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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 American White Oak Kiln Dried 25 x 50mm

    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...
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    PSE American White Oak Kiln Dried London 50 x 100mm

    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...

  • PSE Douglas Fir 120 x 120 x 2200mm

    Planed square edge Douglas Fir timber measuring 120 x 120 x 2200mm. Ideal for structural and joinery projects. Buy online today.
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    PSE Kiln Dried American Oak White 16 x 38mm

    £11.25 - £30.00 per piece (Ex VAT)
    £13.50 - £36.00 per piece (Inc VAT)
    Kiln dried American White Oak planed square edge timber measuring 16 x 38mm for premium joinery. Buy online today.
    £11.25 - £30.00 per piece (Ex VAT)
    £13.50 - £36.00 per piece (Inc VAT)
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    PSE Sepele 15 x 70 x 1000mm

    Planed square edge Sapele timber measuring 15 x 70 x 1000mm for premium joinery applications. Buy online today.
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    PSE Timber Joinery Hardwood 50 x 100mm (4x2)

    Planed square edge hardwood joinery timber measuring 50 x 100mm for premium woodworking projects. Buy online today.
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    PSE Timber Joinery Hardwood 50 x 75mm (4x2)

    Planed square edge hardwood joinery timber measuring 50 x 75mm for high quality construction and joinery. Buy online today.
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    PSE Timber Joinery Redwood FSC 32 x 225mm (Finished Size 27x216mm)

    FSC redwood planed square edge joinery timber 32 x 225mm finished size 27 x 216mm. Buy online today.
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    PSE Timber Joinery Redwood FSC 32 x 38mm (Finished Size 27x33mm)

    FSC redwood planed square edge joinery timber 32 x 38mm finished size 27 x 33mm. Buy online today.
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    PSE Timber Joinery Redwood PEFC 38 x 225mm (Finished Size 33 x 219mm)

    PEFC redwood planed square edge joinery timber 38 x 225mm finished size 33 x 219mm. Buy online today.
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    PSE Timber Joinery UC3u Redwood PEFC 25 x 100mm (Finished Size 20x94mm)

    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...

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.