Adjustable FinCap® Screed Support System for Elevated Wood and Metal Decks – 1-1/2″ Pipe (100 FinCaps + 100 FinStands)

Made in the USA • Patented • Jobsite-Proven • Non-conductive • Non-corrosive

What Is the Adjustable FinCap® Concrete Screed Support System (without Base Plate) for Elevated Wood and Metal Decks?

The Adjustable FinCap® Concrete Screed Support System 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. The Threaded Rod (all-thread), hex nut and flat washer 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

Why Contractors Choose It

• Everything needed for adjustable pipe screed setup (without Base Plate)
• Fast setup on wood or metal decks using the MAKO Driver
• 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

How It Works

1. Set your grade. Run a string line or laser at finished slab elevation.
2. Establish your screed line. Snap a chalk line (wood) or follow deck flute (metal). Space supports every 3–4 feet.
3. Cut your threaded rod. Cut based on slab depth. (Use steel all-thread for slabs over 6".)
4. Secure the FinStand. Fasten to deck - use screws for metal deck or nails on wood deck). Be sure the FinStand sits flat and solid.
5. Install threaded rod. Thread into FinStand (minimum 1/2" embedment).
6. Install the FinCap. Place on rod (minimum 1" embedment).
7. Adjust to height. Use the MAKO Driver and adjust rod until marker hits string line. Optional: use nut/washer for fine tuning.
8. Repeat spacing. Install screed supports every 3–4 feet along the screed run.
9. Set your screed rail. Place 1.5"ID/1.9”OD screed pipe on the FinCaps. The top of the rail is automatically at finished grade. (A 2” or 1-1/4” screed pipe works as well but the stringline needs to be adjusted.)
10. Place and screed. Strike off concrete with hand or mechanical screed, slide screed rail along screed chairs, fill the void with mud, and bull float over.
11. Leave in place. FinCaps stay embedded in the concrete—no removal, no disruption to the slab.

Key Specifications

• Screed Pipe Supported: Nominal 1-1/2″ (40 mm) galvanized pipe (1.5″ ID / 1.9″ OD), Schedule 40 or higher
• Threaded Rod: 1/2″-13 all-thread (cut to slab depth)
• Vertical Adjustment: Up to 1-3/4″ (45 mm) using nut and washer
• Spacing Guideline: 3–4 ft depending on conditions
• Mounting: Direct attachment to wood or metal deck
• Material: Impact-resistant medical grade polypropylene (non-metallic)
• Coverage: Approx. 3,000 sq ft per box

Full Specifications

• Includes: 100 FinCap® Screed Chairs (Product #08242FC100)
• Includes: 100 FinStand® Adjustable Supports (Product #08244STND)
• Screed Pipe Supported: Nominal 1-1/2″ (40 mm) galvanized pipe (1.5″ ID / 1.9″ OD), Schedule 40 or higher
• Threaded Rod: FinStand uses 1/2″-13 all-thread (cut to length based on slab depth)
• Vertical Adjustment: Up to 1-3/4″ (45 mm) using nut and washer on the all-thread
• Spacing Guideline: Place supports every 3–4 ft (1 m) depending on screed length and sub-grade conditions
• 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)
• Load Capacity: Holds up to 1,000 lbs (system-dependent and per product ratings)
• FinCap Feature: Internal “fins” hug the mounting structure so it won’t bounce off during placement
• FinStand Fastening: Secure to wood deck with nails or to metal deck with #8 or #10 tek screws
• Material: Impact-resistant medical grade polypropylene (non-metallic)
• Coverage: 100 FinCaps + 100 FinStands per box (approx. 3,000 sq ft / 278 m²)
• Rod Guidance: Use steel threaded rod for slabs over 8″ (200 mm)
• Threaded Rod: Sold separately — cut to length determines height (see slab depth chart)

Compliance & Approvals

• Ideal for use on super flat floors to stay compliant with ACI 302.1R-04, ACI 117, and ASTM E1155
• Iowa DOT approved

Additional Notes

• Base Plate 4.5 is NOT included in this bundle
• Threaded rods (all-thread), hex nuts, and flat washers are sold separately
• 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

Packaging / Coverage

• 100 FinCaps + 100 FinStands per box
• Approximately 3,000 sq ft (278 m²) coverage

Installation Notes

• Ensure minimum 1/2" embedment into FinStand and 1" into FinCap
• Verify elevation with string line or laser prior to placement

Downloads

FinCap Product Data Sheet

FinStand® Product Data Sheet