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PSE

Planed Square Edge timber (PSE) is perfect for internal and decorative projects where a smooth, clean finish matters.

Also called planed timber, PSE timber is machine-planed on all four sides to create square edges and a sleek look, ideal for visible joinery, furniture making, shelving, and interior framing.

We offer a wide range of PSE timber sizes to suit everything from small DIY projects to large-scale construction or carpentry work.

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    PSE Timber Joinery UC3u Redwood FSC 25 x 75mm (Finished Size 20x69mm)

    Planed Square Edge (PSE) Timber is manufactured from Scandinavian Redwood producing a high-quality expectational stable piece of timber. The timber is produced from slow-grown trees for over 60 years, which reduces the likelihood of splitting or twisting...
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    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 12 x 12 x 2400mm (TM621)

    Cheshire Mouldings clear pine PSE stripwood 12 x 12 x 2400mm for woodworking and joinery. Buy online today.
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    PSE Timber Joinery Whitewood FSC 22 x 125mm (Finished Size 18x119mm)

    Planed Square Edge (PSE) Timber is manufactured from Scandinavian Whitewood, offering a strong, straight grained wood with a smooth and even texture. This type of timber can be used for general joinery or carpentry, as well as for use in the building and...
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    PSE Timber Joinery Whitewood FSC 22 x 200mm (Finished Size 18x194mm)

    Planed Square Edge (PSE) Timber is manufactured from Scandinavian Whitewood, offering a strong, straight grained wood with a smooth and even texture. This type of timber can be used for general joinery or carpentry, as well as for use in the building and...
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    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 9 x 34 x 2400mm (TM628)

    Cheshire Mouldings clear pine PSE stripwood 9 x 34 x 2400mm PEFC certified. Buy online today.
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    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 6 x 18 x 2400mm (TM625)

    Cheshire Mouldings clear pine PSE stripwood 6 x 18 x 2400mm for lightweight joinery and finishing. Buy online today.
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    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 9 x 44 x 2400mm (TM634)

    Cheshire Mouldings offer Pine products that are made using a lightweight, straight grained softwood which is easy to work with. Due to its strength, elasticity and relatively low cost, pine is a popular choice to be used in a variety of projects. To...
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    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 15 x 15 x 2400mm (TM622)

    Cheshire Mouldings clear pine PSE stripwood 15 x 15 x 2400mm PEFC certified. Buy online today.
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    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 12 x 21 x 2400mm (TM636)

    Cheshire Mouldings clear pine PSE stripwood 12 x 21 x 2400mm for finishing and trim work. Buy online today.
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    PSE Timber Joinery Redwood FSC 50 x 225mm (Finished Size 45x220mm)

    Planed Square Edge (PSE) Timber is manufactured from Scandinavian Redwood producing a high-quality expectational stable piece of timber. The timber is produced from slow-grown trees for over 60 years, which reduces the likelihood of splitting or twisting...
  • TM620.jpg.jpeg TM681Profile.jpg.jpeg

    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 9 x 9 x 2400mm (TM620)

    Cheshire Mouldings clear pine PSE stripwood 9 x 9 x 2400mm PEFC certified. Buy online today.
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    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 12 x 34 x 2400mm (TM632)

    Cheshire Mouldings clear pine PSE stripwood 12 x 34 x 2400mm for precision joinery. Buy online today.
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    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 9 x 21 x 2400mm (TM627)

    Cheshire Mouldings clear pine PSE stripwood 9 x 21 x 2400mm for decorative joinery. Buy online today.
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    PSE Timber Joinery Redwood FSC 19 x 125mm (Finished Size 14x120mm)

    FSC redwood planed square edge joinery timber 19 x 125mm finished size 14 x 120mm. Buy online today.
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    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 12 x 44 x 2400mm (TM633)

    Cheshire Mouldings clear pine PSE stripwood 12 x 44 x 2400mm for trim and joinery work. Buy online today.
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    Fence Post PSE UC4 Treated Timber Pine R4C UK 95 x 95 x 3000mm (Finished Size 88x88mm)

    UC4 treated pine fence post with rounded corners measuring 95 x 95 x 3000mm finished size 88 x 88mm. Buy online today.
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    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 6 x 25 x 2400mm (TM680)

    Cheshire Mouldings clear pine PSE stripwood 6 x 25 x 2400mm for decorative joinery and woodworking. Buy online today.
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    PSE Timber Joinery Redwood FSC 32 x 150mm (Finished Size 27x144mm)

    FSC redwood planed square edge joinery timber 32 x 150mm finished size 27 x 144mm. Buy online today.
  • TM681.jpg.jpeg TM681Profile.jpg.jpeg

    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 6 x 34 x 2400mm (TM681)

    Cheshire Mouldings clear pine PSE stripwood 6 x 34 x 2400mm PEFC certified for joinery, trims and finishing work. Buy online today.
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    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 9 x 68 x 2400mm (TM667)

    Cheshire Mouldings offer Pine products that are made using a lightweight, straight grained softwood which is easy to work with. Due to its strength, elasticity and relatively low cost, pine is a popular choice to be used in a variety of projects. To...
  • TM629.jpg.jpeg TM681Profile.jpg.jpeg

    Cheshire Mouldings PSE Joinery Clear Pine Stripwood PEFC 6 x 44 x 2400mm (TM629)

    Cheshire Mouldings clear pine PSE stripwood 6 x 44 x 2400mm PEFC certified for precision joinery. Buy online today.
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    Fence Post PSE UC4 Treated Timber Pine R4C UK 95 x 95 x 2400mm (Finished Size 88x88mm)

    UC4 treated pine fence post with rounded corners measuring 95 x 95 x 2400mm finished size 88 x 88mm. Buy online today.
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    Fence Post PSE UC4 Treated Timber Pine R4C UK 95 x 95 x 3600mm (Finished Size 88x88mm)

    UC4 treated pine fence post with rounded corners measuring 95 x 95 x 3600mm finished size 88 x 88mm. Buy online today.
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    PSE American White Oak Kiln Dried 25 x 150mm

    Planed Square Edge (PSE) Timber is manufactured from Kiln Dried White American Oak, often chosen for use in furniture and cabinet making, internal joinery, construction and flooring.The timber will go through a cutting, grading and kiln drying process at...

Planed Square Edge Timber

What is PSE timber?

PSE Timber, short for Planed Square Edge timber, is a type of softwood that has been machine-planed on all four sides to create a smooth surface and precise, square edges.

Unlike rough sawn timber, which has a more rustic, unfinished look, PSE timber offers a clean, uniform appearance that makes it ideal for visible applications such as interior joinery, furniture, shelving, and decorative features.

The planing process not only enhances the timber’s visual appeal but also makes it easier and safer to handle, reducing the risk of splinters and improving its suitability for painting, staining, or varnishing.

Common Uses for PSE Timber:

  • Interior joinery
  • Furniture making
  • Shelving and storage
  • Window boards and skirting
  • Boxing in pipework
  • Decorative trim and finishing

Benefits of Using PSE Timber:

  • Smooth finish ideal for painting or staining
  • Easy to handle and work with
  • Reduced need for sanding or further preparation
  • Clean, uniform sizing for a professional finish
  • Suitable for a wide range of interior applications

Explore our full range online, or visit your local Howarth branch to speak with one of our timber experts. Many branches also offer a convenient timber cutting service to get the exact size you need. Find your nearest branch here.

Frequently Asked Questions

Whitewood or Redwood?
Whitewood and Redwood are not technical terms but instead relate to the type of tree that the wood has been sourced from. As such, choosing which one to use for your PSE timber is generally done to personal preference. Whitewood is a fast-growing spruce that is native to wetter parts of the world. Due to the speed that it grows, whitewood has a wide grain and is light. Redwood, on the other hand, is most commonly derived from pine which is native to cooler parts of the world. Compared to Whitewood, Redwood looks neater.
Why do PSE products have two sizes?
Due to the nature of PSE, all PSE timbers come with two sizes: The first size listed is the nominal size, whilst the second is the finished size; this second one is the size that you will receive. Nominal relates to the rough sawn and unprocessed dimensions of timber as it is cut, graded and kiln dried in a mill. The finished size relates to the timber that has been machined (this involves a series of sharp cutters revolving at high speeds over the timber), shaving it down to a smooth and more uniform dimension, that is more attractive.