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Trumshi CX Series Adjustable Deck Support – Pedestal for Joist

A Professional, Height-Adjustable Pedestal System Designed for Joist-Based Decking – Brought to You Through HUIYA’s Reliable Supply Chain.

Adjustable Deck Pedestal for Joist – Trumshi CX00K Series | Height-Adjustable Floor Support System

HUIYA is proud to introduce the Trumshi CX Series Adjustable Deck Support, a high-performance pedestal for joist applications that delivers precision leveling, superior load distribution, and lasting durability for both outdoor and indoor raised-floor installations. As part of HUIYA’s commitment to integrating affordable and reliable supply chain resources alongside our core raised access floor products, the Trumshi CX Series extends our product ecosystem to cover outdoor and elevated decking scenarios, providing our customers with a true one-stop solution for every access-floor and raised-surface need.

Designed and manufactured by our strategic partner Trumshi, the CX00 Series covers a height range from 20 mm to 117 mm across twelve model variants, giving architects, contractors, and property developers the flexibility to create perfectly level deck surfaces on virtually any substrate, from sloped rooftops and waterproofed terraces to interior renovation floors. When you purchase from HUIYA, you gain access to factory-direct pricing, expert technical support, and seamless global logistics, all through one trusted supply chain partner.

What Is an Adjustable Deck Support?

An Adjustable Deck Support, also commonly referred to as a deck pedestal, raised decking support, or outdoor floor support, is a height-adjustable structural support component used to elevate decking surfaces above a structural substrate. By rotating the threaded mid-column, installers can precisely level any decking surface over sloped, uneven, or irregular concrete with no grouting, no drilling, and no wet trades required.

Modern adjustable deck pedestals are manufactured from high-density polypropylene (HDPE) or reinforced resin composites, delivering the following benefits:

Advantages of Adjustable Deck Supports

✅Precision Height Adjustment

Screw-thread mechanisms allow millimeter-accurate leveling across uneven surfaces.

✅Moisture & Mold Prevention

The elevated cavity between the substrate and the decking promotes air circulation and drainage, effectively preventing moisture accumulation and mold growth.

✅Waterproof Membrane Protection

Pedestals sit on the membrane without penetrating it, preserving the building’s waterproofing integrity.

✅Easy Access to Utilities

The void beneath the raised surface can accommodate drainage pipes, electrical conduits, and irrigation lines, all remaining fully accessible after installation.

✅ High Compressive Strength & Fast Installation

Supports stone, porcelain, timber, WPC, and aluminium decking. No wet trades, no curing time. Pedestal-based systems dramatically shorten project schedules.

✅Weather Resistance

Engineered from high-strength PP (polypropylene) materials, quality adjustable deck supports resist UV degradation, freeze–thaw cycling, and chemical exposure.

When paired with joists (timber or aluminum), the adjustable deck support becomes the foundation of a joist-based raised decking system, one of the most popular and versatile methods for constructing elevated outdoor floors worldwide.

Trumshi CX Series Adjustable Deck Support – Pedestal for Joist

Product Name: Trumshi CX Series Adjustable Deck Support – Pedestal for Joist
Model Series: CX00
Manufacturer: Trumshi (创象®) – Zhejiang Chuangxiang New Materials Co., Ltd.
Supplied By: HUIYA (Strategic Supply Partner)

The Trumshi CX Series Adjustable Deck Support is specifically configured as a pedestal for joists. This means each pedestal head is equipped with a joist cradle designed to securely receive and lock joists in place, forming a stable and level structural grid upon which decking boards are fastened.

How the Pedestal Joist-Based System Works:

Decking boards (timber, composite, or other materials) are then fastened to the joists to create the finished surface.
Pedestals are positioned on the substrate in a grid layout according to the project’s spacing plan.
Heights are adjusted by rotating the threaded middle column to achieve a level plane.
Joists, either timber (wood) or aluminum, are placed into the joist cradles at the top of each pedestal.

This method provides excellent structural rigidity, even load distribution, and a clean separation between the finished deck surface and the waterproofed substrate below.

Best suited for:

Solid timber decking (anti-corrosion pine, hardwood, treated softwood)
Wood-Plastic Composite (WPC) board decking
Aluminium composite decking profiles
Large-format outdoor tile systems with aluminium or steel sub-frame

Components of the Trumshi CX Series Adjustable Deck Support (Pedestal for Joist)

Each Trumshi CX Series Pedestal for Joist is composed of five precision-engineered modular components that can be assembled and configured on site to meet a wide range of height and layout requirements:

1. Base Plate

190 mm diameter. The wide-diameter circular base is the primary load-bearing element of the pedestal. It distributes vertical loads evenly across the substrate or waterproofing membrane, eliminating point-load damage.

2. Threaded Middle Column

90 mm diameter. The middle column connects the base to the pedestal head and provides continuous, tool-free height adjustment via a precision threaded mechanism. Rotate clockwise to lower; counter-clockwise to raise.

3. Joist Clip Slot (Joist Cradle)

The joist clip slot is the defining feature of this Pedestal for Joist variant. Integrated into the pedestal head, it firmly locks joists in lateral position during installation and throughout the service life of the deck, preventing movement, creaking, and misalignment.

Compatible joist widths:

Joist Size	Fix Method
40 mm	Single-side clip fix
50 mm	Single-side fix or full engagement
60 mm	Full-width engagement
Clip Slot Dimensions	50 mm × 60 mm

Slot size: 50 mm × 60 mm. Snaps onto the top of the head. Designed to securely hold joists of 30 mm, 40 mm, 50 mm, or 60 mm width. Joists smaller than 50 mm are single-side fixed; 50 mm and 60 mm joists fully seat into the cradle.

4. Headpiece (Functional Spacer)

The upper platform that screws onto the middle column. Features a threaded connection below and a snap-fit socket on top for the joist cradle. Includes functional spacer tabs that can be snapped off to suit different board layouts.
The functional spacer controls the gap spacing between decking panels or boards at each pedestal point. Spacers are pre-scored and can be snapped to suit the number of panels meeting at each support:

Panels per Point	Spacer Configuration
1 panel	Break into 4 segments
2 panels	Break into 2 segments
3 panels	Break into 1 segment
4 panels	No break required

5. Locking Rings x 2

Once the pedestal is set to the correct height, the locking ring is rotated to the locked position, preventing any further height change and ensuring the following:

✅ Stable, consistent pedestal height across the entire deck
✅ Even load distribution across all support points
✅ Long-term structural integrity of the elevated decking system

Two friction rings – one on the middle column and one on the head. After height adjustment, both rings are rotated tight against their respective joints to lock the pedestal at the set height, preventing any unwanted rotation or settlement under load.

Trumshi CX00 Series Adjustable Deck Support Specifications

Parameter	CX00 Series
Base Diameter	190 mm
Head Diameter	140 mm
Middle Column Diameter	90 mm
Joist Cradle Slot Size	50 mm × 60 mm, smaller than 50mm can be fixed on one side
Compatible Joist Widths (gap between stone/tile flooring)	30 mm, 40 mm, 50 mm, 60 mm
Height Adjustment Range	37mm–1600mm, Continuously adjustable via threaded column (exact range depends on column configuration)
Material	High-strength PP (Polypropylene)
UV Resistance	Yes
Freeze–Thaw Resistance	Yes
Impact and Load Resistance	Over 2.5 tons
Moisture / Mold Resistance	Yes
Applicable Temperature	-30°C to 120°C
Slope Adjustment Range	0–5%
Number of Pedestal Supports Required per Square Meter	300×300mm: 12 sets/m² 400×400mm: 7 sets/m² 500×500mm: 5 sets/m² 600×600mm: 3 sets/m² 800×800mm: 2 sets/m²
Installation Type	Dry installation – no adhesives or wet trades required

Modes of Trumshi CX00 Series Adjustable Deck Pedestals for Joist

How to choose the right model: Select the model whose height range covers your required finished-floor elevation above the substrate. For projects requiring heights beyond 117 mm, consult HUIYA about the M Series and N Series with larger column diameters and extended height ranges.

Trumshi CX Series Adjustable Deck Support Installation: Joist-Based Paving

How to Assemble the CX00K Pedestal for Joist – 5 Simple Steps

The Trumshi CX00 Series Pedestal for Joist is assembled on site from five modular components in a straightforward 5-step process. No tools are required – all connections use threaded rotation or snap-fit mechanisms.

Step	Action	Detail
Step 1	Screw the middle column onto the base	Take the middle column (which comes with a locking ring already around it) and rotate it clockwise into the threaded socket on the base plate.
Step 2	Slide the locking ring down to the base	Rotate the locking ring on the middle column downward until it sits flush against the top of the base plate. This ring will later be tightened to lock the height.
Step 3	Screw the head onto the middle column	Take the head piece (which also comes with its own locking ring) and rotate it onto the top thread of the middle column. Adjust rotation to set the desired height.
Step 4	Slide the head’s locking ring down to the base end	Rotate the locking ring on the head downward until it meets the middle column, securing the head at the set height.
Step 5	Snap the joist cradle onto the head	Press the joist cradle onto the top of the head until it clicks into place. The cradle is now ready to receive timber or aluminum joists.

How To Install the Raised Floor Pedestal for Joist?

The joist-based paving method is the primary installation approach for the CX00 series pedestals. Here is how it works:

Plan the Layout – Determine pedestal spacing based on joist span, decking material, and load requirements. Typical spacing: 300–500 mm between pedestals along each joist line.
Position Pedestals – Place CX00K pedestals on the clean substrate (concrete slab, waterproof membrane, etc.) in the planned grid pattern.
Adjust Heights – Rotate the threaded middle column on each pedestal to achieve a consistent, level plane across all pedestal heads. Use a laser level or spirit level for precision. Secure the height with the locking ring.
Set Joists into Cradles – Lay timber joists or aluminum joists into the joist cradles. The cradle’s slot design holds the joist firmly:
- 40 mm joists → single-side fixed
- 50 mm joists → single-side or full seating
- 60 mm joists → full-width seating
Install Decking Boards – Fasten timber, composite, or other decking boards transversely across the joists using appropriate screws or clips.
Finish – The result is a stable, level, elevated deck surface with a ventilated cavity beneath for drainage and utility access.

How Height Adjustment Works

The CX00 achieves precise height adjustment through a dual-thread, dual-lock mechanism:

Coarse adjustment – Rotate the head on the middle column to raise or lower the overall pedestal height.
Fine-tuning – Small rotational increments allow millimeter-level precision.
Locking – Once the correct height is reached:
- – Tighten the lower locking ring (on the middle column) down against the base.
- – Tighten the upper locking ring (on the head) down against the column.
- – The dual-lock system ensures the pedestal cannot rotate or shift under load, guaranteeing long-term height stability.

Pro tip: Use a laser level or long spirit level across multiple pedestal heads to verify consistent height before locking all rings and installing joists.

Trumshi CX Series Adjustable Deck Support Applications

Where Is the Trumshi CX Series Adjustable Deck Support Used?

The Trumshi CX Series Pedestal for Joist is engineered for a broad spectrum of indoor and outdoor elevated-floor applications. Its modular design and wide height-adjustment range make it suitable for:

Scenario	Description
Rooftop Terraces & Sky Gardens	Level deck surfaces over sloped waterproof membranes on commercial and residential rooftops.
Outdoor Timber & Composite Decks	Elevated decking above grade for patios, pool surrounds, courtyards, and garden platforms.
Balcony & Terrace Renovations	Quickly raise and level floor surfaces on balconies without adding significant structural load.
Commercial Plazas & Hospitality	Large-area elevated floor installations for hotels, resorts, restaurants, and public spaces.
Indoor/Outdoor Raised Floors	Joist-supported raised floors for interior and outerior spaces requiring cable management or underfloor ventilation.
Landscape Boardwalks	Elevated timber walkways in parks, wetlands, and garden landscapes.

1. Large-Scale Commercial Rooftop – Timber Joist System
Hundreds of CX Series pedestals supporting a timber joist grid across a large commercial building rooftop. The system creates an elevated, ventilated deck surface while fully protecting the waterproof membrane below.

2. Residential Rooftop Terrace – Timber Joist System
Adjustable pedestals with timber joists installed on a residential rooftop, demonstrating the system’s suitability for mid-rise and high-rise terrace applications.

3. Balcony Renovation – Aluminum Joist System
Aluminum joists seated in pedestal joist cradles on a residential balcony, providing a corrosion-resistant, low-maintenance substructure for composite or stone decking.

4. Commercial Interior – Aluminum Joist System
Indoor application with aluminum joists on pedestals, forming a raised floor system for a commercial interior space. The elevated void allows routing of cables and services beneath the floor.

5. Elevated Deck with Composite / Timber Boards – Outdoor
Composite decking boards being laid over a joist-and-pedestal grid on an outdoor terrace, showing the near-finished result of the system.

6. Indoor/Outdoor Raised Floor – Plywood over Joist Grid
Workers installing plywood panels over a joist grid supported by CX Series pedestals in an interior renovation project, demonstrating the system’s adaptability for indoor use.

7. Large-Area Industrial / Commercial Deck – Metal Joist System
Metal joists secured to pedestals with cement base anchoring on a large commercial rooftop, illustrating the system’s capacity for heavy-duty, large-span applications.

HUIYA & Trumshi – Strategic Supply Chain Partnership

Trumshi (创象) is the registered brand of Zhejiang Chuangxiang New Materials Co., Ltd. (浙江创象新型材料有限公司), a specialized manufacturer headquartered in Hangzhou, China, with deep expertise in the research, development, and production of adjustable deck supports, universal pedestals, stone supports, joist brackets, and related landscape construction materials.

Trumshi upholds the corporate philosophy of “Century Quality · Innovative Support“, guided by three core values:

Innovation, Service, Win–Win – Driving development through R&D and winning customer trust through responsive service.

Quality Builds Reputation, Service Shapes the Future – A commitment to premium product quality and professional service that builds lasting brand credibility.

Enduring Quality – Designing support products with long-lasting structural life, meeting the demands of both residential and heavy-commercial projects.

The company operates an independent R&D team, advanced manufacturing facilities, and a comprehensive internet-enabled nationwide sales and service network. Trumshi’s products incorporate four pillars of innovation: new craftsmanship, new materials, new equipment, and new technology, ensuring that every pedestal delivers low material cost, convenient and rapid installation, anti-aging performance, extended service life, outstanding weather resistance, and high compressive strength.

HUIYA and Trumshi have established a strategic cooperation partnership to bring Trumshi’s professional outdoor pedestal systems to HUIYA’s global customer base. This collaboration means that when you source raised access floor products from HUIYA, you can simultaneously procure high-quality outdoor adjustable deck supports through the same reliable supply chain, simplifying procurement, ensuring product compatibility, and reducing logistics costs.

Why Order Adjust Deck Support Through HUIYA?

When you order the Trumshi CX Series Adjustable Deck Support through HUIYA, you gain:

Benefit Details
✅ One-Stop Supply Combine HUIYA indoor raised floor + Trumshi outdoor deck support in one order
✅ Verified Quality All products QC-inspected before shipment
✅ Technical Support Engineering team provides layout planning, load calculation, and installation guidance
✅ Competitive Pricing Direct factory supply chain — no middleman markups
✅ Global Logistics Experienced in export documentation, customs, and container loading
✅ After-Sales Service Dedicated support from inquiry through post-installation follow-up

Benefit	Details
✅ One-Stop Supply	Combine HUIYA indoor raised floor + Trumshi outdoor deck support in one order
✅ Verified Quality	All products QC-inspected before shipment
✅ Technical Support	Engineering team provides layout planning, load calculation, and installation guidance
✅ Competitive Pricing	Direct factory supply chain — no middleman markups
✅ Global Logistics	Experienced in export documentation, customs, and container loading
✅ After-Sales Service	Dedicated support from inquiry through post-installation follow-up

FAQs About Adjustable Deck Support Pedestal for Joist

What is the difference between a “pedestal for joist” and a “pedestal for paver”?
A pedestal for joist features a joist cradle at the top that holds linear joist members (timber or aluminum), which in turn support decking boards. A pedestal for paver has a flat head with spacer tabs designed to directly support individual stone or concrete pavers at their corners. HUIYA offers both configurations – this page covers the joist pedestal; visit our Pedestal for Paver page for the paver-support version.

Can the Trumshi CX Series be used with both wood and aluminum joists?
Yes. The joist cradle is designed to accommodate joist widths of 30 mm to 60 mm, covering standard timber battens as well as aluminum joist profiles.

What height range can the CX Series adjustable deck support achieve?
The height is adjusted by rotating the threaded middle column, and additional extension columns can be added to increase the range. Please contact HUIYA for the specific minimum and maximum heights available for each configuration.

Do the pedestals damage waterproof membranes?
No. The broad base plate distributes weight without puncturing or bonding to the membrane. The system is fully dry-installed with no mechanical fastening to the substrate.

Are these pedestals suitable for cold climates?
Yes. The high-strength PP material is engineered to withstand freeze–thaw cycling and is not affected by cold or humid environments.

How many pedestals do I need per square meter?
A: This depends on joist spacing, load requirements, and decking material. As a general guideline, typical installations use 4–6 pedestals per square meter for joist-based systems. Contact HUIYA’s technical team for a project-specific calculation.