FX7 NCTX7S Steel Window Frame – Modern, Durable & Cost‑Effective

The FX7 NCTX7S Steel Window Frame by BuildersStoreSA delivers robust structural performance and a sleek industrial aesthetic—perfect for renovations, new builds, and feature installations across Johannesburg, Lenasia, Roodepoort, and throughout South Africa. Created using high-grade structural steel, this frame complements both steel and aluminium window systems, offering a cost-effective alternative that still meets modern design and durability standards.

Features & Specifications FX7 NCTX7S Steel Window Frame

• Material: Structural-grade steel—can be adapted for steel or aluminium glazing systems
• Finish: Suitable to prime or paint to integrate with bronze, white, charcoal, or natural finishes
• Sizes: Custom-order FX7 with Width x Height—reference NCTX7S for exact model
• Galvanization & Coatings: Optional galvanization or powder coat for weather resilience
• Wheel Repair: Precision cut-outs and mounting brackets facilitate easy installation
• Warranty: Standard structural support guarantee by BuildersStoreSA

Local & Size-Focused SEO Keywords

• Aluminium windows Lenasia: FX7 frames are compatible and available through our BuildersStoreSA aluminium window solutions.
• Aluminium windows sizes: Steel FX7 frames allow flexibility across popular aluminium sizes (900×900 mm, 1.2×1.5 m, etc.).
• Aluminium windows catalogue: View aluminium window options via our linked catalogue PDFs.
• Aluminium windows near me & prices: We supply and deliver FX7 frames alongside aluminium windows to Johannesburg, Lenasia, Roodepoort.
• Cheap aluminium windows near me: FX7 frames offer a more affordable base for glazing without compromising durability.
• Second hand aluminium windows near me: FX7 frames are reusable—ask about second-hand availability.
• Aluminium windows price list: Includes FX7 frame-based package options competitive with Cashbuild & Build It.

Benefits & Practical Use Cases

• High Strength: Structural-grade steel supports large window openings with stability.
• Cost Efficiency: FX7 reduces glazing cost compared to full aluminium framing while maintaining aesthetics.
• Customizable Finish: Paint or powder coat to match any aluminium window—or keep industrial steel look.
• Durable Over Time: Steel-based FX7 frames offer long-lasting support for glass façades.
• Installation Simplified: Bracket and wheel allowances speed install for steel‑glazed or aluminium windows.
• Design Flexibility: Supports fixed, casement, or top hung glazing configurations.

Why Choose FX7 Frames from BuildersStoreSA?

• Versatile Compatibility: Use with aluminium window systems for sleek installations across Lenasia & Johannesburg.
• Built for Local Conditions: Steel frames can be tailored to W and D loads—ideal for coastal or high-rise environments.
• Competitive Pricing: FX7 frame packages priced to compete with Cashbuild & Mithal Aluminium & Glass setups.
• Supporting Sustainability: Steel is recyclable and FX7 can be reused in future builds.

Installation & Maintenance Advice

• Verify structural opening is level, square, and sealed.
• Apply rust-inhibitor primer or galvanization before painting/coating.
• Install steel FX7 frames prior to glazing to ensure alignment.
• Use silicone joints between steel frame and aluminium window sash for waterproofing.
• Inspect annually—touch-up paint to prevent corrosion.

Technical Specifications

Related Products on BuildersStoreSA

• Aluminium Window Catalogue PDF
• 1.2×1.2 m Bronze Aluminium Window
• Window Hardware & Accessories

External Authoritative Resources

Understand aluminium vs steel framing .

Review SA building code requirements from the South African Bureau of Standards (SABS).

FAQs – Targeted for Top Search Queries

What are aluminium windows?

Frames made of lightweight, strong, and corrosion-resistant aluminium alloy; typically sized between 900×900 mm and 2400×1800 mm, and compatible with FX7 steel support frames.

What is the advantage of an aluminium window?

They are sleek, low-maintenance, durable, and recyclable—ideal for modern living.

How good are aluminium windows?

When used with FX7 support frames, they achieve strong, long-lasting installations that are both functional and stylish.

Why is aluminium used to make windows?

Its strength-to-weight ratio, corrosion resistance, and recyclability make it the preferred framing material.

What is the disadvantage of aluminium windows?

They conduct heat, but thermal breaks and double glazing, combined with FX7, improve energy efficiency.

How expensive are aluminium windows?

Package costs vary; combined FX7 + aluminium window packages are competitive with Cashbuild and Build It pricing.

What is the lifespan of an aluminium window?

Well-maintained frames last 20–30 years, especially when supported by durable FX7 steel framing.

Which is better, aluminium or PVC windows?

Aluminium offers durability and aesthetics; PVC provides insulation and cost benefits—FX7 allows mixing materials where needed.

Which is a disadvantage of aluminium window frames?

Heat conduction without thermal breaks, but this is mitigated by double glazing and steel support systems like FX7.

Why do aluminium windows fail?

Poor installation and sealing often cause failure—FX7 steel frames provide extra alignment and sealing support.

What do I need to install aluminium windows?

A square opening, FX7 frame support, silicone sealing, and finished aluminium glazing. BuildersStoreSA provides the full package.

Do aluminium windows rust?

No—aluminium does not rust, but steel FX7 frames need coating to prevent corrosion.

Order or Contact Us

Order the **FX7 NCTX7S Steel Window Frame** and compatible aluminium windows through BuildersStoreSA.com. For pricing quotes, custom sizing, or expert installation advice in Lenasia, Roodepoort, or Johannesburg—please contact our team now!