Others are moderately resistant and may require regular or semi-regular treatment to extend their strength against rot. Decay fungi, like most other organisms, require four basic conditions to survive.
Needham muchly Moisture moisture content within the wood of 20-30% They can’t survive much outside of that range. Most decay fungi will die at temps above 130 °F and will become dormant at temperatures below 40 °F. FoodIn this case, wood Wood serves double duty for fungi, being both a food source and a place to live and be insulated from extreme temperatures.
While some of these woods are harder than others, none of them are a good choice, especially in their natural state, for outdoor furniture or projects that are kept in a humid or damp environment. It reacts severely to humidity changes and gets nasty black mildew very easily.
Fortunately, there are options for woods that hold up much better to the threat of fungus and rot. So, if a piece of lumber has a lot of sapwood, it’s going to have low resistance to decay.
Typically, if a tree grows slowly, it has more extractive and higher decay resistance. At your local lumber mill or hardware store, it’s likely that an employee familiar with woodworking will be able to point you in the right direction.
Before you head out to shop for rot- resistant lumber, it’s good to have an idea of what kind of wood you want. After all, each wood will have different properties aside from resistance and durability, like color, texture, grain, how easy it is to work with, its availability and, of course, its cost.
The warmer temperatures and higher moisture levels in the tropics have primed them to withstand decay. These more exotic woods are more expensive and not as easy to pick up at your local store as their more common domestic counterparts.
In order of most-to-least, these are the woods that are resistant to decay and rot damage, along with information about the ease or difficulty of working with it and other physical characteristics of the wood which may make it desirable for particular projects. It is one of the most resistant woods to rot and known for its superior strength, stability, and durability.
Colors can range from gray to brown to red to orange, or a blend of all four. The bulk of the Mahogany timber that is commonly used in the United States comes from three different countries, Mexico, Honduras and the Philippines.
Working with Mahogany: As one of the most workable woods, it is relatively easy to cut, sand, route and stain. Due to its workability, ability to withstand wear and water, and as its rich, natural colors, it is an expensive option.
Uses: Popular uses include furniture, floors and doors, as well as luxury items like yachts, boats, musical instruments and writing pens. Appearance: It has uniform, light pink to reddish-brown colors that tend to darken with age.
It is also commonly used for cigar boxes and humidors, as well as the lining of closets and chests. Widely grown on plantations in tropical regions of Africa, Asia, and Latin America.
Appearance: Usually a golden or medium brown, with color darkening with age. Teak contains a high level of silica which can cause cutting edges to blunt over time Uses: Furniture, exterior construction, carving, small wood carvings and wooden objects, boat building.
Working with cypress : It has great workability and accepts stain and paint very well. Uses: Commonly used for interior trim, veneer, exterior construction, small wood objects, some furniture, docks and boat building.
Appearance: Reddish to pinkish brown, often with random streaks and bands of darker areas. Because of its relative softness, it dents and scratches very easily and can sand unevenly.
Appearance: Light to medium brown, commonly with an olive cast. Has moderately high shrinkage values and can react with iron, sometimes causing staining and discoloration.
Uses: Windows, doors, fine furniture and wood flooring and in boat building. Black Cherry This wood is grown in Eastern North America and is rated as being very durable and resistant to decay.
Uses: Cabinetry, fine furniture, flooring, interior mill work, veneer, turned objects and small specialty wood items. Very popular and considered a premium domestic hardwood in the U.S. An expensive wood.
Uses : Extremely versatile and popular for a variety of projects: furniture, cabinetry, gun stocks, interior paneling, veneer, turned items, and other small wooden objects and novelties. Even rot- resistant woods can become vulnerable over time or with extreme conditions.
The “pressure” part is when the wood product is placed into a large holding tank which is depressurized to remove all air. A preservative is added to the tank, under high pressure which forces it deep into the wood.
The wood is removed from the tank and prepared for shipment to your local lumberyard. Pressure-treated lumber makes a great building material for the outdoors all year long.
If you’re building or buying a deck, mailbox, swing-set, picnic table or any other exterior wood project or product, you can count on long life from a piece made from pressure-treated lumber. The words “chemically-treated” may make you wonder if this wood is safe for pets, children, for garden use, for interiors and more.
Pressure-treated wood is now treated with Alkaline Copper (AC) and Quaternary Ammonium Compounds (Act). These compounds are much less toxic and have shown to not leach into soils the way CCA and Creosote have.
Burning this type of wood releases chemicals in the ash and smoke. Do not place treated wood or sawdust in a compost bin, and do not use it as mulch.
These can cause the wood to release chemicals that may be inhaled or come in contact with skin. Back in the day, farmers used local trees to create rot- resistant fences at their property line.
Midwest's farmers planted thorny Osage orange (McClure Porifera) to delineate their property lines and keep farm animals contained. From a design standpoint, wood surfaces are very intriguing, with their color modulations, weathering and variety of textures.
Woods have a huge range of aesthetic expressions, from wild, bumpy log posts to refined decks sanded smooth. Wood has an undeniable warmth and an association with woodlands and natural landscapes, and one type of rot- resistant wood can be used in a variety of ways.
From an environmental standpoint, wood is a great choice when it is locally sourced and sustainably harvested. IPE has been in vogue for years, and many types certified by the Forest Stewardship Council (FSC) are available. Various woods, especially the tropical hardwoods, like teak and IPE, come in and go out of fashion in the building industry and can have a high potential for commercial exploitation.
Additional woods with medium resistance to rot include loblolly pine (Minus Takeda), European larch (Varix decided) and western red cedar (Thus placate), shown here. The type of rot- resistant wood you decide to use will ultimately come down to cost, availability and desired style. Using Wood Outside Outdoor furniture.
The price for chic outdoor furniture can be justified if your purchase is an investment in products that will weather well over time. Wood that is not sanded smooth or shaped into perfect beams creates a casual feel.
Twining-type vines that wrap around structures, like clematis, are a better choice for a rot- resistant wood trellis, because they will not try to attach their roots to the wood. Using rot- resistant wood outside is especially important when the wood comes in direct contact with the ground, like with a raised garden bed or vine trellis.
There are methods of construction for avoiding ground contact and for pitching wood so that water does not collect on the surface. Plants and vines that grow over the wood also accelerate rot due to moisture buildup.
Natural wood is a lovely choice for adding warmth and texture to garden structures like raised beds, fences, decks and trellises.