Aluminum Window Sizes & Pricing Guide Nepal 2026
Complete cost guide for 3x3, 4x4, 5x4 windows - standard sizes, pricing by quality & room-specific recommendations for Kathmandu
Quick Price Reference (Medium Quality)
3x3 feet
Rs. 7,500
9 sq ft
3x4 feet
Rs. 9,000
12 sq ft
4x4 feet
Rs. 11,500
16 sq ft
4x5 feet
Rs. 13,500
20 sq ft
5x4 feet
Rs. 14,000
20 sq ft
5x5 feet
Rs. 16,500
25 sq ft
* Prices include frame, 5mm glass, basic hardware, jali. Installation extra.
When planning window installations in Nepal, understanding standard sizes and their costs is crucial for budgeting. This guide breaks down aluminum window pricing by size, helping you make informed decisions for your Kathmandu home.
We'll cover the most common window sizes (3x3, 3x4, 4x4, 4x5, 5x4, 5x5), pricing across three quality levels, and recommendations for different rooms.
Complete Pricing by Size & Quality
| Size (ft) | Sq Ft | Basic | Medium | Premium |
|---|---|---|---|---|
| 3 x 3 | 9 | Rs. 6,000-7,500 | Rs. 7,500-9,000 | Rs. 9,000-11,000 |
| 3 x 4 | 12 | Rs. 7,500-9,000 | Rs. 9,000-11,000 | Rs. 11,000-13,000 |
| 4 x 3 | 12 | Rs. 7,500-9,000 | Rs. 9,000-11,000 | Rs. 11,000-13,000 |
| 4 x 4 | 16 | Rs. 9,000-11,000 | Rs. 11,000-13,000 | Rs. 13,000-15,000 |
| 4 x 5 | 20 | Rs. 11,000-13,000 | Rs. 13,000-15,000 | Rs. 15,000-17,000 |
| 5 x 4 | 20 | Rs. 11,500-13,500 | Rs. 13,500-15,500 | Rs. 15,500-18,000 |
| 5 x 5 | 25 | Rs. 13,500-16,000 | Rs. 16,000-18,500 | Rs. 18,500-22,000 |
| 6 x 4 | 24 | Rs. 15,000-18,000 | Rs. 18,000-21,000 | Rs. 21,000-25,000 |
Basic Quality
- • 1.0-1.1mm aluminum
- • Standard powder coating
- • 5mm glass
- • Basic hardware
- • Standard jali
Medium Quality ⭐
- • 1.2mm aluminum
- • Good powder coating (60 micron)
- • 5-6mm glass
- • Branded hardware
- • Quality jali
Most popular choice
Premium Quality
- • 1.4-1.5mm aluminum
- • Premium coating (80+ micron)
- • 6mm glass or laminated
- • Premium hardware
- • Stainless steel jali
Window Size Recommendations by Room Type
Master Bedroom
Recommended Sizes:
- • 4x4 feet - Ideal (Rs. 11,000-13,000)
- • 4x5 feet - More light (Rs. 13,000-15,000)
- • 5x4 feet - Wide option (Rs. 13,500-15,500)
Why This Size:
- • Good natural light
- • Adequate ventilation
- • Fits standard room (10x12 ft)
- • Balanced cost-benefit
Standard Bedroom / Children's Room
Recommended Sizes:
- • 3x3 feet - Most common (Rs. 7,500-9,000)
- • 3x4 feet - Taller option (Rs. 9,000-11,000)
- • 4x3 feet - Wider option (Rs. 9,000-11,000)
Why This Size:
- • Fits smaller rooms (10x10 ft)
- • Cost-effective
- • Sufficient for ventilation
- • Standard in Nepal construction
Living Room / Hall
Recommended Sizes:
- • 5x4 feet - Standard (Rs. 13,500-15,500)
- • 5x5 feet - Large (Rs. 16,000-18,500)
- • 6x4 feet - Extra wide (Rs. 18,000-21,000)
- • Two 4x4 windows - Alternative
Why This Size:
- • Maximum natural light
- • Makes room feel spacious
- • Good ventilation for large area
- • Aesthetic appeal
Kitchen
Recommended Sizes:
- • 3x3 feet - Most common (Rs. 7,500-9,000)
- • 3x4 feet - More ventilation (Rs. 9,000-11,000)
- • 2.5x3 feet - Small kitchens
Why This Size:
- • Adequate ventilation for smoke
- • Doesn't take wall space needed for cabinets
- • Cost-effective
- • Easy to clean
Bathroom
Recommended Sizes:
- • 2x2 feet - Small (Rs. 4,500-6,000)
- • 2.5x2.5 feet - Medium (Rs. 5,500-7,000)
- • 3x2 feet - Standard (Rs. 6,000-7,500)
Important Features:
- • Must have jali for ventilation
- • Frosted glass for privacy
- • Good powder coating (moisture resistance)
- • Opening type: casement or top-hung
How to Measure Window Opening Correctly
⚠️ Accurate Measurement is Critical
Wrong measurements mean windows won't fit or will have large gaps. Remakes cost money and time. Follow these steps carefully:
1Measure Width (Horizontal)
- • Measure from inside wall to inside wall (not outside)
- • Take 3 measurements: top, middle, bottom of opening
- • Use the smallest measurement
- • Round down to nearest standard size
- • Example: If measurements are 3.2 ft, 3.1 ft, 3.05 ft → order 3 ft window
2Measure Height (Vertical)
- • Measure from bottom of opening to top
- • Take 3 measurements: left, center, right of opening
- • Use the smallest measurement
- • Round down to nearest standard size
- • Example: If measurements are 4.1 ft, 4.0 ft, 4.05 ft → order 4 ft window
3Account for Installation Gap
- • Leave 5-10mm gap on all sides for installation
- • Gap filled with sealant during installation
- • Never order window exact size of opening
- • Professional installers need this gap to adjust and level
💡 Pro Tip: Get Professional Measurement
Most window fabricators offer free measurement service within Kathmandu. This eliminates measurement errors and ensures perfect fit. We strongly recommend using this service, especially for expensive premium windows or custom sizes.
Additional Costs to Consider
| Item | Cost Range | Notes |
|---|---|---|
| Installation per window | Rs. 500-1,200 | Larger windows cost more to install |
| 6mm glass upgrade | +Rs. 500-1,000 | Recommended for 5x4 and larger |
| Designer glass (frosted/tinted) | +Rs. 1,000-2,500 | For bathrooms or privacy |
| Stainless steel jali | +Rs. 800-1,500 | Lasts longer than aluminum jali |
| Custom size (non-standard) | +10-20% | 7-10 days lead time |
| Premium color (wood finish, etc) | +Rs. 1,500-3,000 | Per window |
| Transportation (outside Ring Road) | Rs. 1,000-3,000 | Depends on location |
Case Study: 3-Bedroom Flat Total Cost
Let's calculate total window costs for a typical 3-bedroom flat in Kathmandu using medium quality windows:
Window Requirements:
Budget tip: Most vendors offer 5-10% discount for complete home orders (8+ windows). You might save Rs. 3,500-7,000 by ordering all windows together rather than piecemeal.
Frequently Asked Questions
What is the price of a 3x3 sliding window in Nepal?▼
A 3x3 feet aluminum sliding window costs Rs. 6,000-11,000 in Nepal depending on quality. Basic quality costs Rs. 6,000-7,500, medium quality Rs. 7,500-9,000, and premium quality Rs. 9,000-11,000. This includes aluminum frame, glass, hardware, and jali (net). Installation charges are extra (Rs. 500-800).
How much does a 4x4 aluminum window cost in Nepal?▼
A 4x4 feet aluminum window costs Rs. 9,000-15,000 in Nepal. Basic quality: Rs. 9,000-11,000, Medium quality: Rs. 11,000-13,000, Premium quality: Rs. 13,000-15,000. Price varies based on aluminum profile thickness, powder coating quality, glass type, and hardware brand.
What are standard window sizes in Nepal?▼
Standard aluminum window sizes in Nepal are: 3x3 ft (bedrooms), 3x4 ft (living rooms), 4x4 ft (large bedrooms/halls), 4x5 ft (hall windows), 5x4 ft (wide windows), and 5x5 ft (large hall windows). These sizes are measured in feet (width x height). Custom sizes cost 10-20% more.
How do I measure window size for aluminum windows?▼
Measure window opening width and height in feet from inside the wall. Measure at 3 points (top, middle, bottom for width; left, center, right for height). Use smallest measurement. Example: if width is 3.1, 3.0, 3.05 feet, order 3 feet window. Leave 5-10mm gap for installation. Professional measurement recommended for accuracy.
What window size is best for bedroom in Nepal?▼
For standard bedrooms in Nepal, 3x3 feet or 3x4 feet windows are ideal. Master bedrooms can use 4x4 feet. Children's rooms work well with 3x3 feet. Consider room size, sunlight needs, and ventilation. Building codes recommend window area = 10% of floor area minimum.
Does window size affect price significantly?▼
Yes, larger windows cost significantly more. Price increases are not linear - a 4x4 window (16 sq ft) costs 50-60% more than 3x3 window (9 sq ft), not just 77% more. This is because larger windows need thicker profiles, stronger hardware, and more labor. Installation is also more expensive for large windows.
Can I get custom size aluminum windows in Nepal?▼
Yes, custom sizes are available but cost 10-20% more than standard sizes. Lead time is 7-10 days vs 2-3 days for standard. Custom sizes make sense for old homes, unique architecture, or specific design needs. For new construction, stick to standard sizes to save money.
What glass thickness should I choose for different window sizes?▼
3x3 and 3x4 windows: 5mm glass sufficient. 4x4 and 4x5 windows: 5mm or 6mm glass. 5x4 and 5x5 windows: 6mm glass recommended for safety and less flex. Larger windows need thicker glass to prevent wobbling and breakage. Add Rs. 500-1,000 for 6mm vs 5mm glass.
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