Severn Valley Woodworks & Hutton Product Guide



ANTI-SLIP DECKBOARD 101 Ex 38mm x 125mm

ANTI-SLIP DECKBOARD 127 Ex 32mm x 125mm

Perishable - Less than 5 years when in contact with the ground. Non durable - 5-10 years when in contact with the ground. Moderately durable - 10-15 years when in contact with the ground. Durable - 15-25 years when in contact with the ground. Very durable - More than 25 years when in contact with the ground. All the tests refer to heartwood stakes of 50mm x 50mm section driven in the ground. Because the softwood timbers we utilise contain considerable amounts of sapwood, Severn Valley Woodworks pressure preservative pre-treat our timbers to help ensure they have low maintenance and a long service life.

and generally be unusable. When you dry timber these problems are minimised. By drying timber in a correct manner, tension within the timber, which can cause many defects, is relieved. There are several advantages to using dry timber. It is stronger and holds nails better than green timber; it is more stable and also minimises future warping; it is less subject to stain, wood decay and insect attack and is easier to paint and treat with preservatives. Air Drying This is carried out by stacking pieces of timber on top of each other, separated by lathes or sticks to allow air to circulate. Alternatively, it can be achieved by placing timbers at right angles to each other, creating gaps for air circulation. This method of drying can take some considerable time. Kiln Drying This is the method used to speed up the drying process using a kilning chamber or de- humidifier. consideration when specifying timber. The sapwood of most timbers is considered perishable and therefore assessments of the natural durability of any species of timber is based on its heartwood. The basic classifications of durability are as follows: Timber Durability Durability is an important

the heartwood. The outer 50mm to 75mm of the sapwood is the living fibre actively involved in growth. The sapwood is the portion of the tree that is most susceptible to stain. Bright sapwood shows no stain and is not limited in any grade, except as specifically provided. Annual ring of growth An average number of annual rings at either one end of a piece of timber, over a 75mm line. The line is usually measured along the centre 75mm of the longest radial line that can be drawn along the piece of timber. Timber Moisture Content and Drying Timber is “hygroscopic”. This means it will take in and give up moisture depending on the condition in which it is placed. It is therefore most important that we have timber at the right “moisture content” before it is put in-situ. The “moisture content” is the weight of water in the wood expressed as a percentage of the weight of oven dry wood. The “moisture content” of dry wood should range from 14% to 20%. Why do we dry timber? When a tree is sawn and is still wet, it will not twist, warp or bend. If you manufacture anything from wet timber, there is a very good chance it will become distorted, shrink, split

Key Stockist benefits: - Growth areas in decking market - Value added product - Increased margin - Compliments existing decking profiles - Simple Sale - ‘does what it says’ - Add on sales - steps, ramps and walkways

Fallen leaves and organic debris, algae growth and wet weather means without regular maintenance decking can become quite slippery underfoot. Innovative non-slip decking from Severn Valley Woodworks using Gripsure ® anti-slip technology creating a deck that even works through snow and ice, ensuring safe use all year round.

Combining natural timber decking with two hardened aggregate non-slip infills, a stylish looking deck can be achieved that delivers peace of mind throughout the year. Grooved profiles are available in 2 sizes - Ex 32mm x 125mm or

Key Customer benefits: - Peace of mind - no accidents - 5 year warranty on anti-slip resin - Sustainably sourced timber - No extra cleaning required - Quick & easy to install - nails or screws - 15 year TREAT-RIGHT performance warranty

Timber Grading The grading of timber considers the size, quality and condition of a piece of timber at the time of the original inspection. There are two fundamental types of grading - mechanical and visual. Timber Supply Severn Valley Woodworks utilise only quality timbers from Scandinavian sources. Scandinavian Softwoods The main commercial grades imported into the UK from Scandinavia are: Unsorted Grade (Grades 1-4) Sawfalling Excluding Sixth Timber Types and Structure Softwoods Commercial timbers of this group are practically confined to the class of Coniferae, or Conifers. Hardwoods Generally from slow grown, broad leafed species. Heartwood A term applied to the central portion of a log. Sapwood Sapwood is the outer layers of growth between the bark and (Grades 1-5) Fifth Grade Sixth Grade

Ex 38mm x 125mm, with 2 non-slip aggregate infills.

General Timber Terms

Quarter Sawn Otherwise known as Rift Sawn. Timbers cut radially from the log, which gives a vertical edge of straight grained appearance. Hit or Miss Means the piece of timber after machining may be completely surfaced, partly surfaced or entirely rough, depending upon the accuracy of the machining.



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