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PSE

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

PSE timber (also known as planed timber) is machine-planed on all four sides to create square edges and a sleek appearance, making it perfect for visible joinery, furniture making, shelving, and interior framing.

We offer a wide variety of PSE timber sizes to suit different applications, from small DIY jobs to large-scale construction or carpentry work. 

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  • PSE Timber Joinery Redwood FSC 20 x 44mm PSE Timber Joinery Redwood FSC 20 x 44mm

    PSE Timber Joinery Redwood FSC 20 x 44mm

    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 Timber Joinery Redwood FSC 44 x 44mm PSE Timber Joinery Redwood FSC 44 x 44mm

    PSE Timber Joinery Redwood FSC 44 x 44mm

    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 Timber Joinery Redwood FSC 12 x 34mm PSE Timber Joinery Redwood FSC 12 x 34mm

    PSE Timber Joinery Redwood FSC 12 x 34mm

    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 Timber Joinery Redwood FSC 20 x 20mm PSE Timber Joinery Redwood FSC 20 x 20mm

    PSE Timber Joinery Redwood FSC 20 x 20mm

    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)...
  • Special Offer
    Western Red Cedar PSE Fencing & Screen Slats 18 x 44 x 1830mm Western Red Cedar PSE Fencing & Screen Slats 18 x 44 x 1830mm
    Special Offer

    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 Timber Joinery Redwood FSC 20 x 69mm PSE Timber Joinery Redwood FSC 20 x 69mm

    PSE Timber Joinery Redwood FSC 20 x 69mm

    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 Timber Joinery Redwood FSC 20 x 94mm PSE Timber Joinery Redwood FSC 20 x 94mm

    PSE Timber Joinery Redwood FSC 20 x 94mm

    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 Timber Joinery Redwood FSC 8.5 x 20mm PSE Timber Joinery Redwood FSC 8.5 x 20mm

    PSE Timber Joinery Redwood FSC 8.5 x 20mm

    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 Timber Joinery Redwood FSC 20 x 144mm PSE Timber Joinery Redwood FSC 20 x 144mm

    PSE Timber Joinery Redwood FSC 20 x 144mm

    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 Timber Joinery Whitewood FSC 18 x 44mm PSE Timber Joinery Whitewood FSC 18 x 44mm

    PSE Timber Joinery Whitewood FSC 18 x 44mm

    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 Timber Joinery Redwood FSC 14 x 20mm PSE Timber Joinery Redwood FSC 14 x 20mm

    PSE Timber Joinery Redwood FSC 14 x 20mm

    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 Timber Joinery Redwood FSC 14 x 69mm PSE Timber Joinery Redwood FSC 14 x 69mm

    PSE Timber Joinery Redwood FSC 14 x 69mm

    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 Timber Joinery Redwood FSC 14 x 94mm PSE Timber Joinery Redwood FSC 14 x 94mm

    PSE Timber Joinery Redwood FSC 14 x 94mm

    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 Timber Joinery Redwood FSC 20 x 219mm PSE Timber Joinery Redwood FSC 20 x 219mm

    PSE Timber Joinery Redwood FSC 20 x 219mm

    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 Timber Joinery Redwood FSC 12x 44mm PSE Timber Joinery Redwood FSC 12x 44mm

    PSE Timber Joinery Redwood FSC 12x 44mm

    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 Timber Joinery Redwood FSC 20 x 119mm PSE Timber Joinery Redwood FSC 20 x 119mm

    PSE Timber Joinery Redwood FSC 20 x 119mm

    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 Timber Joinery Redwood FSC 33 x 44mm PSE Timber Joinery Redwood FSC 33 x 44mm

    PSE Timber Joinery Redwood FSC 33 x 44mm

    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 Timber Joinery Redwood FSC 44 x 69mm PSE Timber Joinery Redwood FSC 44 x 69mm

    PSE Timber Joinery Redwood FSC 44 x 69mm

    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 Timber Joinery Redwood FSC 14 x 33mm PSE Timber Joinery Redwood FSC 14 x 33mm

    PSE Timber Joinery Redwood FSC 14 x 33mm

    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 Timber Joinery Redwood FSC 20 x 33mm PSE Timber Joinery Redwood FSC 20 x 33mm

    PSE Timber Joinery Redwood FSC 20 x 33mm

    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 Timber Joinery Redwood FSC 44 x 94mm PSE Timber Joinery Redwood FSC 44 x 94mm

    PSE Timber Joinery Redwood FSC 44 x 94mm

    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 Timber Joinery Redwood FSC 20 x 169mm PSE Timber Joinery Redwood FSC 20 x 169mm

    PSE Timber Joinery Redwood FSC 20 x 169mm

    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 Timber Joinery Redwood FSC 33 x 69mm PSE Timber Joinery Redwood FSC 33 x 69mm

    PSE Timber Joinery Redwood FSC 33 x 69mm

    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 Timber Joinery Redwood FSC 20 x 194mm PSE Timber Joinery Redwood FSC 20 x 194mm

    PSE Timber Joinery Redwood FSC 20 x 194mm

    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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