Dense select structural Grade 38mm x 90mm

£18.95 excluding VAT


Dense select structural (DSS) C24 grade Southern yellow pine is a strong structurally capable material with a high aesthetic.

DSS grading rules allow some knots and wane, but these are limited.

Treated to UC4 ground contact ,and Kiln dried after treatment, this section provides a strong stable material for deck framing, screen building and crafting outdoor timber structures .

Sold extensively to conventional and composite deck construction.

At a glance

  • DSS structural grade stres rated C24
  • UC4 treated for ground contact
  • Some knots and wane may occur but generally of good appearance
  • Grown in the Southern states of the USA
  • Highest export grade Southern pine framing timber.
  • Available in 4890mm lengths only
  • Recommended Fixings – Stainless steel 5x75mm or 6.5x100mm landscape screws.
  • Colour will darken naturally to a nut brown with UV exposure or can be coloured with a tinted deck oil to suit any taste.




Dense Select Structural grade 38x90mm Southern yellow pine is produced from very low knot count tight grain dense timber produced at one specialty mill in Mississippi.

This material is treated UC4 (ground contact) and with its super high 95% treatment uptake rate , kiln dried stability C24 stress rating and a US 30 year rot & decay warranty it is an excellent choice

for framing and building on any exterior project where durability and strength are required.

A big seller to the composite deck sector.

Also available in a Clear grade on request.

Additional information

board length



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