Rail Screed Structural Systems
Precision Steel Rail Screed Support for Structural Concrete, Industrial Floors & Elevated Decks
MADE in USA
Precision Steel Rail Screed Support for Structural Concrete, Industrial Floors & Elevated Decks
Best For: Slab-on-Grade, Elevated slabs, Metal deck pours, Wood deck pours, Concrete overlays, Vapor barrier slabs, Drains, Rail Critical, High FF/FL Floors, Tennis Courts, Gymnasims, Swimming Pools, Waterways, Performance concrete, Pan Decks, Sloped slabs, Tunnels, Super Thick Floors, Manufacturing plant slabs, Embankments, Bridge decks and infrastructure projects, Super flat floors requiring FF/FL compliance and more.
| SYSTEM | SCREED TYPE | KEY COMPONENTS | |
|---|---|---|---|
SHOP NOW |
JAWS RailFin |
1/4" flat rolled steel rail |
RailFin + mounting structure Not compatible with MAKO Driver |
SHOP NOW |
JAWS RailFin + FinStand + Driver |
1/4" Flat Rolled Steel Rail Up to 1.75" of vertical adjustment |
FinStand + threaded rod + RailFin (nut & washer optional) Not compatible with MAKO Driver |
SHOP NOW |
JAWS RailFin + FinStand + Base Plate + Driver |
1/4" Flat Rolled Steel Rail Up to 1.75" of vertical adjustment |
Base Plate + FinStand + threaded rod + RailFin (nut & washer optional) Not compatible with MAKO Driver |
| SYSTEM | SCREED TYPE | KEY COMPONENTS | |
|---|---|---|---|
SHOP NOW |
JAWS RailFin + CoilStand + Driver |
1/4" Flat Rolled Steel Rail Up to 1.75" of vertical adjustment |
FinStand + 1/2" x 6 thread - right hand coil rod + RailFin (nut & washer optional) Not compatible with MAKO Driver |
SHOP NOW |
JAWS RailFin + CoilStand + Base Plate + Driver |
1/4" Flat Rolled Steel Rail Up to 1.75" of vertical adjustment |
Base Plate + FinStand + 1/2" x 6 thread - right hand coil rod + RailFin (nut & washer optional) Not compatible with MAKO Driver |
Its patented internal “fins” in each MAKO screed chair hug the mounting structure so the chair will not bounce off rebar or rod during concrete placement.

SPECIFICATIONS:
Packaging: 100 pieces per bag - Approximately 3,000 sq ft coverage per bag
Spacing: Typically every 3-4 feet (1 meter) depending on screed weight, pour span and subgrade. Always test conditions prior to placement.
Mounting Structure Compatibility: 1/2". 13 thread for the FinStand, 1/2" x 6 thread for the CoilStand
Material: Impact-resistant medical grade polypropylene
Minimum Slab Thickness: Varies by chair and mounting structure
Country of Origin: Made in USA
Why Do Contractors Choose MAKO Screed Chairs?
✔ Fully Adjustable System
Fine-tune slab elevation before placement.
✔ Stay-in-Place Design
No removal. No patching. No callbacks.
✔ Patented Internal Fin Technology
Internal fins grip mounting structure to prevent bounce during placement.
✔ Field Proven Performance
Used on infrastructure, industrial, super flat, and DOT projects.
Compliance, Approvals & Patents
- Standards: ACI 302.1R-04, ACI 117, ASTM E1155
- Approvals: Iowa DOT approved (other states pending)
- Patents: 8,096,182 | 8,544,182 | Patent Pending

SHOP NOW

SHOP NOW
SHOP NOW