The timber frame design is to allow for this shrinkage potential. Cracking and checking is a normal part of timber frame buildings, fences, and furniture and is very rarely a result of any structural issues. Timber frame homes are remarkably customizable in design, with the ability to adapt the floor plan, illuminate the house with natural light, and make use of drywall. TIMBER FRAME STANDARD DETAILS SEPTEMBER 09 Building 1 Grosvenor Court, Hipley Street OLD WOKING, SURREY Tel: +44 (0) 1483 769518 Fax: +44 (0) 1483 770863 E-mail: design@silvatecdesign.com Internet: www.silvatecdesign.com shrinkage is therefore concentrated at the wall plates, floor and roof joists, and rim boards. Shrinkage values: The actual amount of shrinkage varies between the species of timbers which are suitable for a traditional timber frame, with oak coming out at the top with a maximum shrinkage across the grain of 7.5% (from green to the point it will stabilise at in a heated house), Douglas fir 4%, European larch 4.5%, Sweet chestnut 5.5%. You may think it’s a flaw in the timber used, but rest assured, it’s not! Availability, sustainability and suitability, as well as aesthetics, are other factors to consider in choosing your wood. (see Timber frame: Standard details for houses and flats for typical allowances for low-rise buildings. Special attention is The most commonly used wood in timber frames are listed below with a description of their characteristics and benefits. The cost of material varies between timber species. The height of the internal timber wall will shrink due to a combination of load and moisture loss factors, while the external brick will increase in height in the face of swelling caused by moisture absorption. Depending on the materials and details used at floor-to-wall and roof-to-wall intersections, shrinkage in light-frame wood construction can range from 0.05 inches to 0.5 inches per level. The timber frame experts in our joinery shop are experienced in the drying of timbers and can account for the future shrinkage in your home. This publication will describe procedures for estimating Since you don’t want your timber frame to dry too rapidly, it is important to pay close attention to temperature and humidity in your home throughout the first few years. Cracking and checking of timber is actually a very natural part of the life cycle of wood – even once it’s been cut, shaped, and prepared for building. However, timber frame construction produces a set of unique requirements that are caused by the differential movement between the internal timber and external masonry walls. Guidance is also given in the TRADA Timber Frame Construction book.