---
title: Smith 1340 Roof Drain Specs & Options
description: Find a diagram and engineering specifications of the Smith 1340 8.5-in., low-profile dome, side-outlet roof drain.
---

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# Smith 1340 Roof Drain Specs & Options

*Dimensional data is subject to manufacturing tolerances and change without notice.*

### [*Download Specifications PDF*](https://www.jrsmith.com/uploads/fileLibrary/d1330.pdf)

| **Outlet Size (A)** | **2 in.** | **3 in.** | **4 in.** |
| --- | --- | --- | --- |
| B | 4-1/2 | 4 | 3-1/2 |

 

**Specifications: **The Smith 1340 roof drain is used in flat roof, gutter and valley construction. Its small diameter pan is particularly adaptable to gutters and valleys where limited space is available. A flashing clamp holds flashing and roofing materials without puncturing. Its low profile dome provides sufficient free area for quick rain water drainage, and protects the drain sump and connected piping from debris. Regularly furnished with a Duco cast iron body with combined flashing clamp, gravel stop and polyethylene dome.  

**Recommended Deck Openings**

| **Outlet Size (in.)** | **With Sump** **Receiver (.in)** | **Without Sump** **Receiver (.in)** |
| --- | --- | --- |
| 2 - 4 in. | 9 dia. | 7-3/4 dia. |

 

*[![Find and Buy Smith Roof Drains](https://no-cache.hubspot.com/cta/default/10783/8114ace5-1719-482e-8b86-7f1517b618a7.png)](https://cta-redirect.hubspot.com/cta/redirect/10783/8114ace5-1719-482e-8b86-7f1517b618a7)*

## Outlet Types

- Caulk Outlet
- Threaded Outlet

## Variations

- Extension (specify height) (-E)
- "L" Shaped Underdeck Clamp (-CL)
- No-Hub Adaptor (Specify Fig. 2646Y)
- Secondary Flashing Clamp (-C2)
- 2 in. High Water Dam (-WD)
- Sump Receiver (-R)
- Underdeck Clamp (-C)
- Vandal Proof Dome (-U)

## Optional Materials

- Aluminum Dome (-AD)
- Cast Iron Dome (-CID)
- Galvanized Cast Iron Dome (-CIDG)
- Galvanized Cast Iron Body & Collar (-G)
- Rough Bronze Dome (-RBD)

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