Roofing Shingles and C24 Timber
Roofing shingles and C24 timber for new roofs, extensions, garden rooms and outbuildings: premium Certigrade Western Red Cedar shingles with ridge and hip caps, plus pressure treated C24 strength graded joists and rafters from 3 x 2 to 8 x 2 inch, all with free UK delivery.
8 products
![C24 5"x2" - 47 x 125mm structural construction treated timber joist premium planed smooth](data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="400" height="300"%3E%3Crect fill="%23f3f4f6" width="400" height="300"/%3E%3Ctext fill="%239ca3af" font-family="sans-serif" font-size="18" dy="10.5" font-weight="bold" x="50%25" y="50%25" text-anchor="middle"%3ENo Image%3C/text%3E%3C/svg%3E)
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£124.17
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£148.98
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£198.59
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C24 4"x2" - 47 x 100mm structural construction treated timber joist premium planed smooth
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£84.26
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£66.46
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Cedar Shingles Bundle Premium Certigrade® 5X Graded Blue Label (L) 406mm 2.32m2 Coverage Per pack (1 Bundle)
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£332.86
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Ridge And Hip Shingle Cap Blue Label Cedar (4.5 Linear Metres In A Pack)
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£281.03
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Shingles No 2 Graded Cedar Red Label
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£119.12
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0.00 m²
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Structural roofing timber and cedar shingles
From the rafters to the finished roof covering, we supply quality roofing timber for builders, roofers and self-builders across the UK.
C24 structural timber
C24 is a strength class for softwood under BS EN 338. Each piece is graded for strength, making it suitable for rafters, joists, purlins, wall plates and decking frames. Our treated C24 is pressure treated against rot and insects and available in popular sizes:
- 3 x 2 inch (45 x 75mm)
- 4 x 2 inch (47 x 100mm)
- 5 x 2 inch (47 x 125mm)
- 6 x 2 inch (47 x 150mm)
- 8 x 2 inch (47 x 200mm)
Joist and rafter sizes must be designed for the span and loading. Use span tables or ask your structural engineer or Building Control.
Western Red Cedar shingles
Cedar shingles are a beautiful, lightweight and naturally durable roofing and wall covering. We supply Certigrade Blue Label No 1 premium shingles, Red Label No 2 shingles and matching ridge and hip caps. Learn more in our Western Red Cedar shingles guide.
Roofing timber FAQs
What is the difference between C16 and C24?
C24 is stronger and stiffer than C16, so it can span further or carry more load for the same size.
Can cedar shingles be used on walls?
Yes, cedar shingles make a striking wall cladding as well as a roof covering.
What pitch do cedar shingles need?
Typically a minimum roof pitch of around 14 degrees with a reduced exposure, and steeper pitches allow more exposure. Follow the shingle grade guidance.
See also decking joists and substructure.
Roofing Shingles and C24 Timber FAQs
Common questions about our roofing shingles and c24 timber specifications, applications, and ordering.