Curtain Pole Diameter Guide

Choosing the right curtain pole diameter is just as important as selecting the right style or finish of your Curtain Pole. The diameter affects the overall appearance of the window, the weight the pole can support and the style of room you're trying to create.

In this guide, we'll explain the differences between the most common curtain pole diameters and help you decide which option is best for your home.

Does Curtain Pole Diameter Matter?

Yes. A larger diameter curtain pole creates a bolder, more substantial look, while a smaller diameter pole offers a more subtle appearance.

The right diameter will depend on:

• The size of your window
• The weight of your curtains
• Your interior style
• Whether you're choosing a metal or wooden curtain pole

As a general rule, larger windows and heavier curtains often benefit from larger diameter poles.

Curtain Pole Diameter Comparison

Diameter	Material Options	Best For
25mm	Metal Only	Standard windows and lighter curtains
28mm	Metal & Wood	Most homes and medium-weight curtains
35mm	Metal & Wood	Larger windows and heavier curtains
45mm	Wood Only	Large windows and statement interiors
50mm	Wood Only	Wide windows and traditional properties
55mm	Wood Only	Extra-large windows and grand spaces

25mm Curtain Poles

25mm curtain poles are one of the most popular choices for modern homes.

They provide a clean, balanced appearance without overwhelming the window. Browse our range of 25mm Curtain Poles for standard windows and lighter curtains.

Best for:

• Standard-sized windows
• Lightweight to medium-weight curtains
• Contemporary interiors
• Bedrooms and smaller living spaces

If you're unsure where to start, a 25mm pole is often a safe and versatile option.

28mm Curtain Poles

28mm curtain poles offer slightly more visual presence than a 25mm pole while remaining suitable for most rooms.

Many customers choose 28mm poles when they want a stronger, more substantial look without moving into oversized designs.

Best for:

• Medium to large windows
• Medium-weight curtains
• Modern and traditional interiors
• Living rooms and dining rooms

28mm poles are often considered the perfect middle ground between style and practicality. Our collection of 28mm Curtain Poles offers one of the most versatile solutions for modern homes.

35mm Curtain Poles

35mm curtain poles are the largest diameter commonly available in metal curtain poles and are ideal for larger windows.

The increased diameter creates a stronger visual impact and offers additional support for heavier curtains.

Best for:

• Large windows
• Heavy curtains
• Feature windows
• Larger living spaces

If you're dressing wide patio doors or statement windows, a 35mm curtain pole is often an excellent choice. Explore our range of 35mm Curtain Poles, ideal for larger windows and heavier curtain fabrics.

45mm Curtain Poles

45mm curtain poles are typically available in wooden designs and offer a classic, substantial appearance.

They work particularly well in traditional homes where the curtain pole is intended to be a decorative feature.

Best for:

• Larger windows
• Traditional interiors
• Country-style homes
• Medium to heavy curtains

50mm Curtain Poles

50mm wooden curtain poles make a strong design statement and are often chosen for period properties and larger rooms.

They provide a premium, substantial appearance that complements heavier fabrics and larger window openings.

Best for:

• Large windows
• Period properties
• High ceilings
• Heavy curtains

55mm Curtain Poles

55mm curtain poles are the largest standard diameter available in wooden curtain poles.

These impressive poles are designed for large-scale spaces where a smaller pole may appear out of proportion.

Best for:

• Extra-large windows
• Grand interiors
• Heavy lined curtains
• Traditional and luxury homes

Metal vs Wooden Curtain Pole Diameters

Metal Curtain Poles

Our metal curtain poles are available in:

• 25mm
• 28mm
• 35mm

Our Metal Curtain Poles are ideal for both contemporary and traditional interiors and are available in a wide range of finishes including Black Curtain Poles, Chrome Curtain Poles, Silver Curtain Poles and Antique Brass Curtain Poles.

Wooden Curtain Poles

Our wooden curtain poles are available in:

• 28mm
• 35mm
• 45mm
• 50mm
• 55mm

Our Wooden Curtain Poles offer greater flexibility for larger windows and are particularly popular in traditional, country and period-style interiors. Oak finishes remain one of our most popular choices.

Which Curtain Pole Diameter Should I Choose?

Before choosing a diameter, make sure you've accurately measured your window. Our How to Measure for a Curtain Pole Guide can help.

As a simple guide:

Choose 25mm if:

• You have a standard-sized window
• Your curtains are lightweight or medium weight
• You prefer a subtle appearance

Choose 28mm if:

• You want a versatile option suitable for most rooms
• You have medium-weight curtains
• You prefer a slightly more substantial look

Choose 35mm if:

• If you're deciding between a pole and a track for a larger window, you may also find our Curtain Pole vs Curtain Track Guide helpful.
• Your curtains are heavy
• You want a statement finish

Choose 45mm, 50mm or 55mm if:

• You are choosing a wooden curtain pole
• You have a large or extra-large window
• You want the pole to become a feature of the room

Frequently Asked Questions

What is the most popular curtain pole diameter?

For most homes, 28mm curtain poles are the most popular choice. They offer a good balance between strength and appearance, making them suitable for a wide range of window sizes and curtain weights.

Is a 25mm curtain pole strong enough?

Yes. A 25mm curtain pole is suitable for most standard windows and lightweight to medium-weight curtains. For particularly heavy curtains or wider windows, a larger diameter may be a better option.

Is a 35mm curtain pole better than a 28mm pole?

Not necessarily. A 35mm curtain pole offers greater visual impact and is often preferred for larger windows or heavier curtains. A 28mm pole remains an excellent choice for most standard-sized windows.

What size curtain pole should I use for a large window?

For large windows, patio doors or heavy curtains, we typically recommend a 35mm curtain pole or a larger wooden curtain pole in 45mm, 50mm or 55mm diameters.

Are larger curtain poles stronger?

Generally, yes. Larger diameter curtain poles can provide greater support and are often better suited to wider windows and heavier curtain fabrics.

Do eyelet curtains work with all curtain pole diameters?

Most eyelet curtains are designed to work with standard curtain pole diameters such as 25mm and 28mm. Always check the internal diameter of the eyelets before purchasing a larger diameter pole.

Do curtain pole diameters include the finials?

No. Curtain pole diameter refers to the thickness of the pole itself and does not include the decorative finials fitted to either end.

Can I use a wooden curtain pole for heavy curtains?

Yes. Larger diameter wooden curtain poles, particularly 35mm, 45mm, 50mm and 55mm options, are an excellent choice for supporting heavier curtain fabrics while creating a substantial, premium look.

Still Need Help?

If you're unsure which curtain pole diameter is right for your window, our team is always happy to help.

You may also find these guides useful:

• How to Measure for a Curtain Pole
• Curtain Pole vs Curtain Track: Which Is Right for Your Home?
• Bay Window Curtain Pole Buying Guide
• Made-to-Measure Curtain Track Guide

Contact us before ordering and we'll recommend the most suitable option based on your window size, curtain weight and preferred style.

Shop by Diameter

Browse our full range of:

• 25mm Curtain Poles
• 28mm Curtain Poles
• 35mm Curtain Poles
• 45mm Wooden Curtain Poles
• 50mm Wooden Curtain Poles
• 55mm Wooden Curtain Poles