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Specification Library
Tender-ready clauses for 21 timber products — written in NBS format and aligned with European standards. Downloadable as editable text files for direct use in your specifications.
Structural Timber · 7 templates
Free C24 timber specification template in NBS format. Pre-written clauses covering grade, moisture content, certification, and tolerances for tender documents.
Complete timber frame specification template covering wall panels, floor cassettes, connections, and certification for residential and commercial buildings.
Trussed rafter specification template per EN 14250. Covers timber grade, connector plates, bracing, and TRADA approved manufacturer requirements.
Complete FD30, FD60, FD90 fire-rated timber door specification covering door, frame, ironmongery, and intumescent seals per BS 476-22 and EN 1634-1.
Acoustic separating timber floor specification per Approved Document E. Covers airborne (DnT,w) and impact (LnT,w) ratings with verified build-ups.
Passivhaus-compliant timber frame specification covering air tightness (n50 ≤ 0.6/h), thermal bridge minimisation, and verified detailing.
Specification for site moisture content monitoring of structural timber. Equipment, frequency, acceptance criteria, and rejection procedure.
Engineered Timber · 5 templates
Free glulam beam specification template per EN 14080. Pre-written NBS clauses covering strength class, appearance class, adhesive type, and dimensions.
Free CLT specification template covering panel layup, strength grades, fire performance, and acoustic ratings. NBS-format clauses for tender documents.
I-joist specification template for residential and commercial floors. Web depth, flange grade, span tables, and connection details in NBS format.
LVL specification template covering grades, sections, and connection details. NBS format clauses for engineered timber lintels and beams.
Timber pedestrian bridge specification for parks, gardens, and commercial settings. Glulam and LVL options with weathering, fixing, and decking detail.
Cladding & Facades · 4 templates
Free timber cladding specification template covering species, profile, fixing system, and coating. NBS format with tolerances and certification.
Solid timber flooring specification covering species, grade, moisture content, finish, and installation method. NBS format clauses for residential and commercial.
Garden palisade fence specification for residential and landscape projects. Covers timber species, treatment, foundation, and connection detail.
Specification for visible/exposed timber structure in commercial and residential interiors. Covers grade, finish, fire performance, and acoustic detailing.
Decking & Outdoor · 1 template
Sustainability · 3 templates
Complete FSC and PEFC procurement specification for tender documents. Chain of custody requirements, evidence verification, and EUDR compliance.
Timber preservative treatment specification template covering Use Classes 1–4, penetration depths, retention rates, and certification per EN 351.
BREEAM timber procurement specification for Mat 03 and Mat 04 credits. Covers responsible sourcing, certification evidence, and lifecycle data.
Bespoke specifications
Our technical team writes bespoke NBS clauses for unusual products, special grades, or project-specific requirements.
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