dimension(s): 4' L x 6"W x 5" - 5. 3 and EN 1253, trench drains are tested to EN 1433 : 2002 Drainage channels for vehicular and pedestrian areas. Storm Water Pit and Catch Basin for Modular Trench and Channel Drain Systems with Aluminum Grate. Trench must be big enough to accommodate each of the following: Channel/catch basin width and depth dimensions. Or call us at 888-825-4716. Aesthetically, the integral edge offers a clean, trim look that outperforms the exposed concrete edge. Choosing the channel. View More Information. Pro Series Channel™ Drains. EASY SNAP & LOCK CONNECTIONS: Our trench drain system is designed with snap and lock connections. 1" H x 39. Using a shovel or small excavator, dig a trench that covers the length of the channel drain and the drain pipe. Our mini drain features a flying buttress design that provides load-bearing support from both sides and underneath. Dura Trench commercial trench drain systems also. Trench drains typically consist of a V-shaped body with built-in edge rails and a mounted detachable grate. They are capable of handling heavy water flow, are quick and simple to install, and are built to last. GMS Trench Grates and Frames. These channels are sloped and flow toward a catch basin, which usually has a strainer to catch any larger solid. 00 in. The Channel and Trench Drain system is engineered to deliver the most flexibility in a heavy duty design. 1-Inch HDPE Drainage Trench, Black Plastic Garage Floor Drain, 3x39 Trench Drain Grate, with 3 End Caps, for Garden, Driveway-3 Pack. Design bottom or end outlets into the channel run in the appropriate location and glue to the drain pipe or fittings. 6. Both POLYCAST® and ABT, Inc. We carry a curated selection of modular. The R 600 radius trench drain system uses a combination of linear channels and flexible radius couplings to achieve curvature‘s around radius terrains and site conditions. Trench Drains are often the collection points for flammable fluids and heavier-than-air vapors. » 2 3/4" NDS Mini Channel Trench Drain Grates. Smith. As part of a complete drainage system, channel drains collect and convey water to drain pipes, which carry the water downstream to discharge with a pop-up emitter or to percolate into the ground with a dry well or. Trench Systems. Specs and Installation. A channel drain is usually trough-shaped with grating on the top which prevents debris. The 600 series can reach run lengths of 835 linear feet by implementing neutrals and custom configuration. Available Depth. Channels are pre built with a 1% slope. Install drainage around areas with curved edges such as patios, fountains, pools and spas with ease using the patented Qwik-Turn Deep Radius Coupling. Durable and Lightweight. Micro Channel Drains are perfect for areas that do not need a large amount of water to be drained. D 39. The NDS Slim Channel system is a 2. Channel materials include: Fiber Reinforced Concrete. Plus, the outlet connector is already built-in. From upfront design consultation, to simplified installation, and performance after your job is done, we’re here to meet all of your trench drain project requirements. Trench or Channel Drain System Cost. Typically, a trench system is assembled from the outlet back. . Long With Grate, En. 3 grate types of plastic, cast iron and nylon can allot this system to reach heavy forklift traffic. KlassikDrain - K100 Galvanized steel edge rail channel system. ensure that any chemicals that are being diverted are compatible with each other as well as the material makeup of the trench drain channel to avoid contamination or combustion. Trench Drain Compact 3-Pack 40-in L x 5-1/4-in W Drain in the Outdoor Drainage Accessories department at Lowe's. As part of a complete drainage system, it directs water to drain pipe for proper release downstream—to discharge with a pop-up emitter, or to percolate into the ground with a dry well or infiltration trench. Trench Drains System Technical Brochure - ZMKTG 220-012. The FILCOTEN channel sections are made from an industry leading high-performance fiber-reinforced concrete which is stronger, lighter, and more durable than the competition. 7 in. Simply clip the end cap onto the end of your channel trench drain length and it's instantly ready for use as a finishing point. com FREE DELIVERY possible on eligible purchases This business started out in the 1990s as trench channel drainage for meat factories and grew to be a specialized product in Pharmaceutical Factories. About this item . sewer and drain fittingsInitially We have a 6 Inch ADS French Drain with Trench Liner and Pipe Filter Connected to a NDS 4 Inch Channel Drain. A trench drain is a floor drain that generally consists of a trough or channel-style body with a slotted grate that sits on top to prevent people and large solids from entering the drainage system. Slide the rebar into the rebar clips. long; length can be cut to size with a saw. Everhard 1m EasyDRAIN Pressed Galvanised Steel Grate And Channel (2) $47. 25 in. Ensure that channels are placed in the proper position and in the proper direction. 69” [500mm]. Stainless Steel Grating. W x 3. 44cm) N-12 pipe. This makes the trench drain installation faster than other systems on the market. K2-5 Sloped channel - 39. 10' Micro Channel - Including 1 Coupling, Gray SKU #. Prevent outdoor flooding and pooling water with the RELN Storm Drain deep profile channel drain. To suit many applications, our range of AS 3996 compliant grates, slotted tops and linear permeable pavers come in a variety of materials, finishes and load classes. Select the product below to find out more. Trench drain and slot drain joint sealant are offered in two types: Flexible and Rigid. Dimensions: L 39. Showing 1 - 12 of 28 results. 4 in. Radiused Channel POA PART NO. DrainLok Grates. The trench should be around 6 inches deep for the channel drain to give you enough space for laying the channel drain. L Plastic Trench and Channel Drain Kit with Galvanized Steel Grate (6-Pack) Compare. TrenchFormer is the original expanded concrete cast-in-place channel drain forming system. Request a free quote today!. Use solid pipe if you want to redirect the water to a pond or rain garden. More Details. The water is carried to a discharge point downstream such as a pop-up. 2 in. The world’s most popular modular trench drain system. NDS bills the Micro Channel drain as, "Excellent performance at the lowest possible cost. Materials include trench drain in lightweight Fiberglass, Polymer. With a channel-shaped structure at its core, this type of drain excels at capturing stormwater across a substantial surface area and rerouting it close to the surface. Trench Drain Systems offers an extensive line of trench drain channels, grates and catch basins. Model# 83432-6. Pour 8 inches of gravel into the bottom of your drainage trench, atop the landscape fabric. Polymer concrete technology originated in Europe and was produced in one-meter channel lengths. “The product was great and your company was great to work with!”. Use the trowel to spread an angled wedge of concrete against the back of the drain. Solutions Solutions. Backfill the trenches to cover the piping and you are done. Each channel measures 12″ wide and comes in 40″ sections. Mini Channel DrainVEVOR Trench Drain System, Channel Drain with Plastic Grate, 5. Install channel end-to-end PVC cementing sections together. Banded Bar (180) Ductile Iron Slotted (24) Ductile Iron With Anchor Frame (117) Fiberglass (24) Heel-Proof & ADA (36)Spee-D Channel Drains are 4-3/4 in. Check that the slope of the pipes is steep enough – ¼-inch down for every foot of run. Channel drains, also known as trench drains, are linear drains that move excess rain or stormwater through underground drainage systems. It is a strong. Pools, Spas, Patios Pools, Patios, Tennis Courts Patios, Pools, Spas, Walkways & Paver Landscapes Pools, Pool Decks, DrivewaysVEVOR Trench Drain System, Channel Drain with Plastic Grate, 5. If a catch basin is being used at the discharge point, connect this channel to the catch basin (arrows always point downstream). This linear drain’s slot is 6 mm wide and doesn’t require any stainless steel grate. ABT designs and manufactures some of the most extensive, reliable, and versatile lines of channel drains, grates, and surface water management solutions in the industry. 00. 5" Pro Series Channel Drain Kit SKU # 864. This pre-cast concrete channel comes in pre-sloped and neutral sections with a variety of grates to meet the needs of any project. The trough may be formed out of concrete by hand, be made out of concrete using a pre-formed mold, or be made of another material like plastic, PVC, or metal. The modular system makes tailoring your drainage system quickly and easily. Shorten to 4 in. . Email: Shop@TrenchDrain. Swiftdrain has positioned themselves as a leading manufacturer of residential and commercial trench drain. How To Install A Trench Drain In Driveway, Storm Drain, Driveway Channel Drain for around $100. 197” [5mm] up to 19. Swiftdrain 100. , the industry leader in modular drainage systems for commercial and industrial use. Slot drains are basically trench drains – with a twist. NDS Spee-D Channel Drain Systems are a lightweight alternative to traditional concrete drains, that offers superior performance. TRENCH DRAIN. QTY. Add to Cart. Excavate and form the driveway trench. The trench drain channels typically come in 8 foot or longer sections for fewer joints. 3" wide Light Traffic Channel Grate and Channel Drain with mechanical interlocking joints and UV. There are four drainage ports on each segment to enable 3" and 4" SCH40 or 4" SDR35 connections. Open end cap Ø32 can be installed in 5 different positions; laterla or head position. Gray. Compare. NDS channel and trench drains are designed for durability, drainage. HIGH-QUALITY STAINLESS-STEEL GRATING: The 3 Inch Trench Drain Stainless Pro Channel features 316 stainless steel grating, making it an ideal choice for a durable and efficient gutter drain system for your home or commercial property. 3Lay the channels alongside the trench n Start the layout at the drain outlet with the deepest (highest numbered) channel section, proceeding to the shallowest (lowest numbered) channel section. Standard engineering methods and formulas are used in this design manual to guide the designer in the selection and layout of the ABT modular trench drain units from inflow to discharge. Variety of Gratings.