#1 Construction Grade 90mm x 140mm x 3660mm Timber

£35.95 excluding VAT


#1 Construction grade is a structural grade material from which appearance grade timbers may be selected. A structurally capable material with some knots and no wane , 6mm radius 4 corners .

Extremely robust section of timber ideal for retaining edges, architectural structures and retaining wall applications.

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


At a glance

  • Construction grade
  • Kiln dried to 18%
  • UC4 treated for ground contact
  • Versatile posting and general landscaping material with a long life span
  • 6mm Radius 4 corners
  • Grown in the Southern states of the USA
  • Available in 3660mm lengths only
  • Colour will darken naturally to a nut brown with UV exposure or can be coloured with a tinted deck oil to suit any taste.


SKU: 3050-1 Category:


90 x 140mm #1 Grade is ideal for deck sub structure, beams, pergola’s and post applications
where height and load bearing issues apply.
The material is also useful for retaining walls and planter structures.
#1 grade material contains tight knots and no wane.

6mm radius 4 corners

Additional information

board length



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