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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%2020x44%20Main.jpg.jpeg PSE%2020x44%20Top.jpg.jpeg

    PSE Timber Joinery Redwood FSC 20 x 44mm (Nominal 25x50)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2044x44%20Main.jpg.jpeg PSE%2044x44%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 44 x 44mm (Nominal 50x50)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2033X12%20MAIN.jpg.jpeg PSE%2033X12%20DETAIL%20ANGLE.jpg.jpeg

    PSE Timber Joinery Redwood FSC 12 x 34mm (Nominal 16x38)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2020x20%20Main.jpg.jpeg PSE%2020x20%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 20 x 20mm (Nominal 25x25)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • Cedar%20Main.jpg.jpeg Cedar%20Straight%20on.jpg.jpeg

    Western Red Cedar PSE Fencing & Screen Slats 18 x 44 x 1830mm

    Western Red Cedar is a premium timber product that is perfect for multiple applications including screening, slatted fencing, contemporary fencing and cladding external buildings. Western Red Cedar is one of the lightest softwoods, with a oven-dry...
  • PSE%2020x69%20Main.jpg.jpeg PSE%2020x69%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 20 x 69mm (Nominal 25x75)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2020x44%20Main%20%20GREEN.jpg.jpeg PSE%2020x44%20Top%20Angle%20GREEN.jpg.jpeg

    PSE Timber Joinery UC3u Redwood FSC 20 x 44mm (Nominal 25x50)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2020x94%20Main.jpg.jpeg PSE%2020x94%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 20 x 94mm (Nominal 25x100)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%208.5x20%20Main.jpg.jpeg PSE%208.5x20%20Top.jpg.jpeg

    PSE Timber Joinery Redwood FSC 8.5 x 20mm (Nominal 13x25)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2020x144%20Main.jpg.jpeg PSE%2020x144%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 20 x 144mm (Nominal 25x150)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2018x44%20Main%20Whitewood.jpg.jpeg PSE%2018x44%20TopAngle%20Whitewood.jpg.jpeg

    PSE Timber Joinery Whitewood FSC 18 x 44mm (Nominal 22x50)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2020x69%20Main.jpg.jpeg PSE%2020x69%20Top.jpg.jpeg

    PSE Timber Joinery Redwood FSC 14 x 69mm (Nominal 19x75)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2033x44%20Main.jpg.jpeg PSE%2033x44%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 33 x 44mm (Nominal 38x50)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2014x20%20Main.jpg.jpeg PSE%2014x20%20Top.jpg.jpeg

    PSE Timber Joinery Redwood FSC 14 x 20mm (Nominal 19x25)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2020x119%20Main.jpg.jpeg PSE%2020x119%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 20 x 119mm (Nominal 25x125)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2020x194%20Main.jpg.jpeg PSE%2020x194%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 20 x 194mm (Nominal 25x200)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2020X33%20MAIN.jpg.jpeg PSE%2020X33%20TOP.jpg.jpeg

    PSE Timber Joinery Redwood FSC 20 x 33mm (Nominal 25x38)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2014x94%20Main.jpg.jpeg PSE%2014x94%20End.jpg.jpeg

    PSE Timber Joinery Redwood FSC 14 x 94mm (Nominal 19x100)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2020x219%20Main.jpg.jpeg PSE%2020x219%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 20 x 219mm (Nominal 25x225)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2044x69%20Main.jpg.jpeg PSE%2044x69%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 44 x 69mm (Nominal 50x75)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2012X44%20MAIN.jpg.jpeg PSE%2012X44%20DETAIL%20ANGLE.jpg.jpeg

    PSE Timber Joinery Redwood FSC 12x 44mm (Nominal 16x50)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2020x169%20Main.jpg.jpeg PSE%2020x169%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 20 x 169mm (Nominal 25x175)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2044x94%20Main.jpg.jpeg PSE%2044x94%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 44 x 94mm (Nominal 50x100)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...
  • PSE%2069x69%20Main.jpg.jpeg PSE%2069x69%20Top%20Angle.jpg.jpeg

    PSE Timber Joinery Redwood FSC 69 x 69mm (Nominal 75x75)

    This is a natural product and it comes in different lengths. We sell this product by the meter, so just order enough quantity to fulfil your needs. Alternatively, if you require specific sizes then please call the sales line. Planed Square Edge (PSE)...

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.

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