United Kingdom Accreditation Service, certifying your timber frame project is manufactured and erected to reliable and quality ISO 9001:2000 procedures SGS - Society General de Surveillance ensures that quality systems and procedures are used in the design, manufacture and erection of your engineered timberframe structure is of the highest standard FSC - Forest Stewardship Council - FSC Timber Frame certification. Benfield ATT hold Chain of Custody certification for the Design, Sales, Manufacture & Distribution of Engineered Timber Structures – FSC endorsed by Greenpeace, Friends of the Earth and WWF and EcoHomes Investors in People, Benfield ATT are one of a few timber frame companies to hold an award for the training and ongoing development of their people and service   Examples of timber frame homes

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Floor Cassettes

With it being essential for floor joist frames and roof structures to be properly engineered, it makes sense to use a firm that designs, manufactures and erects engineered timber structures to manufacture and supply your floor and roof cassettes.


modular components; cassette floors and roofs

Computer Illustration of Modular Components;

image courtesey PCKO Architects


With strict quality control of all our 'off-site manufacturing' facilities, you can be sure that when your floor cassettes, or roof cassettes are craned into position, they will easily drop into place and lock into the structure of your building, no matter how this is constructed.


Working closely with your architects, engineers or other professional construction consultants, we will design, engineer, and manufacture whatever you require using 'I' Beams (e.g. TJI's), metal web 'lattice' joists, moisture controlled solid timbers, or standard stress graded carcassing timber, should you prefer this.


Floor deck surfaces can be of plywood, block-board, OSB, or chipboard ('peel-off' membrane surface protection recommended). Insulation can be factory fitted. Bottom panels can be selected for weatherproofing (e.g. for exposed ground floors), or subsequent ceiling fittings and to improve sound and heat insulation, e.g. for blocks of flats.


As Floor Cassettes are individually-engineered (typically for larger projects where speed is of the essence) there is currently no standard pricing available. Please send us your drawings for a Free Comprehensive Estimate, where we will be pleased to quote for the Design, Engineering, Delivery, Fit and Crane Hire too!



Short lead times and fast turn-round available.


Whether you are an architect, quantity surveyor, builder, developer, self builder, or other building professional, wherever you are, whatever you need, talk to us at the earliest stage possible to secure the most cost effective solution for your project.


Call 01291 437 050, or click here to e-mail us your requirements, now.



Chartered Building Consultancy - timber frame, OSM (off-site manufacture) and engineered timber structure advisors. Timber Research and Development Association – our work with TRADA ensures high quality, eco-friendly engineered Timber Frame build projects. The Green Register of Construction Professionals - Benfield ATT's membership demonstrates our passion for environmentally sustainable timber frame self-builds, new homes, schools and social housing for local housing authorities AECB - Association of Environment Conscious Building – our FSC certified timber frame is endorsed by The Ecology Building Society Impact Upon Society Big Tick Award from Business in the Community – BITC – award-winning timber frame company within the Timber-frame industry TRA - Trussed Rafter Association – our membership assures Timberframe Trusses, Trussed Rafters, roofs and complex and innovative roofscapes are quality HBF - the only developer partnering timber frame company to be members of the House Builders Federation. Wales Quality Centre – members and committee members, we ensure the highest quality, especially when coupled with ISO 9001, FSC certification and Q-Mark Plus standards RICS - Royal Institute of Chartered Surveyors, assures our customers of our professionalism in wood and timber frame building and developing and surveying
Benfield ATT FSC-Certified Engineered Timber Structures do not cost the Earth.
Chain of Custody TT-COC-1928. FSC Trademark (C) 1996 Forestry Stewardship Council