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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 Whitewood FSC 18 x 194mm PSE Timber Joinery Whitewood FSC 18 x 194mm

    PSE Timber Joinery Whitewood FSC 18 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)...
  • PSE Timber Joinery Redwood FSC 45 x 220mm PSE Timber Joinery Redwood FSC 45 x 220mm

    PSE Timber Joinery Redwood FSC 45 x 220mm

    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
    Special Offer

    Cheshire Mouldings Clear Pine Stripwood 44 x 9 x 2400mm

    The Pine Stripwood are highly practical and versatile planed timber. Smooth and square-edged for a professional finish, ideal for boxing in and use as support battens. Perfect for those simple DIY jobs.
  • Special Offer
    Special Offer

    Cheshire Mouldings PSE Clear Pine Stripwood 9 x 68 x 2400mm

    The Pine Stripwood are highly practical and versatile planed timber. Smooth and square-edged for a professional finish, ideal for boxing in and use as support battens. Perfect for those simple DIY jobs.
  • PSE American White Oak Kiln Dried 25mm x 150mm

    PSE American White Oak Kiln Dried 25mm x 150mm

    £22.60 - £129.93 per piece (Ex VAT)
    £27.12 - £155.92 per piece (Inc VAT)
    25x150mm PSE American White Oak Kiln Dried timber is an attractive timber, plane finished with a smooth edge making it ideal for interior joinery projects. This planed square edge hardwood timber is multi-function and easy to work with. PSE white oak is...
    £22.60 - £129.93 per piece (Ex VAT)
    £27.12 - £155.92 per piece (Inc VAT)
  • PSE American White Oak Kiln Dried 25mm x 50mm

    PSE American White Oak Kiln Dried 25mm x 50mm

    £7.50 - £43.13 per piece (Ex VAT)
    £9.00 - £51.76 per piece (Inc VAT)
    25x50mm PSE American White Oak Kiln Dried timber is an attractive timber, plane finished with a smooth edge making it ideal for interior joinery projects. This planed square edge hardwood timber is multi-function and easy to work with. PSE white oak is...
    £7.50 - £43.13 per piece (Ex VAT)
    £9.00 - £51.76 per piece (Inc VAT)
  • PSE American White Oak Kiln Dried 50mm x 100mm

    PSE American White Oak Kiln Dried 50mm x 100mm

    £50.80 - £292.08 per piece (Ex VAT)
    £60.96 - £350.50 per piece (Inc VAT)
    50x100mm PSE American White Oak Kiln Dried timber is an attractive timber, plane finished with a smooth edge making it ideal for interior joinery projects. This planed square edge hardwood timber is multi-function and easy to work with. PSE white oak is...
    £50.80 - £292.08 per piece (Ex VAT)
    £60.96 - £350.50 per piece (Inc VAT)

  • PSE Timber Joinery Hardwood 50 x 100mm

    Discover the beauty and functionality of our Premium Planed Square Edge (PSE) Hardwood Timber, crafted to provide exceptional stability and durability. Perfect for a variety of projects, this natural timber product is available in different lengths,...

  • PSE Timber Joinery Hardwood 50 x 75mm

    Discover the beauty and functionality of our Premium Planed Square Edge (PSE) Hardwood Timber, crafted to provide exceptional stability and durability. Perfect for a variety of projects, this natural timber product is available in different lengths,...
  • PSE Timber Joinery Redwood FSC 19 x 125mm PSE Timber Joinery Redwood FSC 19 x 125mm

    PSE Timber Joinery Redwood FSC 19 x 125mm

    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 32 x 150mm PSE Timber Joinery Redwood FSC 32 x 150mm

    PSE Timber Joinery Redwood FSC 32 x 150mm

    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 32 x 225mm PSE Timber Joinery Redwood FSC 32 x 225mm

    PSE Timber Joinery Redwood FSC 32 x 225mm

    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 32 x 38mm PSE Timber Joinery Redwood FSC 32 x 38mm

    PSE Timber Joinery Redwood FSC 32 x 38mm

    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 UC3u Redwood FSC 20 x 94mm PSE Timber Joinery UC3u Redwood FSC 20 x 94mm

    PSE Timber Joinery UC3u 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 UC3u Redwood PEFC 20 x 44mm PSE Timber Joinery UC3u Redwood PEFC 20 x 44mm

    PSE Timber Joinery UC3u Redwood PEFC 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 UC3u Redwood PEFC 20 x 69mm PSE Timber Joinery UC3u Redwood PEFC 20 x 69mm

    PSE Timber Joinery UC3u Redwood PEFC 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 UC3u Redwood PEFC 20 x 94mm PSE Timber Joinery UC3u Redwood PEFC 20 x 94mm

    PSE Timber Joinery UC3u Redwood PEFC 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)...

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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