Made in the USA • Patented • Jobsite-Proven • Non-conductive • Non-corrosive
What Is the Adjustable FinCap® Concrete Screed Support?
The Adjustable FinCap® Concrete Screed Support is a bundled MAKO system designed for fast, accurate grade setting using a 1-1/2″ (40 mm) galvanized screed pipe (Schedule 40 or higher).
This bundle combines FinCap® Screed Chairs with FinStand® Adjustable Supports to create a stay-in-place, height-adjustable screed support system for elevated decks, sloped slabs, bridge work, and super flat floor projects.
Base Plate 4.5 is NOT included. This bundle is intended for direct attachment to wood or metal decks using the FinStand fastening holes.
What’s Included
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100 FinCap® Screed Chairs (Product #08242FC100)
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100 FinStand® Adjustable Supports (Product #08244STND)
Threaded rods (all-thread), hex nuts, and flat washers are sold separately.
Designed For
- Elevated decks (wood or metal)
- Sloped slabs and grade transitions
- Bridge decks, waterways, and power plant concrete projects
- Super flat floors requiring FF/FL compliance
- Contractors who want adjustable grade control and repeatable setup
Ideal for use on super flat floors to stay compliant with ACI 302.1R-04, ACI 117, and ASTM E1155. Iowa DOT approved.
System Compatibility
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Screed Pipe Supported: Nominal 1-1/2″ (40 mm) galvanized pipe (1.5″ ID / 1.9″ OD), Schedule 40 or higher
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Threaded Rod: FinStand uses 1/2″-13 all-thread (cut to length based on slab depth)
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Vertical Adjustment: Up to 1-3/4″ (45 mm) using nut and washer on the all-thread
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Spacing Guideline: Place supports every 3–4 ft (1 m) depending on screed length and sub-grade conditions
Key Specifications
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Minimum Assembly Height: Minimum height using a 1-1/2″ ID pipe from the bottom of the FinStand to finished elevation is 4-5/8″ (117 mm)
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Load Capacity: Holds up to 1,000 lbs (system-dependent and per product ratings)
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FinCap Feature: Internal “fins” hug the mounting structure so it won’t bounce off during placement
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FinStand Fastening: Secure to wood deck with nails or to metal deck with #8 or #10 tek screws
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Material: Impact-resistant medical grade polypropylene (non-metallic)
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Coverage: 100 FinCaps + 100 FinStands per box (approx. 3,000 sq ft / 278 m²)
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Rod Guidance: Use steel threaded rod for slabs over 8″ (200 mm)
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Threaded Rod: Sold separately — cut to length determines height (see slab depth chart)
How It Works
- Secure FinStand to the deck (wood: nails / metal: #8 or #10 tek screws).
- Insert 1/2″-13 all-thread (sold separately), cut to the required slab depth.
- Adjust height up to 1-3/4″ (45 mm) using a nut and washer.
- Install FinCap® on the threaded rod/mounting structure.
- Place 1-1/2″ pipe into FinCap® chairs.
- Space supports every 3–4 feet and begin pouring and screeding.
For slab depth and all-thread length selection, refer to the FinStand slab depth chart in the FinStand Product Data Sheet. For slabs over 8″ (200 mm), steel threaded rod is recommended.
Why Contractors Choose This Bundle
- Everything needed for adjustable pipe screed setup (without Base Plate)
- Fast setup on wood or metal decks
- Adjustable grade control for deck variation and slope changes
- Non-conductive and non-corrosive for harsh environments
- Stay-in-place system engineered for super flat floor compliance
Frequently Asked Questions
Is Base Plate 4.5 included?
No. This bundle does not include Base Plate 4.5. It is intended for direct attachment to wood or metal decks using FinStand fastening.
What pipe does this system support?
Designed for nominal 1-1/2″ (40 mm) galvanized pipe (1.5″ ID / 1.9″ OD), Schedule 40 or higher.
Do threaded rods come with this bundle?
No. 1/2″-13 threaded rods (all-thread), hex nuts, and flat washers are sold separately. Rod length is cut to slab depth.
How far apart should I place supports?
A typical guideline is every 3–4 feet depending on screed length and sub-grade conditions.
When should I use steel threaded rod?
For slabs thicker than 8″ (200 mm), steel threaded rod is recommended.
Recommended Add-Ons
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Nylon or Steel All-Thread (1/2″-13): Cut to length per slab depth
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Hex Nuts + Flat Washers: Required for fine-tune height adjustment
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MAKO® Driver: For faster, more consistent setup when using FinCaps and JAWS chairs
Downloads
FinCap Product Data Sheet
FinStand® Product Data Sheet
