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Choosing square newel posts | The different options of wood and sizes available

Square newel posts provide a classic, yet simple addition to your staircase. One of the most cost-effective options you can choose, they are also a great choice if you are on a budget. When choosing square newel posts, it is useful to know the different options available and how to choose the best option for you.

This guide will explain the different materials of square newel posts available, how to choose the right size and provide guidance on choosing newel caps. It will also answer frequently asked questions on choosing newel posts.

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Find out what options of wood are available in a square design.

Read how to choose the right sized newel post for your staircase.

Read the difference between complete, pegged and half newel posts.

Find out what types of newel caps are ideal for a square newel post.

We answer frequently asked questions on choosing newel posts.

What options of wood can I choose from?

You can choose from the following types of woods when buying plain square newel posts:

Oak square newel posts

Oak is extremely tough and resistant to dents and scratches. The distinctive tiger-stripe on oak makes it instantly recognisable. Oak staircase parts can add character and warmth to your staircase. The toughness and durability of oak means it is more expensive than options such as pine. However, we aim to offer posts to suit all budgets.

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Oak plain square newel post
  • The 90mm plain square newel post, is a complete piece of timber incorporating the newel base and newel post to form one full length newel post.
  • Oak stair parts come unfinished and can be finished by painting, varnishing or waxing.
  • Newel Post Size: 1500mm x 90mm x 90mm.

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You can find out more about choosing oak square newel posts in our Buyer’s guide to choosing square oak newel posts.

oak plain newel post

Pine square newel posts

Pine is a softwood and is resistant to shrinking and swelling. It’s light, and natural appearance means it goes particularly well with neutrals such as white and cream.

It is essential to bear in mind that pine can be prone to scratches or dents. It is suitable for painting, staining and varnishing, however, needs a knotting solution before painting.

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Pine plain square newel post
  • The 90mm plain square newel post, is a complete piece of timber incorporating the newel base and newel post to form one full length newel post
  • Pine stair parts come unfinished. They can be finished by painting, varnishing or waxing
  • Newel Post Size: 1500mm x 90mm x 90mm

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You can shop our full range of pine square newel posts here.

For more information on choosing pine square newel posts, read our guide to pine square newel posts here.

pine plain square newel post

Walnut square newel posts

Walnut is heavy and strong, yet easily split and worked. Walnut’s dark, rich colouring means it has historically been used for furniture, flooring and a variety of other wood products. Walnut stains and polishes well, and is a durable type of wood.

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Walnut plain square newel post
  • The 90mm plain square newel post, is a complete piece of timber incorporating the newel base and newel post to form one full length newel post.
  • Walnut stair parts come unfinished and can be finished by painting, varnishing or waxing.
  • Newel Post Size: 2000mm x 90mm x 90mm.

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You can shop our full range of walnut square newel posts here.

walnut plain square newel post

White primed square newel posts

The base wood used for the white primed parts is either Birch or Poplar (tulip wood), a knot free, pale hardwood that lends itself to be used for white primed parts. The parts are sprayed white, to a very high standard. White primed square newel posts can provide a modern feel to your staircase.

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White Primed Square Pegged Newel Post
  • The White square pegged newel post is the perfect solution, when you are keeping existing newel bases in place.
  • It has a 50mm diameter peg, which will fit into a 90mm half newel base. A half newel cap is required for the top of the newel post.
  • Newel Post Size: 790mm x 90mm x 90mm.

Shop our selection of white primed square newel posts here.

white primed newel post

Hemlock square newel posts

Hemlock is a non-resinous North African softwood and is a predominantly knot free timber with a straight grain. Due to Hemlock's uniform density, it will take a stain easily with the minimum of colour distortion and does not split or break when being worked with. Being less brittle makes it stronger than many hardwoods and is ideal timber if you wish to paint.

You can shop our hemlock square newel posts here.

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Hemlock square newel post
  • The 90mm plain square newel post, is a complete piece of timber incorporating the newel base and newel post to form one full length newel post.
  • Hemlock stair parts come unfinished. They can be finished by painting, varnishing or waxing.
  • Newel Post Size: 1500mm x 90mm x 90mm.

Shop our full range of square newel posts here to view your options.

hemlock square newel post

What sized square newel post is suitable for my staircase?

The height of your newel post will depend on your stair railing height. In most situations, the newel post is installed either at floor level or at the start of the stair tread, with a simple formula used to calculate newel post heights:

Newel post height = (Rail ÷ 2) + Bottom of rail height + (Top of the block ÷ 2) + Cap mould (if being used). We have a range of square newel post options available, which are designed to suit every staircase size, including 1.5m, 2m, 2.5m and 3m square posts. It is worth bearing in mind that the newel post-measurement will not include the length of the peg.

The difference between complete, pegged and half square newel posts

When choosing a square newel post, you should be aware of whether you need to choose a complete, half or pegged square newel post.

What is meant by a complete newel post?

A complete newel post includes both the newel base and the actual post, with newel caps also attached to some posts. This provides you with a complete newel post unit which is ready for quick installation.

We offer a variety of complete newel post options, which are available to view here.

What is a half square newel post?

Half newel posts tend to be installed on landings where the balustrade attaches to a wall. The post is fixed flush to the wall, resulting in a strong and smart finish. If you are changing the newel posts within a staircase, it is relatively straightforward to completely change the half newel post.

What is a pegged newel post?

Pegged newel posts tend to be the more decorative section of the post, with a fixed length of between 750mm and 850mm long. The posts have a 50mm diameter peg, known as a dowel, which fits into the pre-drilled 50mm hole in the newel base. If the base is already in place and cannot be easily removed, these pegged posts are a quick and simple option, such as this Oak Plain Square Pegged Newel Post.

Choosing a newel cap for square newel posts

Caps with a square base, such as pyramid, flat caps and square acorn caps look best on square newel posts. You can view our full range of newel caps here.

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Hemlock flat cap

  • Recessed out on the underneath to fit onto a 90mm square newel post.
  • Hemlock stair parts come unfinished. They can be finished by painting, varnishing or waxing.
  • Newel Cap Size: 114mm x 27mm.

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hemlock flat cap

Oak pyramid cap

  • The cap is recessed out on the underneath to fit onto a 90 newel post.
  • Oak stair parts come unfinished and can be finished by painting, varnishing or waxing.
  • Newel Cap Size: 53mm x 120mm x 120mm.

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oak pyramid cap

White primed square acorn cap

  • The square acorn cap has 32mm diameter peg, which will fit into the hole on the top of a newel post.
  • This cap is a square design.
  • Newel Cap Size: 84.7mm x 84.7mm x 135mm.

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white primed acorn cap

Choosing newel posts – Frequently asked questions

How do you install newel posts?

If you’re attaching a new newel post to an existing newel base, you’ll need to drill a new 50mm hole into the existing base before you can fit the peg to the newel post. You can do this with a 50mm drill bit or hole saw.

If you’re replacing the newel completely, you can do this either by using the zip bolt newel post fastener or by fixing below floor level.

What is a box newel post?

What styles of newel posts are available?

In addition to the plain square design, we also offer newel posts in the following styles:

What is the difference between box newel posts vs turned newel posts?

Box newels are similar in style to a square newel post; however, they offer a slightly different take as they are more ornate in appearance. Turned newel posts, on the other hand, are made by turning wood on a lathe to create a round design, often with intricate detailing and a mix of square and rounded sections.

turned newel post

Turned newel post

box newel post

Box newel post

How do I care for wooden square newel posts?

You can view our range of staircase finishings and fillings here.

Our recommended product:
  • Just two coats of our Clear Hardwax Oil will protect and enhance wooden surfaces
  • Provides a hard-wearing and attractive finish
  • Quick-drying and easy to maintain

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hardwax oil

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