The MAKO Screed Support Systems
Precision Elevation Control Before the Concrete Is Placed
Flatness and Levelness Begin at Setup
Concrete finishing cannot correct poor elevation control — it only compensates for it.
The MAKO Screed Support System replaces improvised methods with mechanical elevation control, keeping screed rails stable, adjustable, and consistently set throughout the placement process.
When grade is established correctly from the start:
• Higher FF/FL floor numbers are achievable
• Finishing time is reduced
• Rework is minimized
• Production efficiency increases
Flatness and levelness are not finishing problems. They are setup decisions.
EXPLORE APPLICATIONS VIEW CASE STUDIES
The MAKO SCREED SUPPORT SYSTEMS
Choose the right MAKO Screed Support System based on the screed rail used on your project. All MAKO supports provide precise elevation control for slab-on-grade, elevated decks, and vapor barrier placements.
PIPE SCREED → FinCap
2×4 SCREED → JAWS Small
STEEL SCREED RAIL → JAWS RailFin
Proven in Aerospace • Transit • Infrastructure • Industrial • Manufacturing • Military • Distribution • Energy
Why Contractors Choose MAKO
• Field-proven on aerospace, transit, and industrial projects
• Consistent elevation control for higher FF/FL floors
• Faster screed setup and fewer adjustments
• Made in the USA from durable polypropylene
MAKO screed chairs provide precise elevation control for concrete placement across a wide range of construction applications. Whether using pipe screeds, wood screed boards, or steel screed rails, MAKO systems allow contractors to quickly set supports and maintain consistent grade throughout the pour. MAKO Screed Support Systems are used on concrete projects worldwide, including slab-on-grade construction, elevated slabs, metal pan decks, wood deck pours, vapor barrier slabs, and concrete overlays, as well as specialty placements such as drains, rail-critical slabs, sloped floors, and super-thick industrial pours. The system has supported projects ranging from high FF/FL manufacturing and super-flat floors requiring strict FF/FL compliance to gymnasiums, tennis courts, swimming pools, waterways, tunnels, bridge decks, embankments, and other infrastructure projects. From performance concrete placements to large-scale industrial, commercial, and transportation construction, MAKO systems provide contractors with reliable, repeatable elevation control across virtually any concrete placement condition.
| System | Screed Type |
|---|---|
| FinCap | 1-1/2" pipe screed |
| JAWS Small | 2×4 wood screed |
| JAWS RailFin |
¼" × 2" steel screed rail |
THREADED ROD LENGTH DEPENDS ON SLAB THICKNESS
Cut the threaded rod or coil rod based on the slab thickness using the recommended lengths from the slab depth chart.
| SLAB DEPTH | RECOMMENDED SLAB DEPTH |
| 4.5" - 6.25" | 2.25" |
| 5.5" - 7.25" | 3.25" |
| 6.5" - 8.25" | 4.25" |
| 7.5" - 9.25" | 5.25" |
| 8.5" - 10.25" | 6.25" |
| 9.5" - 11.25" | 7.25" |
| 10.5" - 12.25" | 8.25" |
For slabs greater than 6" we recommend using a steel threaded rod instead of nylon.

1-3/4" VERTICAL ADJUSTMENT
Using the nut and washers, the FinStand or CoilStand allows up to 1-3/4" of vertical adjustment, enabling precise height control and easy grade adjustments during setup.
MINIMUM THREAD ENGAGEMENT REQUIRED FOR STABILITY IN SETUP

Proper setup is essential when using the FinCap or JAWS screed chairs on elevated decks or vapor barrier slabs. The threaded rod must be installed a minimum of 1" into the barrel of the screed chair and 1/2" into the FinStand to maintain stability. If these engagement depths are not met, the assembly may become unstable and move during concrete placement.
Common Applications
• Slab-on-grade construction
• Elevated metal or wood decks
• Vapor barrier overlays
• Super flat industrial floors
• Bridge decks and infrastructure













FinStand Support
CoilStand Support
JAWS Large