Slab-on-Grade Screed Chairs for Precision Elevation Control

Repeatable setup. Verified field performance.

Made in the USA

Fast setup. Accurate and repeatable process. Compatible with hand or laser setups. Designed for contractors who need speed without sacrificing flatness. MAKO Screed Chairs are engineered stay-in-place supports designed for slab-on-grade construction requiring precise elevation control and repeatable screed rail alignment.

SYSTEM	IMAGE	SCREED TYPE	KEY COMPONENTS
FinCap Screed Chair + Driver	SHOP NOW	Screed Pipe: 1-1/2" ID Optional: 1-1/4" or 2" pipe	FinCap + Driver + mounting structure Installation Video
JAWS Small + Driver	SHOP NOW	2x4 Wood Lumber or Rails up to 1.5" Structural Elements	JAWS Small + Driver + mounting structure
JAWS Large + Driver	SHOP NOW	1.5" – 2.0" Rails Structural Elements	JAWS Large + Driver + mounting structure
JAWS RailFin	SHOP NOW	1/4" flat rolled steel rail	RailFin + mounting structure Not compatible with MAKO Driver

MAKO DRIVER
SHOP NOW	The Heart of Precision Elevation Control HOW TO USE: Draw string line to finished elevation. Insert mounting structure into screed chair. Drive until marker aligns with string line. Move to next chair. Repeatable. Accurate. Fast. Eliminates elevation guesswork. Ensures consistent screed support height every time. Installation Video

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: 3/8" to 5/8" - 1/2" is ideal, rebar #3, #4 & #5, 1/2" Coil Rod, 1/2" Threaded Rod, PVC, GRFP, Conduit, Stakes, Dowels and more.

Load Capacity: Up to 1,000 lb

Material: Impact-resistant medical grade polypropylene

Minimum Slab Thickness: Varies by chair and mounting structure

Country of Origin: Made in the USA

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, Gymnasiums, 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.

Why Do Contractors Choose MAKO Screed Chairs?

Stay-in-Place Design. No removal. No patching. No callbacks.

Patented Internal Fin Technology. Internal fins grip mounting structure to prevent bounce during placement.

Fast, Repeatable Setup with MAKO Driver. Eliminates guesswork.

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

Designed For:

• Slab-on-grade construction
• Sloped Slabs
• Embankments
• Bridge and infrastructure projects
• Super flat floors requiring FF/FL compliance