Measuring for Curtain Poles vs. Curtain Tracks.

Selecting between curtain poles and tracks is one of the first decisions you'll make when planning your window treatments. Each option offers distinct advantages, but proper measurement techniques differ significantly between the two. This comprehensive guide will walk you through the precise measuring process for both systems, helping you achieve a professional finish regardless of your choice.

Understanding the Fundamental Differences

Before measuring, it's important to understand the key differences between poles and tracks:

Curtain Poles:

• Decorative and visible
• Typically round or cylindrical
• Available in various materials (wood, metal, acrylic)
• Support curtains via rings, eyelets or tabs

Curtain Tracks:

• Discreet and often concealed
• Usually made of aluminium, PVC or metal
• Support curtains via gliders or hooks
• Can be bent for bay windows or curved applications

Essential Measuring Tools

For accurate results, gather these tools before starting:

• Metal tape measure (not fabric)
• Pencil for marking
• Spirit level
• Step ladder for safe access
• Notepad for recording measurements

Measuring for Curtain Poles

Width Measurements

1. Determine window width: Measure the width of your window recess or frame.
2. Calculate overhang: For standard windows, add 15-20cm to each side of the window (30-40cm total) to allow curtains to stack back clear of the glass when open.
3. Finial allowance: Add extra space for finials (decorative end pieces):
   • Small finials: 5-7cm per side
   • Medium finials: 8-12cm per side
   • Large statement finials: 12-15cm+ per side
4. Calculate total pole width: Window width + left overhang + right overhang = pole width (excluding finials)

Example: For a 120cm wide window with 20cm overhang each side and medium finials: 120cm + 20cm + 20cm = 160cm pole, plus approximately 20cm total for finials

Height Positioning

1. Standard height: Position pole 12-15cm above the window frame or recess.
2. Ceiling considerations: Leave at least 5-8cm clearance from the ceiling to allow for bracket installation.
3. Curtain length adjustment: Remember that pole diameter affects curtain length:
   • For standard 28-30mm poles, add 3-4cm to curtain length
   • For larger 35-50mm poles, add 4-6cm to curtain length
   • For extra-large decorative poles, add 6-8cm to curtain length

Bracket Positioning

1. End brackets: Position approximately 10-15cm in from each end of the pole.
2. Centre support: Required for poles over 180cm:
   • For poles 180-240cm: One centre bracket
   • For poles 240-300cm: Two centre supports at equal intervals
   • Note exact measurements for each bracket position

Measuring for Curtain Tracks

Width Measurements

1. Face-fixed tracks (mounted on wall above window):
   • Measure window width
   • Add 15-20cm each side for curtain stacking (30-40cm total)
   • For wave heading systems, add manufacturer's recommended additional width (typically 10-15%)
2. Top-fixed tracks (mounted to ceiling):
   • Measure as above
   • Consider how far track should extend from wall (typically 15-20cm)
3. Recess-fitted tracks:
   • Measure the exact width of the recess
   • Deduct 0.5cm for clearance

Profile Selection Measurements

Different track profiles require specific measurements:

1. Standard profile tracks (glider systems):
   • Measure curtain weight to select appropriate profile strength
   • Lightweight curtains: Standard aluminium profile
   • Medium-weight: Reinforced profile
   • Heavy curtains: Heavy-duty track systems
2. Corded tracks:
   • Maximum recommended length: 6 metres
   • For longer windows, consider centre-opening or multiple track sections
3. Bent or curved tracks:
   • Template required for exact curve measurement
   • Measure at 10cm intervals along the desired curve
   • Note angle of each bend (90° for square bays, custom for bow windows)

Specific Bay Window Considerations

For bay windows, measurement differs significantly between poles and tracks:

Bay Window Poles:

• Measure each straight section separately
• Allow for corner connectors (5-10cm per corner)
• Consider using flexible bay poles with custom bends

Bay Window Tracks:

• Measure the exact perimeter following the bay shape
• For 90° corners, measure to each corner point
• For curved bays, measure at least 5 points along the curve
• Provide a template for custom curves

Measuring for Special Applications

Ceiling-Mounted Systems

Ceiling-Mounted Poles:

• Ensure ceiling structure can support weight
• Measure distance from ceiling to desired curtain length
• Add extra for pole diameter and rings

Ceiling-Mounted Tracks:

• Optimal for rooms with limited wall space
• Measure exact distance from wall to ensure proper clearance
• Allow 2-3cm clearance from wall for curtain pleats

Curtain Track Covers

If using decorative track covers:

• Add 1-2cm to track width measurements for cover fitting
• Measure depth from wall required for cover installation
• Ensure cover length matches track length precisely

Converting Measurements for Curtain Ordering

After determining pole or track measurements, calculate fabric requirements:

For Poles:

• Curtain width = Pole width (excluding finials) × fullness ratio (typically 1.5-2.5)
• Curtain length = Distance from top of pole to desired endpoint, plus ring drop (5-8cm)

For Tracks:

• Curtain width = Track length × fullness ratio (typically 1.5-2.5)
• Curtain length = Distance from top of track to desired endpoint

Common Measuring Mistakes to Avoid

1. Ignoring wall obstructions: Check for light switches, radiators, or furniture
2. Forgetting finial space: Always account for decorative pole ends
3. Missing centre supports: Essential for longer installations
4. Neglecting return measurements: Critical for proper clearance from wall
5. Assuming symmetry: Always measure both sides of windows independently

Final Tips for Professional Results

• Always measure twice, order once
• Consider future-proofing with slightly wider poles/tracks if renovating
• For uneven walls or floors, take multiple measurements
• For unusual windows, create a paper template to verify measurements
• Keep detailed notes of all measurements, including bracket positions

By following these precise measuring guidelines, you'll ensure your curtain poles or tracks fit perfectly, creating the foundation for beautiful, functional window treatments that enhance your space.