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HERMEQ GermanyCombiform Screed Rail Top Extender 30mm
Product Highlights
- Extended coverage - Adds 1-3/16 in. height for deeper concrete cover applications.
- Integrated contraction joint - Replaces traditional saw cuts in slab setups.
- Removable or permanent - Can be left in place or removed post-cure.
SKU KF3510
This 1-3/16 in. plastic screed rail extender is mounted on top of an existing rail to increase concrete cover and serve as a built-in saw cut. It helps form slab joints while streamlining installation. Suitable for heavy-duty floors and harsh environments, this screed rail top extender can be removed or left in place.
Durable, flexible, and easy to apply on site.
The Combiform screed rail extender enhances concrete floor setups by increasing slab depth while forming clean and accurate contraction joints. Designed to sit on top of an existing screed rail, this 1-3/16 in. component eliminates the need for post-cure saw cutting and simplifies joint planning across a range of slab layouts.
Made from PP plastic, this screed rail top extender is suitable for both indoor and outdoor environments. It performs reliably even in chemically harsh or abrasive industrial settings, supporting greater slab thickness where required.
- Flexible application - Can be left in after curing or removed for alternate joint filling.
- Efficient workflow - Speeds up joint formation and reduces the need for post-cure tooling.
- Heavy-duty compatible - Designed for use in industrial and commercial slabs.
- Joint accuracy - Ensures contraction points form exactly where needed.
- Durable construction - Made from compliant polypropylene plastic.
Whether used in large warehouse slabs or exterior yards, the extender ensures a clean finish without added tooling time. It improves site efficiency by removing the need for saw cuts and supports consistent performance across the full surface area.
Mounting is straightforward—simply clip or place the screed rail extender atop the base rail before concrete pouring. Once cured, it can be removed for sealant application or left in as a permanent fixture. The 1-3/16 in. profile offers excellent control for deep-pour sections or topcoat overlays.
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- Mounts directly on screed rails to create predefined contraction joints.
- Supports thicker topcoat concrete applications across slab installations.
- Can be removed post-pour or left in permanently with sealant.
- Ideal for environments requiring robust joint systems in floors.
- Manufactured from PP plastic to compliance standards.
| Height (in.) | Length (in.) | Width (in.) | Weight/pc (lb) |
| 1-3/16 | 86-5/8 | 5/16 | 1.1 |
Material: PP plastic
Height: 1-3/16 in.
Length: 86-5/8 in.
Width: 5/16 in.
Weight: 1.1 lb
Use: Joint former and topcoat depth extender
What is a screed rail extender used for?
It increases concrete cover and replaces saw cutting by forming built-in contraction joints.
Is the combiform extender removable?
Yes, it can be removed post-cure or left in place depending on sealant requirements.
What type of floors can it be used with?
It's suitable for heavy-duty, industrial, and chemical-resistant environments.
How is it installed?
The extender mounts directly on top of a standard screed rail before pouring.
