4 Everdeck® Non-Structural Composite Decking Joist | 30 x 40 x 2900mm

4 Everdeck® Non-Structural Composite Decking Joist — 30 x 40 x 2900mm

The 4 Everdeck® Non-Structural Joist is designed for laying composite decking directly over existing solid surfaces such as concrete, tar, or tiles. By raising the decking boards off the substrate, the joist creates an air gap that allows water to drain freely and air to circulate beneath the deck — preventing moisture build-up and extending the life of your decking installation.

Key Features

• Non-structural design — Engineered for installation over solid substrates; no complex subframe required
• Drainage & ventilation — Creates an air gap beneath the decking for water runoff and airflow
• Simple installation — Raw bolt directly into the floor surface, then lay your decking boards on top
• Compatible with 4 Everdeck® composite decking boards
• Durable construction — Suited to South African outdoor conditions
• Dimensions: 30 mm × 40 mm × 2900 mm

Ideal Applications

• Laying composite decking over concrete patios or slabs
• Decking installations over existing tar or tiled surfaces
• Balconies and rooftop deck installations on solid substrates
• Renovation projects where an existing surface is being repurposed

Installation Note

Raw bolt the joist directly into the floor at regular intervals, then lay your 4 Everdeck® composite decking boards on top. No structural subframe is required when installing over a solid, level surface.

Specifications

• Width: 30 mm
• Height: 40 mm
• Length: 2900 mm
• Application: Non-structural — solid surface installations only
• Compatible with: 4 Everdeck® composite decking boards

Frequently Asked Questions

What is a non-structural joist?

A non-structural joist is used when your decking is being installed over an existing solid surface (such as concrete, tar, or tiles) that provides the structural support. It raises the decking boards off the surface to allow drainage and airflow, but is not designed to span between supports like a structural joist.

Can I use this joist on a suspended or elevated deck?

No. This joist is rated for non-structural use only — it must be installed over a solid, continuous surface. For suspended or elevated decks, a structural subframe is required.

What decking boards is this joist compatible with?

This joist is designed for use with 4 Everdeck® composite decking boards. Contact us if you need advice on compatibility with other board profiles.

How do I fix the joist to the floor?

Raw bolt the joist directly into the concrete, tar, or tiled surface at regular intervals before laying your decking boards on top.

Can I cut the joist to length?

Yes. The joist can be cut to suit your installation dimensions using standard woodworking or composite cutting tools.

What is the lead time for this product?

This product is usually in stock with a 1–2 day lead time. Nationwide delivery is available across South Africa.

Delivery Information

At Doors Direct, we strive to make the delivery of your quality doors a seamless and convenient experience.

Nationwide Delivery:

Based in Durban, we extend our reach to bring our premium products directly to your doorstep anywhere in South Africa. Our efficient overnight transport ensures that you receive your order promptly.

Cost-Effective Options:

With a diverse range of transport service providers, we have the flexibility to secure competitive quotes, especially for bulk orders. Feel free to contact our office at 031 012 5033 to explore cost-saving options tailored to your needs.

Lead Times and Timely Delivery:

Our commitment to transparency is reflected in the lead times displayed on our website for made-to-order products. Once your order is dispatched, anticipate delivery within 24 – 48 hours, allowing you to enjoy your new doors without unnecessary delays.

Quality Assurance:

Doors Direct takes pride in delivering products that are undamaged and in excellent working order. While we make every effort to maintain the integrity of your purchase, we recognize that, on rare occasions, products may incur damage during shipping.

Damaged Products:

In the unfortunate event that your product arrives damaged, we have a straightforward solution. At our discretion, Doors Direct will either repair or replace damaged items. To facilitate this process, please ensure that the waybill is endorsed with details of the damages. For more details, refer to our comprehensive guarantee policy and terms and conditions at Guarantee Policy and Terms & Conditions.

Contact Us:

Have questions or need assistance? Contact our head office at info@doorsdirect.co.za or 087 012 5286. We are here to ensure your satisfaction at every step of the journey.

Thank you for choosing Doors Direct – Elevating your door-buying experience with quality, efficiency, and reliability.